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authorMikael Ronstrom <mikael@mysql.com>2009-09-15 17:07:52 +0200
committerMikael Ronstrom <mikael@mysql.com>2009-09-15 17:07:52 +0200
commit6942c25e733967e4d3da8aaad3b2e9a2832dc33e (patch)
treeee714c9620c9eaa85fba98f4423487d638cc9edf /sql
parent905d715f10e711860311e0a10488c6bb5e19ee49 (diff)
downloadmariadb-git-6942c25e733967e4d3da8aaad3b2e9a2832dc33e.tar.gz
WL#3352, Introducing Column list partitioning, makes it possible to partition on most data types, makes it possible to prune on multi-field partitioning
Diffstat (limited to 'sql')
-rw-r--r--sql/ha_partition.h3
-rw-r--r--sql/item_create.cc22
-rw-r--r--sql/item_timefunc.cc33
-rw-r--r--sql/item_timefunc.h18
-rw-r--r--sql/lex.h1
-rw-r--r--sql/opt_range.cc288
-rw-r--r--sql/partition_element.h37
-rw-r--r--sql/partition_info.cc495
-rw-r--r--sql/partition_info.h36
-rw-r--r--sql/share/errmsg.txt10
-rw-r--r--sql/sql_lex.cc1
-rw-r--r--sql/sql_lex.h3
-rw-r--r--sql/sql_partition.cc1252
-rw-r--r--sql/sql_partition.h12
-rw-r--r--sql/sql_show.cc18
-rw-r--r--sql/sql_table.cc2
-rw-r--r--sql/sql_yacc.yy284
17 files changed, 1770 insertions, 745 deletions
diff --git a/sql/ha_partition.h b/sql/ha_partition.h
index 8a81a759e2a..cc6558f2db0 100644
--- a/sql/ha_partition.h
+++ b/sql/ha_partition.h
@@ -19,7 +19,8 @@
enum partition_keywords
{
- PKW_HASH= 0, PKW_RANGE, PKW_LIST, PKW_KEY, PKW_MAXVALUE, PKW_LINEAR
+ PKW_HASH= 0, PKW_RANGE, PKW_LIST, PKW_KEY, PKW_MAXVALUE, PKW_LINEAR,
+ PKW_COLUMNS
};
/*
diff --git a/sql/item_create.cc b/sql/item_create.cc
index bf359b10caa..3adc0112ff8 100644
--- a/sql/item_create.cc
+++ b/sql/item_create.cc
@@ -2052,6 +2052,18 @@ protected:
virtual ~Create_func_to_days() {}
};
+class Create_func_to_seconds : public Create_func_arg1
+{
+public:
+ virtual Item* create(THD *thd, Item *arg1);
+
+ static Create_func_to_seconds s_singleton;
+
+protected:
+ Create_func_to_seconds() {}
+ virtual ~Create_func_to_seconds() {}
+};
+
#ifdef HAVE_SPATIAL
class Create_func_touches : public Create_func_arg2
@@ -4480,6 +4492,15 @@ Create_func_to_days::create(THD *thd, Item *arg1)
}
+Create_func_to_seconds Create_func_to_seconds::s_singleton;
+
+Item*
+Create_func_to_seconds::create(THD *thd, Item *arg1)
+{
+ return new (thd->mem_root) Item_func_to_seconds(arg1);
+}
+
+
#ifdef HAVE_SPATIAL
Create_func_touches Create_func_touches::s_singleton;
@@ -4917,6 +4938,7 @@ static Native_func_registry func_array[] =
{ { C_STRING_WITH_LEN("TIME_TO_SEC") }, BUILDER(Create_func_time_to_sec)},
{ { C_STRING_WITH_LEN("TOUCHES") }, GEOM_BUILDER(Create_func_touches)},
{ { C_STRING_WITH_LEN("TO_DAYS") }, BUILDER(Create_func_to_days)},
+ { { C_STRING_WITH_LEN("TO_SECONDS") }, BUILDER(Create_func_to_seconds)},
{ { C_STRING_WITH_LEN("UCASE") }, BUILDER(Create_func_ucase)},
{ { C_STRING_WITH_LEN("UNCOMPRESS") }, BUILDER(Create_func_uncompress)},
{ { C_STRING_WITH_LEN("UNCOMPRESSED_LENGTH") }, BUILDER(Create_func_uncompressed_length)},
diff --git a/sql/item_timefunc.cc b/sql/item_timefunc.cc
index d79b0b02998..bad9b85b2b6 100644
--- a/sql/item_timefunc.cc
+++ b/sql/item_timefunc.cc
@@ -941,6 +941,27 @@ longlong Item_func_to_days::val_int()
}
+longlong Item_func_to_seconds::val_int_endpoint(bool left_endp,
+ bool *incl_endp)
+{
+ longlong res= val_int();
+ return null_value ? LONGLONG_MIN : res;
+}
+
+longlong Item_func_to_seconds::val_int()
+{
+ DBUG_ASSERT(fixed == 1);
+ MYSQL_TIME ltime;
+ longlong seconds;
+ longlong days;
+ if (get_arg0_date(&ltime, TIME_NO_ZERO_DATE))
+ return 0;
+ seconds=ltime.hour*3600L+ltime.minute*60+ltime.second;
+ seconds=ltime.neg ? -seconds : seconds;
+ days= (longlong) calc_daynr(ltime.year,ltime.month,ltime.day);
+ return (seconds + days * (24L * 3600L));
+}
+
/*
Get information about this Item tree monotonicity
@@ -967,6 +988,18 @@ enum_monotonicity_info Item_func_to_days::get_monotonicity_info() const
return NON_MONOTONIC;
}
+enum_monotonicity_info Item_func_to_seconds::get_monotonicity_info() const
+{
+ if (args[0]->type() == Item::FIELD_ITEM)
+ {
+ if (args[0]->field_type() == MYSQL_TYPE_DATE)
+ return MONOTONIC_STRICT_INCREASING;
+ if (args[0]->field_type() == MYSQL_TYPE_DATETIME)
+ return MONOTONIC_INCREASING;
+ }
+ return NON_MONOTONIC;
+}
+
longlong Item_func_to_days::val_int_endpoint(bool left_endp, bool *incl_endp)
{
diff --git a/sql/item_timefunc.h b/sql/item_timefunc.h
index 9e3c2e8c89f..fd42ec307db 100644
--- a/sql/item_timefunc.h
+++ b/sql/item_timefunc.h
@@ -73,6 +73,24 @@ public:
};
+class Item_func_to_seconds :public Item_int_func
+{
+public:
+ Item_func_to_seconds(Item *a) :Item_int_func(a) {}
+ longlong val_int();
+ const char *func_name() const { return "to_seconds"; }
+ void fix_length_and_dec()
+ {
+ decimals=0;
+ max_length=6*MY_CHARSET_BIN_MB_MAXLEN;
+ maybe_null=1;
+ }
+ enum_monotonicity_info get_monotonicity_info() const;
+ longlong val_int_endpoint(bool left_endp, bool *incl_endp);
+ bool check_partition_func_processor(uchar *bool_arg) { return FALSE;}
+};
+
+
class Item_func_dayofmonth :public Item_int_func
{
public:
diff --git a/sql/lex.h b/sql/lex.h
index 0a85824f6f7..c42ece86993 100644
--- a/sql/lex.h
+++ b/sql/lex.h
@@ -113,6 +113,7 @@ static SYMBOL symbols[] = {
{ "COLLATION", SYM(COLLATION_SYM)},
{ "COLUMN", SYM(COLUMN_SYM)},
{ "COLUMNS", SYM(COLUMNS)},
+ { "COLUMN_LIST", SYM(COLUMN_LIST_SYM)},
{ "COMMENT", SYM(COMMENT_SYM)},
{ "COMMIT", SYM(COMMIT_SYM)},
{ "COMMITTED", SYM(COMMITTED_SYM)},
diff --git a/sql/opt_range.cc b/sql/opt_range.cc
index 47067c03a85..e226b51fc66 100644
--- a/sql/opt_range.cc
+++ b/sql/opt_range.cc
@@ -438,35 +438,55 @@ public:
return 0;
}
- /* returns a number of keypart values appended to the key buffer */
- int store_min_key(KEY_PART *key, uchar **range_key, uint *range_key_flag)
+ /*
+ Returns a number of keypart values appended to the key buffer
+ for min key and max key. This function is used by both Range
+ Analysis and Partition pruning. For partition pruning we have
+ to ensure that we don't store also subpartition fields. Thus
+ we have to stop at the last partition part and not step into
+ the subpartition fields. For Range Analysis we set last_part
+ to MAX_KEY which we should never reach.
+ */
+ int store_min_key(KEY_PART *key,
+ uchar **range_key,
+ uint *range_key_flag,
+ uint last_part)
{
SEL_ARG *key_tree= first();
uint res= key_tree->store_min(key[key_tree->part].store_length,
range_key, *range_key_flag);
*range_key_flag|= key_tree->min_flag;
if (key_tree->next_key_part &&
+ key_tree->part != last_part &&
key_tree->next_key_part->part == key_tree->part+1 &&
!(*range_key_flag & (NO_MIN_RANGE | NEAR_MIN)) &&
key_tree->next_key_part->type == SEL_ARG::KEY_RANGE)
- res+= key_tree->next_key_part->store_min_key(key, range_key,
- range_key_flag);
+ res+= key_tree->next_key_part->store_min_key(key,
+ range_key,
+ range_key_flag,
+ last_part);
return res;
}
/* returns a number of keypart values appended to the key buffer */
- int store_max_key(KEY_PART *key, uchar **range_key, uint *range_key_flag)
+ int store_max_key(KEY_PART *key,
+ uchar **range_key,
+ uint *range_key_flag,
+ uint last_part)
{
SEL_ARG *key_tree= last();
uint res=key_tree->store_max(key[key_tree->part].store_length,
range_key, *range_key_flag);
(*range_key_flag)|= key_tree->max_flag;
if (key_tree->next_key_part &&
+ key_tree->part != last_part &&
key_tree->next_key_part->part == key_tree->part+1 &&
!(*range_key_flag & (NO_MAX_RANGE | NEAR_MAX)) &&
key_tree->next_key_part->type == SEL_ARG::KEY_RANGE)
- res+= key_tree->next_key_part->store_max_key(key, range_key,
- range_key_flag);
+ res+= key_tree->next_key_part->store_max_key(key,
+ range_key,
+ range_key_flag,
+ last_part);
return res;
}
@@ -634,6 +654,12 @@ public:
using_real_indexes==TRUE
*/
uint real_keynr[MAX_KEY];
+
+ /* Used to store 'current key tuples', in both range analysis and
+ * partitioning (list) analysis*/
+ uchar min_key[MAX_KEY_LENGTH+MAX_FIELD_WIDTH],
+ max_key[MAX_KEY_LENGTH+MAX_FIELD_WIDTH];
+
/* Number of SEL_ARG objects allocated by SEL_ARG::clone_tree operations */
uint alloced_sel_args;
};
@@ -645,8 +671,6 @@ public:
longlong baseflag;
uint max_key_part, range_count;
- uchar min_key[MAX_KEY_LENGTH+MAX_FIELD_WIDTH],
- max_key[MAX_KEY_LENGTH+MAX_FIELD_WIDTH];
bool quick; // Don't calulate possible keys
uint fields_bitmap_size;
@@ -2599,6 +2623,8 @@ typedef struct st_part_prune_param
/* Same as above for subpartitioning */
my_bool *is_subpart_keypart;
+ my_bool ignore_part_fields; /* Ignore rest of partioning fields */
+
/***************************************************************
Following fields form find_used_partitions() recursion context:
**************************************************************/
@@ -2614,6 +2640,11 @@ typedef struct st_part_prune_param
/* Initialized bitmap of no_subparts size */
MY_BITMAP subparts_bitmap;
+
+ uchar *cur_min_key;
+ uchar *cur_max_key;
+
+ uint cur_min_flag, cur_max_flag;
} PART_PRUNE_PARAM;
static bool create_partition_index_description(PART_PRUNE_PARAM *prune_par);
@@ -2731,6 +2762,11 @@ bool prune_partitions(THD *thd, TABLE *table, Item *pprune_cond)
prune_param.arg_stack_end= prune_param.arg_stack;
prune_param.cur_part_fields= 0;
prune_param.cur_subpart_fields= 0;
+
+ prune_param.cur_min_key= prune_param.range_param.min_key;
+ prune_param.cur_max_key= prune_param.range_param.max_key;
+ prune_param.cur_min_flag= prune_param.cur_max_flag= 0;
+
init_all_partitions_iterator(part_info, &prune_param.part_iter);
if (!tree->keys[0] || (-1 == (res= find_used_partitions(&prune_param,
tree->keys[0]))))
@@ -2967,6 +3003,11 @@ int find_used_partitions_imerge(PART_PRUNE_PARAM *ppar, SEL_IMERGE *imerge)
ppar->arg_stack_end= ppar->arg_stack;
ppar->cur_part_fields= 0;
ppar->cur_subpart_fields= 0;
+
+ ppar->cur_min_key= ppar->range_param.min_key;
+ ppar->cur_max_key= ppar->range_param.max_key;
+ ppar->cur_min_flag= ppar->cur_max_flag= 0;
+
init_all_partitions_iterator(ppar->part_info, &ppar->part_iter);
SEL_ARG *key_tree= (*ptree)->keys[0];
if (!key_tree || (-1 == (res |= find_used_partitions(ppar, key_tree))))
@@ -3091,8 +3132,12 @@ int find_used_partitions(PART_PRUNE_PARAM *ppar, SEL_ARG *key_tree)
{
int res, left_res=0, right_res=0;
int partno= (int)key_tree->part;
- bool pushed= FALSE;
bool set_full_part_if_bad_ret= FALSE;
+ bool ignore_part_fields= ppar->ignore_part_fields;
+ bool did_set_ignore_part_fields= FALSE;
+
+ if (check_stack_overrun(ppar->range_param.thd, 3*STACK_MIN_SIZE, NULL))
+ return -1;
if (key_tree->left != &null_element)
{
@@ -3100,35 +3145,153 @@ int find_used_partitions(PART_PRUNE_PARAM *ppar, SEL_ARG *key_tree)
return -1;
}
+ /* Push SEL_ARG's to stack to enable looking backwards as well */
+ ppar->cur_part_fields+= ppar->is_part_keypart[partno];
+ ppar->cur_subpart_fields+= ppar->is_subpart_keypart[partno];
+ *(ppar->arg_stack_end++)= key_tree;
+
if (key_tree->type == SEL_ARG::KEY_RANGE)
{
- if (partno == 0 && (NULL != ppar->part_info->get_part_iter_for_interval))
+ if (ppar->part_info->get_part_iter_for_interval &&
+ key_tree->part <= ppar->last_part_partno)
{
- /*
- Partitioning is done by RANGE|INTERVAL(monotonic_expr(fieldX)), and
- we got "const1 CMP fieldX CMP const2" interval <-- psergey-todo: change
+ if (ignore_part_fields)
+ {
+ /*
+ We come here when a condition on the first partitioning
+ fields led to evaluating the partitioning condition
+ (due to finding a condition of the type a < const or
+ b > const). Thus we must ignore the rest of the
+ partitioning fields but we still want to analyse the
+ subpartitioning fields.
+ */
+ if (key_tree->next_key_part)
+ res= find_used_partitions(ppar, key_tree->next_key_part);
+ else
+ res= -1;
+ goto pop_and_go_right;
+ }
+ /* Collect left and right bound, their lengths and flags */
+ uchar *min_key= ppar->cur_min_key;
+ uchar *max_key= ppar->cur_max_key;
+ uchar *tmp_min_key= min_key;
+ uchar *tmp_max_key= max_key;
+ key_tree->store_min(ppar->key[key_tree->part].store_length,
+ &tmp_min_key, ppar->cur_min_flag);
+ key_tree->store_max(ppar->key[key_tree->part].store_length,
+ &tmp_max_key, ppar->cur_max_flag);
+ uint flag;
+ if (key_tree->next_key_part &&
+ key_tree->next_key_part->part == key_tree->part+1 &&
+ key_tree->next_key_part->part <= ppar->last_part_partno &&
+ key_tree->next_key_part->type == SEL_ARG::KEY_RANGE)
+ {
+ /*
+ There are more key parts for partition pruning to handle
+ This mainly happens when the condition is an equality
+ condition.
+ */
+ if ((tmp_min_key - min_key) == (tmp_max_key - max_key) &&
+ (memcmp(min_key, max_key, (uint)(tmp_max_key - max_key)) == 0) &&
+ !key_tree->min_flag && !key_tree->max_flag)
+ {
+ /* Set 'parameters' */
+ ppar->cur_min_key= tmp_min_key;
+ ppar->cur_max_key= tmp_max_key;
+ uint save_min_flag= ppar->cur_min_flag;
+ uint save_max_flag= ppar->cur_max_flag;
+
+ ppar->cur_min_flag|= key_tree->min_flag;
+ ppar->cur_max_flag|= key_tree->max_flag;
+
+ res= find_used_partitions(ppar, key_tree->next_key_part);
+
+ /* Restore 'parameters' back */
+ ppar->cur_min_key= min_key;
+ ppar->cur_max_key= max_key;
+
+ ppar->cur_min_flag= save_min_flag;
+ ppar->cur_max_flag= save_max_flag;
+ goto pop_and_go_right;
+ }
+ /* We have arrived at the last field in the partition pruning */
+ uint tmp_min_flag= key_tree->min_flag,
+ tmp_max_flag= key_tree->max_flag;
+ if (!tmp_min_flag)
+ key_tree->next_key_part->store_min_key(ppar->key,
+ &tmp_min_key,
+ &tmp_min_flag,
+ ppar->last_part_partno);
+ if (!tmp_max_flag)
+ key_tree->next_key_part->store_max_key(ppar->key,
+ &tmp_max_key,
+ &tmp_max_flag,
+ ppar->last_part_partno);
+ flag= tmp_min_flag | tmp_max_flag;
+ }
+ else
+ flag= key_tree->min_flag | key_tree->max_flag;
+
+ if (tmp_min_key != ppar->range_param.min_key)
+ flag&= ~NO_MIN_RANGE;
+ else
+ flag|= NO_MIN_RANGE;
+ if (tmp_max_key != ppar->range_param.max_key)
+ flag&= ~NO_MAX_RANGE;
+ else
+ flag|= NO_MAX_RANGE;
+
+ /*
+ We need to call the interval mapper if we have a condition which
+ makes sense to prune on. In the example of a COLUMN_LIST on a and
+ b it makes sense if we have a condition on a, or conditions on
+ both a and b. If we only have conditions on b it might make sense
+ but this is a harder case we will solve later. For the harder case
+ this clause then turns into use of all partitions and thus we
+ simply set res= -1 as if the mapper had returned that.
*/
- DBUG_EXECUTE("info", dbug_print_segment_range(key_tree,
- ppar->range_param.
- key_parts););
- res= ppar->part_info->
- get_part_iter_for_interval(ppar->part_info,
- FALSE,
- key_tree->min_value,
- key_tree->max_value,
- key_tree->min_flag | key_tree->max_flag,
- &ppar->part_iter);
- if (!res)
- goto go_right; /* res==0 --> no satisfying partitions */
+ if (ppar->arg_stack[0]->part == 0)
+ {
+ uint32 i;
+ uint32 store_length_array[MAX_KEY];
+ uint32 num_keys= ppar->part_fields;
+
+ for (i= 0; i < num_keys; i++)
+ store_length_array[i]= ppar->key[i].store_length;
+ res= ppar->part_info->
+ get_part_iter_for_interval(ppar->part_info,
+ FALSE,
+ store_length_array,
+ ppar->range_param.min_key,
+ ppar->range_param.max_key,
+ tmp_min_key - ppar->range_param.min_key,
+ tmp_max_key - ppar->range_param.max_key,
+ flag,
+ &ppar->part_iter);
+ if (!res)
+ goto pop_and_go_right; /* res==0 --> no satisfying partitions */
+ }
+ else
+ res= -1;
+
if (res == -1)
{
- //get a full range iterator
+ /* get a full range iterator */
init_all_partitions_iterator(ppar->part_info, &ppar->part_iter);
}
/*
Save our intent to mark full partition as used if we will not be able
to obtain further limits on subpartitions
*/
+ if (partno < ppar->last_part_partno)
+ {
+ /*
+ We need to ignore the rest of the partitioning fields in all
+ evaluations after this
+ */
+ did_set_ignore_part_fields= TRUE;
+ ppar->ignore_part_fields= TRUE;
+ }
set_full_part_if_bad_ret= TRUE;
goto process_next_key_part;
}
@@ -3143,13 +3306,16 @@ int find_used_partitions(PART_PRUNE_PARAM *ppar, SEL_ARG *key_tree)
res= ppar->part_info->
get_subpart_iter_for_interval(ppar->part_info,
TRUE,
+ NULL, /* Currently not used here */
key_tree->min_value,
key_tree->max_value,
- key_tree->min_flag | key_tree->max_flag,
+ 0, 0, /* Those are ignored here */
+ key_tree->min_flag |
+ key_tree->max_flag,
&subpart_iter);
DBUG_ASSERT(res); /* We can't get "no satisfying subpartitions" */
if (res == -1)
- return -1; /* all subpartitions satisfy */
+ goto pop_and_go_right; /* all subpartitions satisfy */
uint32 subpart_id;
bitmap_clear_all(&ppar->subparts_bitmap);
@@ -3167,18 +3333,14 @@ int find_used_partitions(PART_PRUNE_PARAM *ppar, SEL_ARG *key_tree)
bitmap_set_bit(&ppar->part_info->used_partitions,
part_id * ppar->part_info->no_subparts + i);
}
- goto go_right;
+ goto pop_and_go_right;
}
if (key_tree->is_singlepoint())
{
- pushed= TRUE;
- ppar->cur_part_fields+= ppar->is_part_keypart[partno];
- ppar->cur_subpart_fields+= ppar->is_subpart_keypart[partno];
- *(ppar->arg_stack_end++) = key_tree;
-
if (partno == ppar->last_part_partno &&
- ppar->cur_part_fields == ppar->part_fields)
+ ppar->cur_part_fields == ppar->part_fields &&
+ ppar->part_info->get_part_iter_for_interval == NULL)
{
/*
Ok, we've got "fieldN<=>constN"-type SEL_ARGs for all partitioning
@@ -3245,7 +3407,10 @@ int find_used_partitions(PART_PRUNE_PARAM *ppar, SEL_ARG *key_tree)
able to infer any suitable condition, so bail out.
*/
if (partno >= ppar->last_part_partno)
- return -1;
+ {
+ res= -1;
+ goto pop_and_go_right;
+ }
}
}
@@ -3254,7 +3419,17 @@ process_next_key_part:
res= find_used_partitions(ppar, key_tree->next_key_part);
else
res= -1;
-
+
+ if (did_set_ignore_part_fields)
+ {
+ /*
+ We have returned from processing all key trees linked to our next
+ key part. We are ready to be moving down (using right pointers) and
+ this tree is a new evaluation requiring its own decision on whether
+ to ignore partitioning fields.
+ */
+ ppar->ignore_part_fields= FALSE;
+ }
if (set_full_part_if_bad_ret)
{
if (res == -1)
@@ -3277,18 +3452,14 @@ process_next_key_part:
init_all_partitions_iterator(ppar->part_info, &ppar->part_iter);
}
- if (pushed)
- {
pop_and_go_right:
- /* Pop this key part info off the "stack" */
- ppar->arg_stack_end--;
- ppar->cur_part_fields-= ppar->is_part_keypart[partno];
- ppar->cur_subpart_fields-= ppar->is_subpart_keypart[partno];
- }
+ /* Pop this key part info off the "stack" */
+ ppar->arg_stack_end--;
+ ppar->cur_part_fields-= ppar->is_part_keypart[partno];
+ ppar->cur_subpart_fields-= ppar->is_subpart_keypart[partno];
if (res == -1)
return -1;
-go_right:
if (key_tree->right != &null_element)
{
if (-1 == (right_res= find_used_partitions(ppar,key_tree->right)))
@@ -3377,6 +3548,7 @@ static bool create_partition_index_description(PART_PRUNE_PARAM *ppar)
uint total_parts= used_part_fields + used_subpart_fields;
+ ppar->ignore_part_fields= FALSE;
ppar->part_fields= used_part_fields;
ppar->last_part_partno= (int)used_part_fields - 1;
@@ -7477,12 +7649,16 @@ check_quick_keys(PARAM *param, uint idx, SEL_ARG *key_tree,
tmp_max_flag=key_tree->max_flag;
if (!tmp_min_flag)
tmp_min_keypart+=
- key_tree->next_key_part->store_min_key(param->key[idx], &tmp_min_key,
- &tmp_min_flag);
+ key_tree->next_key_part->store_min_key(param->key[idx],
+ &tmp_min_key,
+ &tmp_min_flag,
+ MAX_KEY);
if (!tmp_max_flag)
tmp_max_keypart+=
- key_tree->next_key_part->store_max_key(param->key[idx], &tmp_max_key,
- &tmp_max_flag);
+ key_tree->next_key_part->store_max_key(param->key[idx],
+ &tmp_max_key,
+ &tmp_max_flag,
+ MAX_KEY);
min_key_length= (uint) (tmp_min_key - param->min_key);
max_key_length= (uint) (tmp_max_key - param->max_key);
}
@@ -7752,11 +7928,15 @@ get_quick_keys(PARAM *param,QUICK_RANGE_SELECT *quick,KEY_PART *key,
{
uint tmp_min_flag=key_tree->min_flag,tmp_max_flag=key_tree->max_flag;
if (!tmp_min_flag)
- min_part+= key_tree->next_key_part->store_min_key(key, &tmp_min_key,
- &tmp_min_flag);
+ min_part+= key_tree->next_key_part->store_min_key(key,
+ &tmp_min_key,
+ &tmp_min_flag,
+ MAX_KEY);
if (!tmp_max_flag)
- max_part+= key_tree->next_key_part->store_max_key(key, &tmp_max_key,
- &tmp_max_flag);
+ max_part+= key_tree->next_key_part->store_max_key(key,
+ &tmp_max_key,
+ &tmp_max_flag,
+ MAX_KEY);
flag=tmp_min_flag | tmp_max_flag;
}
}
diff --git a/sql/partition_element.h b/sql/partition_element.h
index 905bc38165b..d749681fe9b 100644
--- a/sql/partition_element.h
+++ b/sql/partition_element.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2006 MySQL AB
+/* Copyright (C) 2006-2009 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -36,6 +36,35 @@ enum partition_state {
};
/*
+ This struct is used to keep track of column expressions as part
+ of the COLUMNS concept in conjunction with RANGE and LIST partitioning.
+ The value can be either of MINVALUE, MAXVALUE and an expression that
+ must be constant and evaluate to the same type as the column it
+ represents.
+
+ The data in this fixed in two steps. The parser will only fill in whether
+ it is a max_value or provide an expression. Filling in
+ column_value, part_info, partition_id, null_value is done by the
+ function fix_column_value_function. However the item tree needs
+ fixed also before writing it into the frm file (in add_column_list_values).
+ To distinguish between those two variants, fixed= 1 after the
+ fixing in add_column_list_values and fixed= 2 otherwise. This is
+ since the fixing in add_column_list_values isn't a complete fixing.
+*/
+
+typedef struct p_column_list_val
+{
+ void* column_value;
+ Item* item_expression;
+ partition_info *part_info;
+ uint partition_id;
+ bool max_value;
+ bool null_value;
+ char fixed;
+} part_column_list_val;
+
+
+/*
This struct is used to contain the value of an element
in the VALUES IN struct. It needs to keep knowledge of
whether it is a signed/unsigned value and whether it is
@@ -47,6 +76,7 @@ typedef struct p_elem_val
longlong value;
bool null_value;
bool unsigned_flag;
+ part_column_list_val *col_val_array;
} part_elem_value;
struct st_ddl_log_memory_entry;
@@ -68,8 +98,9 @@ public:
enum partition_state part_state;
uint16 nodegroup_id;
bool has_null_value;
- bool signed_flag;/* Indicate whether this partition uses signed constants */
- bool max_value; /* Indicate whether this partition uses MAXVALUE */
+ /* signed_flag and max_value only relevant for subpartitions */
+ bool signed_flag;
+ bool max_value;
partition_element()
: part_max_rows(0), part_min_rows(0), range_value(0),
diff --git a/sql/partition_info.cc b/sql/partition_info.cc
index e2027d3571e..bb7c7c2be0f 100644
--- a/sql/partition_info.cc
+++ b/sql/partition_info.cc
@@ -591,6 +591,7 @@ error:
SYNOPSIS
check_range_constants()
+ thd Thread object
RETURN VALUE
TRUE An error occurred during creation of range constants
@@ -603,76 +604,112 @@ error:
called for RANGE PARTITIONed tables.
*/
-bool partition_info::check_range_constants()
+bool partition_info::check_range_constants(THD *thd)
{
partition_element* part_def;
- longlong current_largest;
- longlong part_range_value;
bool first= TRUE;
uint i;
List_iterator<partition_element> it(partitions);
- bool result= TRUE;
- bool signed_flag= !part_expr->unsigned_flag;
+ int result= TRUE;
DBUG_ENTER("partition_info::check_range_constants");
- DBUG_PRINT("enter", ("INT_RESULT with %d parts", no_parts));
-
- LINT_INIT(current_largest);
+ DBUG_PRINT("enter", ("RANGE with %d parts, column_list = %u", no_parts,
+ column_list));
- part_result_type= INT_RESULT;
- range_int_array= (longlong*)sql_alloc(no_parts * sizeof(longlong));
- if (unlikely(range_int_array == NULL))
+ if (column_list)
{
- mem_alloc_error(no_parts * sizeof(longlong));
- goto end;
- }
- i= 0;
- do
- {
- part_def= it++;
- if ((i != (no_parts - 1)) || !defined_max_value)
+ part_column_list_val* loc_range_col_array;
+ part_column_list_val *current_largest_col_val;
+ uint no_column_values= part_field_list.elements;
+ uint size_entries= sizeof(part_column_list_val) * no_column_values;
+ range_col_array= (part_column_list_val*)sql_calloc(no_parts *
+ size_entries);
+ LINT_INIT(current_largest_col_val);
+ if (unlikely(range_col_array == NULL))
{
- part_range_value= part_def->range_value;
- if (!signed_flag)
- part_range_value-= 0x8000000000000000ULL;
+ mem_alloc_error(no_parts * sizeof(longlong));
+ goto end;
}
- else
- part_range_value= LONGLONG_MAX;
- if (first)
+ loc_range_col_array= range_col_array;
+ i= 0;
+ do
{
- current_largest= part_range_value;
- range_int_array[0]= part_range_value;
+ part_def= it++;
+ {
+ List_iterator<part_elem_value> list_val_it(part_def->list_val_list);
+ part_elem_value *range_val= list_val_it++;
+ part_column_list_val *col_val= range_val->col_val_array;
+
+ if (fix_column_value_functions(thd, col_val, i))
+ goto end;
+ memcpy(loc_range_col_array, (const void*)col_val, size_entries);
+ loc_range_col_array+= no_column_values;
+ if (!first)
+ {
+ if (compare_column_values((const void*)current_largest_col_val,
+ (const void*)col_val) >= 0)
+ goto range_not_increasing_error;
+ }
+ current_largest_col_val= col_val;
+ }
first= FALSE;
+ } while (++i < no_parts);
+ }
+ else
+ {
+ longlong current_largest;
+ longlong part_range_value;
+ bool signed_flag= !part_expr->unsigned_flag;
+
+ LINT_INIT(current_largest);
+
+ part_result_type= INT_RESULT;
+ range_int_array= (longlong*)sql_alloc(no_parts * sizeof(longlong));
+ if (unlikely(range_int_array == NULL))
+ {
+ mem_alloc_error(no_parts * sizeof(longlong));
+ goto end;
}
- else
+ i= 0;
+ do
{
- if (likely(current_largest < part_range_value))
+ part_def= it++;
+ if ((i != (no_parts - 1)) || !defined_max_value)
{
- current_largest= part_range_value;
- range_int_array[i]= part_range_value;
- }
- else if (defined_max_value &&
- current_largest == part_range_value &&
- part_range_value == LONGLONG_MAX &&
- i == (no_parts - 1))
- {
- range_int_array[i]= part_range_value;
+ part_range_value= part_def->range_value;
+ if (!signed_flag)
+ part_range_value-= 0x8000000000000000ULL;
}
else
+ part_range_value= LONGLONG_MAX;
+
+ if (!first)
{
- my_error(ER_RANGE_NOT_INCREASING_ERROR, MYF(0));
- goto end;
+ if (unlikely(current_largest > part_range_value) ||
+ (unlikely(current_largest == part_range_value) &&
+ (part_range_value < LONGLONG_MAX ||
+ i != (no_parts - 1) ||
+ !defined_max_value)))
+ goto range_not_increasing_error;
}
- }
- } while (++i < no_parts);
+ range_int_array[i]= part_range_value;
+ current_largest= part_range_value;
+ first= FALSE;
+ } while (++i < no_parts);
+ }
result= FALSE;
end:
DBUG_RETURN(result);
+
+range_not_increasing_error:
+ my_error(ER_RANGE_NOT_INCREASING_ERROR, MYF(0));
+ goto end;
}
/*
Support routines for check_list_constants used by qsort to sort the
- constant list expressions. One routine for unsigned and one for signed.
+ constant list expressions. One routine for integers and one for
+ column lists.
SYNOPSIS
list_part_cmp()
@@ -697,6 +734,133 @@ int partition_info::list_part_cmp(const void* a, const void* b)
return 0;
}
+ /*
+ Compare two lists of column values in RANGE/LIST partitioning
+ SYNOPSIS
+ compare_column_values()
+ first First column list argument
+ second Second column list argument
+ RETURN VALUES
+ 0 Equal
+ -1 First argument is smaller
+ +1 First argument is larger
+*/
+
+int partition_info::compare_column_values(const void *first_arg,
+ const void *second_arg)
+{
+ const part_column_list_val *first= (part_column_list_val*)first_arg;
+ const part_column_list_val *second= (part_column_list_val*)second_arg;
+ partition_info *part_info= first->part_info;
+ Field **field;
+
+ for (field= part_info->part_field_array; *field;
+ field++, first++, second++)
+ {
+ if (first->max_value || second->max_value)
+ {
+ if (first->max_value && second->max_value)
+ continue;
+ if (second->max_value)
+ return -1;
+ else
+ return +1;
+ }
+ if (first->null_value || second->null_value)
+ {
+ if (first->null_value && second->null_value)
+ continue;
+ if (second->null_value)
+ return +1;
+ else
+ return -1;
+ }
+ int res= (*field)->cmp((const uchar*)first->column_value,
+ (const uchar*)second->column_value);
+ if (res)
+ return res;
+ }
+ return 0;
+}
+
+/*
+ Evaluate VALUES functions for column list values
+ SYNOPSIS
+ fix_column_value_functions()
+ thd Thread object
+ col_val List of column values
+ part_id Partition id we are fixing
+ RETURN VALUES
+ TRUE Error
+ FALSE Success
+ DESCRIPTION
+ Fix column VALUES and store in memory array adapted to the data type
+*/
+
+bool partition_info::fix_column_value_functions(THD *thd,
+ part_column_list_val *col_val,
+ uint part_id)
+{
+ uint no_columns= part_field_list.elements;
+ Name_resolution_context *context= &thd->lex->current_select->context;
+ TABLE_LIST *save_list= context->table_list;
+ bool result= FALSE;
+ uint i;
+ const char *save_where= thd->where;
+ DBUG_ENTER("partition_info::fix_column_value_functions");
+ if (col_val->fixed > 1)
+ {
+ DBUG_RETURN(FALSE);
+ }
+ context->table_list= 0;
+ thd->where= "partition function";
+ for (i= 0; i < no_columns; col_val++, i++)
+ {
+ Item *column_item= col_val->item_expression;
+ Field *field= part_field_array[i];
+ col_val->part_info= this;
+ col_val->partition_id= part_id;
+ if (col_val->max_value)
+ col_val->column_value= NULL;
+ else
+ {
+ if (!col_val->fixed &&
+ (column_item->fix_fields(thd, (Item**)0) ||
+ (!column_item->const_item())))
+ {
+ my_error(ER_NO_CONST_EXPR_IN_RANGE_OR_LIST_ERROR, MYF(0));
+ result= TRUE;
+ goto end;
+ }
+ col_val->null_value= column_item->null_value;
+ col_val->column_value= NULL;
+ if (!col_val->null_value)
+ {
+ uchar *val_ptr;
+ uint len= field->pack_length();
+ if (column_item->save_in_field(field, TRUE))
+ {
+ my_error(ER_WRONG_TYPE_COLUMN_VALUE_ERROR, MYF(0));
+ result= TRUE;
+ goto end;
+ }
+ if (!(val_ptr= (uchar*) sql_calloc(len)))
+ {
+ mem_alloc_error(len);
+ result= TRUE;
+ goto end;
+ }
+ col_val->column_value= val_ptr;
+ memcpy(val_ptr, field->ptr, len);
+ }
+ }
+ col_val->fixed= 2;
+ }
+end:
+ thd->where= save_where;
+ context->table_list= save_list;
+ DBUG_RETURN(result);
+}
/*
This routine allocates an array for all list constants to achieve a fast
@@ -706,6 +870,7 @@ int partition_info::list_part_cmp(const void* a, const void* b)
SYNOPSIS
check_list_constants()
+ thd Thread object
RETURN VALUE
TRUE An error occurred during creation of list constants
@@ -718,15 +883,18 @@ int partition_info::list_part_cmp(const void* a, const void* b)
called for LIST PARTITIONed tables.
*/
-bool partition_info::check_list_constants()
+bool partition_info::check_list_constants(THD *thd)
{
- uint i;
+ uint i, size_entries, no_column_values;
uint list_index= 0;
part_elem_value *list_value;
bool result= TRUE;
- longlong curr_value, prev_value, type_add, calc_value;
+ longlong type_add, calc_value;
+ void *curr_value, *prev_value;
partition_element* part_def;
bool found_null= FALSE;
+ int (*compare_func)(const void *, const void*);
+ void *ptr;
List_iterator<partition_element> list_func_it(partitions);
DBUG_ENTER("partition_info::check_list_constants");
@@ -767,48 +935,86 @@ bool partition_info::check_list_constants()
no_list_values++;
} while (++i < no_parts);
list_func_it.rewind();
- list_array= (LIST_PART_ENTRY*)sql_alloc((no_list_values+1) *
- sizeof(LIST_PART_ENTRY));
- if (unlikely(list_array == NULL))
+ no_column_values= part_field_list.elements;
+ size_entries= column_list ?
+ (no_column_values * sizeof(part_column_list_val)) :
+ sizeof(LIST_PART_ENTRY);
+ ptr= sql_calloc((no_list_values+1) * size_entries);
+ if (unlikely(ptr == NULL))
{
- mem_alloc_error(no_list_values * sizeof(LIST_PART_ENTRY));
+ mem_alloc_error(no_list_values * size_entries);
goto end;
}
-
- i= 0;
- /*
- Fix to be able to reuse signed sort functions also for unsigned
- partition functions.
- */
- type_add= (longlong)(part_expr->unsigned_flag ?
+ if (column_list)
+ {
+ part_column_list_val *loc_list_col_array;
+ loc_list_col_array= (part_column_list_val*)ptr;
+ list_col_array= (part_column_list_val*)ptr;
+ compare_func= compare_column_values;
+ i= 0;
+ /*
+ Fix to be able to reuse signed sort functions also for unsigned
+ partition functions.
+ */
+ do
+ {
+ part_def= list_func_it++;
+ List_iterator<part_elem_value> list_val_it2(part_def->list_val_list);
+ while ((list_value= list_val_it2++))
+ {
+ part_column_list_val *col_val= list_value->col_val_array;
+ if (unlikely(fix_column_value_functions(thd, col_val, i)))
+ {
+ DBUG_RETURN(TRUE);
+ }
+ memcpy(loc_list_col_array, (const void*)col_val, size_entries);
+ loc_list_col_array+= no_column_values;
+ }
+ } while (++i < no_parts);
+ }
+ else
+ {
+ compare_func= list_part_cmp;
+ list_array= (LIST_PART_ENTRY*)ptr;
+ i= 0;
+ /*
+ Fix to be able to reuse signed sort functions also for unsigned
+ partition functions.
+ */
+ type_add= (longlong)(part_expr->unsigned_flag ?
0x8000000000000000ULL :
0ULL);
- do
- {
- part_def= list_func_it++;
- List_iterator<part_elem_value> list_val_it2(part_def->list_val_list);
- while ((list_value= list_val_it2++))
+ do
{
- calc_value= list_value->value - type_add;
- list_array[list_index].list_value= calc_value;
- list_array[list_index++].partition_id= i;
- }
- } while (++i < no_parts);
-
+ part_def= list_func_it++;
+ List_iterator<part_elem_value> list_val_it2(part_def->list_val_list);
+ while ((list_value= list_val_it2++))
+ {
+ calc_value= list_value->value - type_add;
+ list_array[list_index].list_value= calc_value;
+ list_array[list_index++].partition_id= i;
+ }
+ } while (++i < no_parts);
+ }
if (fixed && no_list_values)
{
bool first= TRUE;
+ /*
+ list_array and list_col_array are unions, so this works for both
+ variants of LIST partitioning.
+ */
my_qsort((void*)list_array, no_list_values, sizeof(LIST_PART_ENTRY),
&list_part_cmp);
-
+
i= 0;
LINT_INIT(prev_value);
do
{
DBUG_ASSERT(i < no_list_values);
- curr_value= list_array[i].list_value;
- if (likely(first || prev_value != curr_value))
+ curr_value= column_list ? (void*)&list_col_array[no_column_values * i] :
+ (void*)&list_array[i];
+ if (likely(first || compare_func(curr_value, prev_value)))
{
prev_value= curr_value;
first= FALSE;
@@ -831,10 +1037,11 @@ end:
SYNOPSIS
check_partition_info()
+ thd Thread object
+ eng_type Return value for used engine in partitions
file A reference to a handler of the table
info Create info
- engine_type Return value for used engine in partitions
- check_partition_function Should we check the partition function
+ add_or_reorg_part Is it ALTER TABLE ADD/REORGANIZE command
RETURN VALUE
TRUE Error, something went wrong
@@ -850,7 +1057,7 @@ end:
bool partition_info::check_partition_info(THD *thd, handlerton **eng_type,
handler *file, HA_CREATE_INFO *info,
- bool check_partition_function)
+ bool add_or_reorg_part)
{
handlerton *table_engine= default_engine_type;
uint i, tot_partitions;
@@ -861,11 +1068,11 @@ bool partition_info::check_partition_info(THD *thd, handlerton **eng_type,
DBUG_PRINT("info", ("default table_engine = %s",
ha_resolve_storage_engine_name(table_engine)));
- if (check_partition_function)
+ if (!add_or_reorg_part)
{
int err= 0;
- if (part_type != HASH_PARTITION || !list_of_part_fields)
+ if (!list_of_part_fields)
{
DBUG_ASSERT(part_expr);
err= part_expr->walk(&Item::check_partition_func_processor, 0,
@@ -1064,10 +1271,12 @@ bool partition_info::check_partition_info(THD *thd, handlerton **eng_type,
list constants.
*/
- if (fixed)
+ if (add_or_reorg_part)
{
- if (unlikely((part_type == RANGE_PARTITION && check_range_constants()) ||
- (part_type == LIST_PARTITION && check_list_constants())))
+ if (unlikely((part_type == RANGE_PARTITION &&
+ check_range_constants(thd)) ||
+ (part_type == LIST_PARTITION &&
+ check_list_constants(thd))))
goto end;
}
result= FALSE;
@@ -1098,20 +1307,96 @@ void partition_info::print_no_partition_found(TABLE *table)
if (check_single_table_access(current_thd,
SELECT_ACL, &table_list, TRUE))
+ {
my_message(ER_NO_PARTITION_FOR_GIVEN_VALUE,
ER(ER_NO_PARTITION_FOR_GIVEN_VALUE_SILENT), MYF(0));
+ }
else
{
- my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->read_set);
- if (part_expr->null_value)
- buf_ptr= (char*)"NULL";
+ if (column_list)
+ buf_ptr= (char*)"from column_list";
else
- longlong2str(err_value, buf,
- part_expr->unsigned_flag ? 10 : -10);
+ {
+ my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->read_set);
+ if (part_expr->null_value)
+ buf_ptr= (char*)"NULL";
+ else
+ longlong2str(err_value, buf,
+ part_expr->unsigned_flag ? 10 : -10);
+ dbug_tmp_restore_column_map(table->read_set, old_map);
+ }
my_error(ER_NO_PARTITION_FOR_GIVEN_VALUE, MYF(0), buf_ptr);
- dbug_tmp_restore_column_map(table->read_set, old_map);
}
}
+
+
+/*
+ Create a new column value in current list
+ SYNOPSIS
+ add_column_value()
+ RETURN
+ >0 A part_column_list_val object which have been
+ inserted into its list
+ 0 Memory allocation failure
+*/
+
+part_column_list_val *partition_info::add_column_value()
+{
+ uint max_val= num_columns ? num_columns : MAX_REF_PARTS;
+ DBUG_ENTER("add_column_value");
+ DBUG_PRINT("enter", ("num_columns = %u, curr_list_object %u, max_val = %u",
+ num_columns, curr_list_object, max_val));
+ if (curr_list_object < max_val)
+ {
+ DBUG_RETURN(&curr_list_val->col_val_array[curr_list_object++]);
+ }
+ my_error(ER_PARTITION_COLUMN_LIST_ERROR, MYF(0));
+ DBUG_RETURN(NULL);
+}
+
+
+/*
+ Set fields related to partition expression
+ SYNOPSIS
+ set_part_expr()
+ start_token Start of partition function string
+ item_ptr Pointer to item tree
+ end_token End of partition function string
+ is_subpart Subpartition indicator
+ RETURN VALUES
+ TRUE Memory allocation error
+ FALSE Success
+*/
+
+bool partition_info::set_part_expr(char *start_token, Item *item_ptr,
+ char *end_token, bool is_subpart)
+{
+ uint expr_len= end_token - start_token;
+ char *func_string= (char*) sql_memdup(start_token, expr_len);
+
+ if (!func_string)
+ {
+ mem_alloc_error(expr_len);
+ return TRUE;
+ }
+ if (is_subpart)
+ {
+ list_of_subpart_fields= FALSE;
+ subpart_expr= item_ptr;
+ subpart_func_string= func_string;
+ subpart_func_len= expr_len;
+ }
+ else
+ {
+ list_of_part_fields= FALSE;
+ part_expr= item_ptr;
+ part_func_string= func_string;
+ part_func_len= expr_len;
+ }
+ return FALSE;
+}
+
+
/*
Set up buffers and arrays for fields requiring preparation
SYNOPSIS
@@ -1223,46 +1508,6 @@ bool partition_info::set_up_charset_field_preps()
}
subpart_charset_field_array[i]= NULL;
}
- if (tot_fields)
- {
- uint k;
- size= tot_fields*sizeof(char**);
- if (!(char_ptrs= (uchar**)sql_calloc(size)))
- goto error;
- full_part_field_buffers= char_ptrs;
- if (!(char_ptrs= (uchar**)sql_calloc(size)))
- goto error;
- restore_full_part_field_ptrs= char_ptrs;
- size= (tot_fields + 1) * sizeof(char**);
- if (!(char_ptrs= (uchar**)sql_calloc(size)))
- goto error;
- full_part_charset_field_array= (Field**)char_ptrs;
- for (i= 0; i < tot_part_fields; i++)
- {
- full_part_charset_field_array[i]= part_charset_field_array[i];
- full_part_field_buffers[i]= part_field_buffers[i];
- }
- k= tot_part_fields;
- for (i= 0; i < tot_subpart_fields; i++)
- {
- uint j;
- bool found= FALSE;
- field= subpart_charset_field_array[i];
-
- for (j= 0; j < tot_part_fields; j++)
- {
- if (field == part_charset_field_array[i])
- found= TRUE;
- }
- if (!found)
- {
- full_part_charset_field_array[k]= subpart_charset_field_array[i];
- full_part_field_buffers[k]= subpart_field_buffers[i];
- k++;
- }
- }
- full_part_charset_field_array[k]= NULL;
- }
DBUG_RETURN(FALSE);
error:
mem_alloc_error(size);
diff --git a/sql/partition_info.h b/sql/partition_info.h
index 415f955d5d4..f232e761946 100644
--- a/sql/partition_info.h
+++ b/sql/partition_info.h
@@ -19,6 +19,8 @@
#include "partition_element.h"
+#define MAX_STR_SIZE_PF 512
+
class partition_info;
/* Some function typedefs */
@@ -64,10 +66,9 @@ public:
/*
When we have various string fields we might need some preparation
before and clean-up after calling the get_part_id_func's. We need
- one such method for get_partition_id and one for
- get_part_partition_id and one for get_subpartition_id.
+ one such method for get_part_partition_id and one for
+ get_subpartition_id.
*/
- get_part_id_func get_partition_id_charset;
get_part_id_func get_part_partition_id_charset;
get_subpart_id_func get_subpartition_id_charset;
@@ -81,7 +82,6 @@ public:
without duplicates, NULL-terminated.
*/
Field **full_part_field_array;
- Field **full_part_charset_field_array;
/*
Set of all fields used in partition and subpartition expression.
Required for testing of partition fields in write_set when
@@ -97,10 +97,8 @@ public:
*/
uchar **part_field_buffers;
uchar **subpart_field_buffers;
- uchar **full_part_field_buffers;
uchar **restore_part_field_ptrs;
uchar **restore_subpart_field_ptrs;
- uchar **restore_full_part_field_ptrs;
Item *part_expr;
Item *subpart_expr;
@@ -124,6 +122,8 @@ public:
union {
longlong *range_int_array;
LIST_PART_ENTRY *list_array;
+ part_column_list_val *range_col_array;
+ part_column_list_val *list_col_array;
};
/********************************************
@@ -154,6 +154,10 @@ public:
partition_element *curr_part_elem;
partition_element *current_partition;
+ part_elem_value *curr_list_val;
+ uint curr_list_object;
+ uint num_columns;
+
/*
These key_map's are used for Partitioning to enable quick decisions
on whether we can derive more information about which partition to
@@ -205,7 +209,7 @@ public:
bool is_auto_partitioned;
bool from_openfrm;
bool has_null_value;
-
+ bool column_list;
partition_info()
: get_partition_id(NULL), get_part_partition_id(NULL),
@@ -214,11 +218,8 @@ public:
part_charset_field_array(NULL),
subpart_charset_field_array(NULL),
full_part_field_array(NULL),
- full_part_charset_field_array(NULL),
part_field_buffers(NULL), subpart_field_buffers(NULL),
- full_part_field_buffers(NULL),
restore_part_field_ptrs(NULL), restore_subpart_field_ptrs(NULL),
- restore_full_part_field_ptrs(NULL),
part_expr(NULL), subpart_expr(NULL), item_free_list(NULL),
first_log_entry(NULL), exec_log_entry(NULL), frm_log_entry(NULL),
list_array(NULL), err_value(0),
@@ -226,6 +227,7 @@ public:
part_func_string(NULL), subpart_func_string(NULL),
part_state(NULL),
curr_part_elem(NULL), current_partition(NULL),
+ curr_list_object(0), num_columns(0),
default_engine_type(NULL),
part_result_type(INT_RESULT),
part_type(NOT_A_PARTITION), subpart_type(NOT_A_PARTITION),
@@ -241,7 +243,7 @@ public:
list_of_part_fields(FALSE), list_of_subpart_fields(FALSE),
linear_hash_ind(FALSE), fixed(FALSE),
is_auto_partitioned(FALSE), from_openfrm(FALSE),
- has_null_value(FALSE)
+ has_null_value(FALSE), column_list(FALSE)
{
all_fields_in_PF.clear_all();
all_fields_in_PPF.clear_all();
@@ -271,16 +273,19 @@ public:
uint start_no);
char *has_unique_names();
bool check_engine_mix(handlerton *engine_type, bool default_engine);
- bool check_range_constants();
- bool check_list_constants();
+ bool check_range_constants(THD *thd);
+ bool check_list_constants(THD *thd);
bool check_partition_info(THD *thd, handlerton **eng_type,
handler *file, HA_CREATE_INFO *info,
bool check_partition_function);
void print_no_partition_found(TABLE *table);
+ part_column_list_val *add_column_value();
+ bool set_part_expr(char *start_token, Item *item_ptr,
+ char *end_token, bool is_subpart);
+ static int compare_column_values(const void *a, const void *b);
bool set_up_charset_field_preps();
private:
static int list_part_cmp(const void* a, const void* b);
- static int list_part_cmp_unsigned(const void* a, const void* b);
bool set_up_default_partitions(handler *file, HA_CREATE_INFO *info,
uint start_no);
bool set_up_default_subpartitions(handler *file, HA_CREATE_INFO *info);
@@ -288,6 +293,9 @@ private:
uint start_no);
char *create_subpartition_name(uint subpart_no, const char *part_name);
bool has_unique_name(partition_element *element);
+ bool fix_column_value_functions(THD *thd,
+ part_column_list_val *col_val,
+ uint part_id);
};
uint32 get_next_partition_id_range(struct st_partition_iter* part_iter);
diff --git a/sql/share/errmsg.txt b/sql/share/errmsg.txt
index 5531ee71620..514dc06728d 100644
--- a/sql/share/errmsg.txt
+++ b/sql/share/errmsg.txt
@@ -6180,6 +6180,16 @@ ER_TOO_LONG_FIELD_COMMENT
ER_FUNC_INEXISTENT_NAME_COLLISION 42000
eng "FUNCTION %s does not exist. Check the 'Function Name Parsing and Resolution' section in the Reference Manual"
+ER_GLOBAL_PARTITION_INDEX_ERROR
+ eng "Partitioning of indexes only supported for global indexes"
+ER_PARTITION_COLUMN_LIST_ERROR
+ eng "Inconsistency in usage of column lists for partitioning"
+ER_WRONG_TYPE_COLUMN_VALUE_ERROR
+ eng "Partition column values of incorrect type"
+ER_TOO_MANY_PARTITION_FUNC_FIELDS_ERROR
+ eng "Too many fields in '%s'"
+ER_MAXVALUE_IN_LIST_PARTITIONING_ERROR
+ eng "Cannot use MAXVALUE as value in List partitioning"
# When updating these, please update EXPLAIN_FILENAME_MAX_EXTRA_LENGTH in
# mysql_priv.h with the new maximal additional length for explain_filename.
diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc
index 2adbc44eb12..61f243ece1c 100644
--- a/sql/sql_lex.cc
+++ b/sql/sql_lex.cc
@@ -323,6 +323,7 @@ void lex_start(THD *thd)
lex->select_lex.select_number= 1;
lex->length=0;
lex->part_info= 0;
+ lex->global_flag= 0;
lex->select_lex.in_sum_expr=0;
lex->select_lex.ftfunc_list_alloc.empty();
lex->select_lex.ftfunc_list= &lex->select_lex.ftfunc_list_alloc;
diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index 76fd5354c51..d714e3d0441 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -1565,6 +1565,9 @@ typedef struct st_lex : public Query_tables_list
/* Partition info structure filled in by PARTITION BY parse part */
partition_info *part_info;
+ /* Flag to index a global index created */
+ bool global_flag;
+
/*
The definer of the object being created (view, trigger, stored routine).
I.e. the value of DEFINER clause.
diff --git a/sql/sql_partition.cc b/sql/sql_partition.cc
index 61766e5c509..9684e842d40 100644
--- a/sql/sql_partition.cc
+++ b/sql/sql_partition.cc
@@ -18,16 +18,29 @@
to partitioning introduced in MySQL version 5.1. It contains functionality
used by all handlers that support partitioning, such as
the partitioning handler itself and the NDB handler.
+ (Much of the code in this file has been split into partition_info.cc and
+ the header files partition_info.h + partition_element.h + sql_partition.h)
- The first version was written by Mikael Ronstrom.
+ The first version was written by Mikael Ronstrom 2004-2006.
+ Various parts of the optimizer code was written by Sergey Petrunia.
+ Code have been maintained by Mattias Jonsson.
+ The second version was written by Mikael Ronstrom 2006-2007 with some
+ final fixes for partition pruning in 2008-2009 with assistance from Sergey
+ Petrunia and Mattias Jonsson.
- This version supports RANGE partitioning, LIST partitioning, HASH
+ The first version supports RANGE partitioning, LIST partitioning, HASH
partitioning and composite partitioning (hereafter called subpartitioning)
where each RANGE/LIST partitioning is HASH partitioned. The hash function
can either be supplied by the user or by only a list of fields (also
called KEY partitioning), where the MySQL server will use an internal
hash function.
There are quite a few defaults that can be used as well.
+
+ The second version introduces a new variant of RANGE and LIST partitioning
+ which is often referred to as column lists in the code variables. This
+ enables a user to specify a set of columns and their concatenated value
+ as the partition value. By comparing the concatenation of these values
+ the proper partition can be choosen.
*/
/* Some general useful functions */
@@ -50,9 +63,11 @@ const LEX_STRING partition_keywords[]=
{ C_STRING_WITH_LEN("LIST") },
{ C_STRING_WITH_LEN("KEY") },
{ C_STRING_WITH_LEN("MAXVALUE") },
- { C_STRING_WITH_LEN("LINEAR ") }
+ { C_STRING_WITH_LEN("LINEAR ") },
+ { C_STRING_WITH_LEN(" COLUMN_LIST") }
};
static const char *part_str= "PARTITION";
+static const char *subpart_str= "SUBPARTITION";
static const char *sub_str= "SUB";
static const char *by_str= "BY";
static const char *space_str= " ";
@@ -61,26 +76,23 @@ static const char *end_paren_str= ")";
static const char *begin_paren_str= "(";
static const char *comma_str= ",";
-static int get_part_id_charset_func_all(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-static int get_part_id_charset_func_part(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-static int get_part_id_charset_func_subpart(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-static int get_part_part_id_charset_func(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-static int get_subpart_id_charset_func(partition_info *part_info,
- uint32 *part_id);
+int get_partition_id_list_col(partition_info *part_info,
+ uint32 *part_id,
+ longlong *func_value);
int get_partition_id_list(partition_info *part_info,
uint32 *part_id,
longlong *func_value);
+int get_partition_id_range_col(partition_info *part_info,
+ uint32 *part_id,
+ longlong *func_value);
int get_partition_id_range(partition_info *part_info,
uint32 *part_id,
longlong *func_value);
+static int get_part_id_charset_func_part(partition_info *part_info,
+ uint32 *part_id,
+ longlong *func_value);
+static int get_part_id_charset_func_subpart(partition_info *part_info,
+ uint32 *part_id);
int get_partition_id_hash_nosub(partition_info *part_info,
uint32 *part_id,
longlong *func_value);
@@ -93,30 +105,9 @@ int get_partition_id_linear_hash_nosub(partition_info *part_info,
int get_partition_id_linear_key_nosub(partition_info *part_info,
uint32 *part_id,
longlong *func_value);
-int get_partition_id_range_sub_hash(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-int get_partition_id_range_sub_key(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-int get_partition_id_range_sub_linear_hash(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-int get_partition_id_range_sub_linear_key(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-int get_partition_id_list_sub_hash(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-int get_partition_id_list_sub_key(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-int get_partition_id_list_sub_linear_hash(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
-int get_partition_id_list_sub_linear_key(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value);
+int get_partition_id_with_sub(partition_info *part_info,
+ uint32 *part_id,
+ longlong *func_value);
int get_partition_id_hash_sub(partition_info *part_info,
uint32 *part_id);
int get_partition_id_key_sub(partition_info *part_info,
@@ -134,14 +125,29 @@ uint32 get_next_partition_id_range(PARTITION_ITERATOR* part_iter);
uint32 get_next_partition_id_list(PARTITION_ITERATOR* part_iter);
int get_part_iter_for_interval_via_mapping(partition_info *part_info,
bool is_subpart,
+ uint32 *store_length_array,
uchar *min_value, uchar *max_value,
+ uint min_len, uint max_len,
uint flags,
PARTITION_ITERATOR *part_iter);
+int get_part_iter_for_interval_cols_via_map(partition_info *part_info,
+ bool is_subpart,
+ uint32 *store_length_array,
+ uchar *min_value, uchar *max_value,
+ uint min_len, uint max_len,
+ uint flags,
+ PARTITION_ITERATOR *part_iter);
int get_part_iter_for_interval_via_walking(partition_info *part_info,
bool is_subpart,
+ uint32 *store_length_array,
uchar *min_value, uchar *max_value,
+ uint min_len, uint max_len,
uint flags,
PARTITION_ITERATOR *part_iter);
+static int cmp_rec_and_tuple(part_column_list_val *val, uint32 nvals_in_rec);
+static int cmp_rec_and_tuple_prune(part_column_list_val *val,
+ uint32 n_vals_in_rec,
+ bool tail_is_min);
#ifdef WITH_PARTITION_STORAGE_ENGINE
/*
@@ -161,7 +167,7 @@ bool is_name_in_list(char *name,
List<char> list_names)
{
List_iterator<char> names_it(list_names);
- uint no_names= list_names.elements;
+ uint num_names= list_names.elements;
uint i= 0;
do
@@ -169,7 +175,7 @@ bool is_name_in_list(char *name,
char *list_name= names_it++;
if (!(my_strcasecmp(system_charset_info, name, list_name)))
return TRUE;
- } while (++i < no_names);
+ } while (++i < num_names);
return FALSE;
}
@@ -451,6 +457,7 @@ static bool set_up_field_array(TABLE *table,
uint no_fields= 0;
uint size_field_array;
uint i= 0;
+ uint inx;
partition_info *part_info= table->part_info;
int result= FALSE;
DBUG_ENTER("set_up_field_array");
@@ -461,6 +468,16 @@ static bool set_up_field_array(TABLE *table,
if (field->flags & GET_FIXED_FIELDS_FLAG)
no_fields++;
}
+ if (no_fields > MAX_REF_PARTS)
+ {
+ char *ptr;
+ if (is_sub_part)
+ ptr= (char*)"subpartition function";
+ else
+ ptr= (char*)"partition function";
+ my_error(ER_TOO_MANY_PARTITION_FUNC_FIELDS_ERROR, MYF(0), ptr);
+ DBUG_RETURN(TRUE);
+ }
if (no_fields == 0)
{
/*
@@ -470,7 +487,7 @@ static bool set_up_field_array(TABLE *table,
DBUG_RETURN(result);
}
size_field_array= (no_fields+1)*sizeof(Field*);
- field_array= (Field**)sql_alloc(size_field_array);
+ field_array= (Field**)sql_calloc(size_field_array);
if (unlikely(!field_array))
{
mem_alloc_error(size_field_array);
@@ -485,7 +502,30 @@ static bool set_up_field_array(TABLE *table,
field->flags|= FIELD_IN_PART_FUNC_FLAG;
if (likely(!result))
{
- field_array[i++]= field;
+ if (!is_sub_part && part_info->column_list)
+ {
+ List_iterator<char> it(part_info->part_field_list);
+ char *field_name;
+
+ DBUG_ASSERT(no_fields == part_info->part_field_list.elements);
+ inx= 0;
+ do
+ {
+ field_name= it++;
+ if (!strcmp(field_name, field->field_name))
+ break;
+ } while (++inx < no_fields);
+ if (inx == no_fields)
+ {
+ mem_alloc_error(1);
+ result= TRUE;
+ continue;
+ }
+ }
+ else
+ inx= i;
+ field_array[inx]= field;
+ i++;
/*
We check that the fields are proper. It is required for each
@@ -564,7 +604,7 @@ static bool create_full_part_field_array(THD *thd, TABLE *table,
no_part_fields++;
}
size_field_array= (no_part_fields+1)*sizeof(Field*);
- field_array= (Field**)sql_alloc(size_field_array);
+ field_array= (Field**)sql_calloc(size_field_array);
if (unlikely(!field_array))
{
mem_alloc_error(size_field_array);
@@ -776,7 +816,7 @@ static bool handle_list_of_fields(List_iterator<char> it,
goto end;
}
}
- if (is_list_empty)
+ if (is_list_empty && part_info->part_type == HASH_PARTITION)
{
uint primary_key= table->s->primary_key;
if (primary_key != MAX_KEY)
@@ -868,7 +908,6 @@ int check_signed_flag(partition_info *part_info)
table The table object
part_info Reference to partitioning data structure
is_sub_part Is the table subpartitioned as well
- is_field_to_be_setup Flag if we are to set-up field arrays
RETURN VALUE
TRUE An error occurred, something was wrong with the
@@ -891,8 +930,8 @@ int check_signed_flag(partition_info *part_info)
on the field object.
*/
-bool fix_fields_part_func(THD *thd, Item* func_expr, TABLE *table,
- bool is_sub_part, bool is_field_to_be_setup)
+static bool fix_fields_part_func(THD *thd, Item* func_expr, TABLE *table,
+ bool is_sub_part)
{
partition_info *part_info= table->part_info;
uint dir_length, home_dir_length;
@@ -985,8 +1024,7 @@ bool fix_fields_part_func(THD *thd, Item* func_expr, TABLE *table,
if (unlikely(error))
{
DBUG_PRINT("info", ("Field in partition function not part of table"));
- if (is_field_to_be_setup)
- clear_field_flag(table);
+ clear_field_flag(table);
goto end;
}
thd->where= save_where;
@@ -998,9 +1036,7 @@ bool fix_fields_part_func(THD *thd, Item* func_expr, TABLE *table,
}
if ((!is_sub_part) && (error= check_signed_flag(part_info)))
goto end;
- result= FALSE;
- if (is_field_to_be_setup)
- result= set_up_field_array(table, is_sub_part);
+ result= set_up_field_array(table, is_sub_part);
if (!is_sub_part)
part_info->fixed= TRUE;
end:
@@ -1283,64 +1319,47 @@ static void set_up_partition_func_pointers(partition_info *part_info)
if (part_info->is_sub_partitioned())
{
+ part_info->get_partition_id= get_partition_id_with_sub;
if (part_info->part_type == RANGE_PARTITION)
{
- part_info->get_part_partition_id= get_partition_id_range;
+ if (part_info->column_list)
+ part_info->get_part_partition_id= get_partition_id_range_col;
+ else
+ part_info->get_part_partition_id= get_partition_id_range;
if (part_info->list_of_subpart_fields)
{
if (part_info->linear_hash_ind)
- {
- part_info->get_partition_id= get_partition_id_range_sub_linear_key;
part_info->get_subpartition_id= get_partition_id_linear_key_sub;
- }
else
- {
- part_info->get_partition_id= get_partition_id_range_sub_key;
part_info->get_subpartition_id= get_partition_id_key_sub;
- }
}
else
{
if (part_info->linear_hash_ind)
- {
- part_info->get_partition_id= get_partition_id_range_sub_linear_hash;
part_info->get_subpartition_id= get_partition_id_linear_hash_sub;
- }
else
- {
- part_info->get_partition_id= get_partition_id_range_sub_hash;
part_info->get_subpartition_id= get_partition_id_hash_sub;
- }
}
}
else /* LIST Partitioning */
{
- part_info->get_part_partition_id= get_partition_id_list;
+ if (part_info->column_list)
+ part_info->get_part_partition_id= get_partition_id_list_col;
+ else
+ part_info->get_part_partition_id= get_partition_id_list;
if (part_info->list_of_subpart_fields)
{
if (part_info->linear_hash_ind)
- {
- part_info->get_partition_id= get_partition_id_list_sub_linear_key;
part_info->get_subpartition_id= get_partition_id_linear_key_sub;
- }
else
- {
- part_info->get_partition_id= get_partition_id_list_sub_key;
part_info->get_subpartition_id= get_partition_id_key_sub;
- }
}
else
{
if (part_info->linear_hash_ind)
- {
- part_info->get_partition_id= get_partition_id_list_sub_linear_hash;
part_info->get_subpartition_id= get_partition_id_linear_hash_sub;
- }
else
- {
- part_info->get_partition_id= get_partition_id_list_sub_hash;
part_info->get_subpartition_id= get_partition_id_hash_sub;
- }
}
}
}
@@ -1349,9 +1368,19 @@ static void set_up_partition_func_pointers(partition_info *part_info)
part_info->get_part_partition_id= NULL;
part_info->get_subpartition_id= NULL;
if (part_info->part_type == RANGE_PARTITION)
- part_info->get_partition_id= get_partition_id_range;
+ {
+ if (part_info->column_list)
+ part_info->get_partition_id= get_partition_id_range_col;
+ else
+ part_info->get_partition_id= get_partition_id_range;
+ }
else if (part_info->part_type == LIST_PARTITION)
- part_info->get_partition_id= get_partition_id_list;
+ {
+ if (part_info->column_list)
+ part_info->get_partition_id= get_partition_id_list_col;
+ else
+ part_info->get_partition_id= get_partition_id_list;
+ }
else /* HASH partitioning */
{
if (part_info->list_of_part_fields)
@@ -1370,32 +1399,37 @@ static void set_up_partition_func_pointers(partition_info *part_info)
}
}
}
- if (part_info->full_part_charset_field_array)
+ /*
+ We need special functions to handle character sets since they require copy
+ of field pointers and restore afterwards. For subpartitioned tables we do
+ the copy and restore individually on the part and subpart parts. For non-
+ subpartitioned tables we use the same functions as used for the parts part
+ of subpartioning.
+ Thus for subpartitioned tables the get_partition_id is always
+ get_partition_id_with_sub, even when character sets exists.
+ */
+ if (part_info->part_charset_field_array)
{
- DBUG_ASSERT(part_info->get_partition_id);
- part_info->get_partition_id_charset= part_info->get_partition_id;
- if (part_info->part_charset_field_array &&
- part_info->subpart_charset_field_array)
- part_info->get_partition_id= get_part_id_charset_func_all;
- else if (part_info->part_charset_field_array)
- part_info->get_partition_id= get_part_id_charset_func_part;
+ if (part_info->is_sub_partitioned())
+ {
+ DBUG_ASSERT(part_info->get_part_partition_id);
+ part_info->get_part_partition_id_charset=
+ part_info->get_part_partition_id;
+ part_info->get_part_partition_id= get_part_id_charset_func_part;
+ }
else
- part_info->get_partition_id= get_part_id_charset_func_subpart;
- }
- if (part_info->part_charset_field_array &&
- part_info->is_sub_partitioned())
- {
- DBUG_ASSERT(part_info->get_part_partition_id);
- part_info->get_part_partition_id_charset=
- part_info->get_part_partition_id;
- part_info->get_part_partition_id= get_part_part_id_charset_func;
+ {
+ DBUG_ASSERT(part_info->get_partition_id);
+ part_info->get_part_partition_id_charset= part_info->get_partition_id;
+ part_info->get_partition_id= get_part_id_charset_func_part;
+ }
}
if (part_info->subpart_charset_field_array)
{
DBUG_ASSERT(part_info->get_subpartition_id);
part_info->get_subpartition_id_charset=
part_info->get_subpartition_id;
- part_info->get_subpartition_id= get_subpart_id_charset_func;
+ part_info->get_subpartition_id= get_part_id_charset_func_subpart;
}
DBUG_VOID_RETURN;
}
@@ -1603,12 +1637,12 @@ bool fix_partition_func(THD *thd, TABLE *table,
else
{
if (unlikely(fix_fields_part_func(thd, part_info->subpart_expr,
- table, TRUE, TRUE)))
+ table, TRUE)))
goto end;
if (unlikely(part_info->subpart_expr->result_type() != INT_RESULT))
{
my_error(ER_PARTITION_FUNC_NOT_ALLOWED_ERROR, MYF(0),
- "SUBPARTITION");
+ subpart_str);
goto end;
}
}
@@ -1631,7 +1665,7 @@ bool fix_partition_func(THD *thd, TABLE *table,
else
{
if (unlikely(fix_fields_part_func(thd, part_info->part_expr,
- table, FALSE, TRUE)))
+ table, FALSE)))
goto end;
if (unlikely(part_info->part_expr->result_type() != INT_RESULT))
{
@@ -1644,19 +1678,28 @@ bool fix_partition_func(THD *thd, TABLE *table,
else
{
const char *error_str;
- if (unlikely(fix_fields_part_func(thd, part_info->part_expr,
- table, FALSE, TRUE)))
- goto end;
+ if (part_info->column_list)
+ {
+ List_iterator<char> it(part_info->part_field_list);
+ if (unlikely(handle_list_of_fields(it, table, part_info, FALSE)))
+ goto end;
+ }
+ else
+ {
+ if (unlikely(fix_fields_part_func(thd, part_info->part_expr,
+ table, FALSE)))
+ goto end;
+ }
if (part_info->part_type == RANGE_PARTITION)
{
error_str= partition_keywords[PKW_RANGE].str;
- if (unlikely(part_info->check_range_constants()))
+ if (unlikely(part_info->check_range_constants(thd)))
goto end;
}
else if (part_info->part_type == LIST_PARTITION)
{
error_str= partition_keywords[PKW_LIST].str;
- if (unlikely(part_info->check_list_constants()))
+ if (unlikely(part_info->check_list_constants(thd)))
goto end;
}
else
@@ -1670,7 +1713,8 @@ bool fix_partition_func(THD *thd, TABLE *table,
my_error(ER_PARTITIONS_MUST_BE_DEFINED_ERROR, MYF(0), error_str);
goto end;
}
- if (unlikely(part_info->part_expr->result_type() != INT_RESULT))
+ if (unlikely(!part_info->column_list &&
+ part_info->part_expr->result_type() != INT_RESULT))
{
my_error(ER_PARTITION_FUNC_NOT_ALLOWED_ERROR, MYF(0), part_str);
goto end;
@@ -1723,9 +1767,9 @@ end:
static int add_write(File fptr, const char *buf, uint len)
{
- uint len_written= my_write(fptr, (const uchar*)buf, len, MYF(0));
+ uint ret_code= my_write(fptr, (const uchar*)buf, len, MYF(MY_FNABP));
- if (likely(len == len_written))
+ if (likely(ret_code == 0))
return 0;
else
return 1;
@@ -1774,14 +1818,8 @@ static int add_begin_parenthesis(File fptr)
static int add_part_key_word(File fptr, const char *key_string)
{
int err= add_string(fptr, key_string);
-
err+= add_space(fptr);
- return err + add_begin_parenthesis(fptr);
-}
-
-static int add_hash(File fptr)
-{
- return add_part_key_word(fptr, partition_keywords[PKW_HASH].str);
+ return err;
}
static int add_partition(File fptr)
@@ -1812,15 +1850,15 @@ static int add_subpartition_by(File fptr)
return err + add_partition_by(fptr);
}
-static int add_key_partition(File fptr, List<char> field_list)
+static int add_part_field_list(File fptr, List<char> field_list)
{
uint i, no_fields;
- int err;
+ int err= 0;
List_iterator<char> part_it(field_list);
- err= add_part_key_word(fptr, partition_keywords[PKW_KEY].str);
no_fields= field_list.elements;
i= 0;
+ err+= add_begin_parenthesis(fptr);
while (i < no_fields)
{
const char *field_str= part_it++;
@@ -1836,6 +1874,7 @@ static int add_key_partition(File fptr, List<char> field_list)
err+= add_comma(fptr);
i++;
}
+ err+= add_end_parenthesis(fptr);
return err;
}
@@ -1945,24 +1984,88 @@ static int add_partition_options(File fptr, partition_element *p_elem)
return err + add_engine(fptr,p_elem->engine_type);
}
-static int add_partition_values(File fptr, partition_info *part_info, partition_element *p_elem)
+static int add_column_list_values(File fptr, partition_info *part_info,
+ part_elem_value *list_value)
+{
+ int err= 0;
+ uint i;
+ uint no_elements= part_info->part_field_list.elements;
+ err+= add_string(fptr, partition_keywords[PKW_COLUMNS].str);
+ err+= add_begin_parenthesis(fptr);
+ for (i= 0; i < no_elements; i++)
+ {
+ part_column_list_val *col_val= &list_value->col_val_array[i];
+ if (col_val->max_value)
+ err+= add_string(fptr, partition_keywords[PKW_MAXVALUE].str);
+ else if (col_val->null_value)
+ err+= add_string(fptr, "NULL");
+ else
+ {
+ char buffer[MAX_STR_SIZE_PF];
+ String str(buffer, sizeof(buffer), &my_charset_bin);
+ Item *item_expr= col_val->item_expression;
+ if (!col_val->fixed &&
+ (item_expr->fix_fields(current_thd, (Item**)0) ||
+ (!item_expr->const_item())))
+ {
+ my_error(ER_NO_CONST_EXPR_IN_RANGE_OR_LIST_ERROR, MYF(0));
+ return 1;
+ }
+ col_val->fixed= 1;
+ if (item_expr->null_value)
+ err+= add_string(fptr, "NULL");
+ else
+ {
+ String *res= item_expr->val_str(&str);
+ if (!res)
+ {
+ my_error(ER_NO_CONST_EXPR_IN_RANGE_OR_LIST_ERROR, MYF(0));
+ return 1;
+ }
+ if (item_expr->result_type() == STRING_RESULT)
+ err+= add_string(fptr,"'");
+ err+= add_string_object(fptr, res);
+ if (item_expr->result_type() == STRING_RESULT)
+ err+= add_string(fptr,"'");
+ }
+ }
+ if (i != (no_elements - 1))
+ err+= add_string(fptr, comma_str);
+ }
+ err+= add_end_parenthesis(fptr);
+ return err;
+}
+
+static int add_partition_values(File fptr, partition_info *part_info,
+ partition_element *p_elem)
{
int err= 0;
if (part_info->part_type == RANGE_PARTITION)
{
err+= add_string(fptr, " VALUES LESS THAN ");
- if (!p_elem->max_value)
+ if (part_info->column_list)
{
+ List_iterator<part_elem_value> list_val_it(p_elem->list_val_list);
+ part_elem_value *list_value= list_val_it++;
err+= add_begin_parenthesis(fptr);
- if (p_elem->signed_flag)
- err+= add_int(fptr, p_elem->range_value);
- else
- err+= add_uint(fptr, p_elem->range_value);
+ err+= add_column_list_values(fptr, part_info, list_value);
err+= add_end_parenthesis(fptr);
}
else
- err+= add_string(fptr, partition_keywords[PKW_MAXVALUE].str);
+ {
+ if (!p_elem->max_value)
+ {
+ err+= add_begin_parenthesis(fptr);
+ if (p_elem->signed_flag)
+ err+= add_int(fptr, p_elem->range_value);
+ else
+ err+= add_uint(fptr, p_elem->range_value);
+ err+= add_end_parenthesis(fptr);
+ }
+ else
+ err+= add_string(fptr, partition_keywords[PKW_MAXVALUE].str);
+ }
}
else if (part_info->part_type == LIST_PARTITION)
{
@@ -1987,10 +2090,15 @@ static int add_partition_values(File fptr, partition_info *part_info, partition_
{
part_elem_value *list_value= list_val_it++;
- if (!list_value->unsigned_flag)
- err+= add_int(fptr, list_value->value);
+ if (part_info->column_list)
+ err+= add_column_list_values(fptr, part_info, list_value);
else
- err+= add_uint(fptr, list_value->value);
+ {
+ if (!list_value->unsigned_flag)
+ err+= add_int(fptr, list_value->value);
+ else
+ err+= add_uint(fptr, list_value->value);
+ }
if (i != (no_items-1))
err+= add_comma(fptr);
} while (++i < no_items);
@@ -2073,9 +2181,12 @@ char *generate_partition_syntax(partition_info *part_info,
if (part_info->linear_hash_ind)
err+= add_string(fptr, partition_keywords[PKW_LINEAR].str);
if (part_info->list_of_part_fields)
- err+= add_key_partition(fptr, part_info->part_field_list);
+ {
+ err+= add_part_key_word(fptr, partition_keywords[PKW_KEY].str);
+ err+= add_part_field_list(fptr, part_info->part_field_list);
+ }
else
- err+= add_hash(fptr);
+ err+= add_part_key_word(fptr, partition_keywords[PKW_HASH].str);
break;
default:
DBUG_ASSERT(0);
@@ -2085,9 +2196,17 @@ char *generate_partition_syntax(partition_info *part_info,
DBUG_RETURN(NULL);
}
if (part_info->part_expr)
+ {
+ err+= add_begin_parenthesis(fptr);
err+= add_string_len(fptr, part_info->part_func_string,
part_info->part_func_len);
- err+= add_end_parenthesis(fptr);
+ err+= add_end_parenthesis(fptr);
+ }
+ else if (part_info->column_list)
+ {
+ err+= add_string(fptr, partition_keywords[PKW_COLUMNS].str);
+ err+= add_part_field_list(fptr, part_info->part_field_list);
+ }
if ((!part_info->use_default_no_partitions) &&
part_info->use_default_partitions)
{
@@ -2103,13 +2222,19 @@ char *generate_partition_syntax(partition_info *part_info,
if (part_info->linear_hash_ind)
err+= add_string(fptr, partition_keywords[PKW_LINEAR].str);
if (part_info->list_of_subpart_fields)
- err+= add_key_partition(fptr, part_info->subpart_field_list);
+ {
+ add_part_key_word(fptr, partition_keywords[PKW_KEY].str);
+ add_part_field_list(fptr, part_info->subpart_field_list);
+ }
else
- err+= add_hash(fptr);
+ err+= add_part_key_word(fptr, partition_keywords[PKW_HASH].str);
if (part_info->subpart_expr)
+ {
+ err+= add_begin_parenthesis(fptr);
err+= add_string_len(fptr, part_info->subpart_func_string,
part_info->subpart_func_len);
- err+= add_end_parenthesis(fptr);
+ err+= add_end_parenthesis(fptr);
+ }
if ((!part_info->use_default_no_subpartitions) &&
part_info->use_default_subpartitions)
{
@@ -2446,7 +2571,7 @@ static uint32 get_part_id_linear_key(partition_info *part_info,
uint no_parts,
longlong *func_value)
{
- DBUG_ENTER("get_partition_id_linear_key");
+ DBUG_ENTER("get_part_id_linear_key");
*func_value= calculate_key_value(field_array);
DBUG_RETURN(get_part_id_from_linear_hash(*func_value,
@@ -2537,6 +2662,44 @@ static void restore_part_field_pointers(Field **ptr, uchar **restore_ptr)
return;
}
+/*
+ This function is used to calculate the partition id where all partition
+ fields have been prepared to point to a record where the partition field
+ values are bound.
+
+ SYNOPSIS
+ get_partition_id()
+ part_info A reference to the partition_info struct where all the
+ desired information is given
+ out:part_id The partition id is returned through this pointer
+ out: func_value Value of partition function (longlong)
+
+ RETURN VALUE
+ part_id Partition id of partition that would contain
+ row with given values of PF-fields
+ HA_ERR_NO_PARTITION_FOUND The fields of the partition function didn't
+ fit into any partition and thus the values of
+ the PF-fields are not allowed.
+
+ DESCRIPTION
+ A routine used from write_row, update_row and delete_row from any
+ handler supporting partitioning. It is also a support routine for
+ get_partition_set used to find the set of partitions needed to scan
+ for a certain index scan or full table scan.
+
+ It is actually 9 different variants of this function which are called
+ through a function pointer.
+
+ get_partition_id_list
+ get_partition_id_list_col
+ get_partition_id_range
+ get_partition_id_range_col
+ get_partition_id_hash_nosub
+ get_partition_id_key_nosub
+ get_partition_id_linear_hash_nosub
+ get_partition_id_linear_key_nosub
+ get_partition_id_with_sub
+*/
/*
This function is used to calculate the main partition to use in the case of
@@ -2558,67 +2721,26 @@ static void restore_part_field_pointers(Field **ptr, uchar **restore_ptr)
DESCRIPTION
- It is actually 6 different variants of this function which are called
+ It is actually 8 different variants of this function which are called
through a function pointer.
get_partition_id_list
+ get_partition_id_list_col
get_partition_id_range
+ get_partition_id_range_col
get_partition_id_hash_nosub
get_partition_id_key_nosub
- get_partition_id_linear_hash_nosub
+ get_partition_id_linhash_nosub
get_partition_id_linear_key_nosub
*/
-static int get_part_id_charset_func_subpart(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
-{
- int res;
- copy_to_part_field_buffers(part_info->subpart_charset_field_array,
- part_info->subpart_field_buffers,
- part_info->restore_subpart_field_ptrs);
- res= part_info->get_partition_id_charset(part_info, part_id, func_value);
- restore_part_field_pointers(part_info->subpart_charset_field_array,
- part_info->restore_subpart_field_ptrs);
- return res;
-}
-
-
static int get_part_id_charset_func_part(partition_info *part_info,
uint32 *part_id,
longlong *func_value)
{
int res;
- copy_to_part_field_buffers(part_info->part_charset_field_array,
- part_info->part_field_buffers,
- part_info->restore_part_field_ptrs);
- res= part_info->get_partition_id_charset(part_info, part_id, func_value);
- restore_part_field_pointers(part_info->part_charset_field_array,
- part_info->restore_part_field_ptrs);
- return res;
-}
-
-
-static int get_part_id_charset_func_all(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
-{
- int res;
- copy_to_part_field_buffers(part_info->full_part_field_array,
- part_info->full_part_field_buffers,
- part_info->restore_full_part_field_ptrs);
- res= part_info->get_partition_id_charset(part_info, part_id, func_value);
- restore_part_field_pointers(part_info->full_part_field_array,
- part_info->restore_full_part_field_ptrs);
- return res;
-}
+ DBUG_ENTER("get_part_id_charset_func_part");
-
-static int get_part_part_id_charset_func(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
-{
- int res;
copy_to_part_field_buffers(part_info->part_charset_field_array,
part_info->part_field_buffers,
part_info->restore_part_field_ptrs);
@@ -2626,21 +2748,58 @@ static int get_part_part_id_charset_func(partition_info *part_info,
part_id, func_value);
restore_part_field_pointers(part_info->part_charset_field_array,
part_info->restore_part_field_ptrs);
- return res;
+ DBUG_RETURN(res);
}
-static int get_subpart_id_charset_func(partition_info *part_info,
- uint32 *part_id)
+static int get_part_id_charset_func_subpart(partition_info *part_info,
+ uint32 *part_id)
{
int res;
+ DBUG_ENTER("get_part_id_charset_func_subpart");
+
copy_to_part_field_buffers(part_info->subpart_charset_field_array,
part_info->subpart_field_buffers,
part_info->restore_subpart_field_ptrs);
res= part_info->get_subpartition_id_charset(part_info, part_id);
restore_part_field_pointers(part_info->subpart_charset_field_array,
part_info->restore_subpart_field_ptrs);
- return res;
+ DBUG_RETURN(res);
+}
+
+int get_partition_id_list_col(partition_info *part_info,
+ uint32 *part_id,
+ longlong *func_value)
+{
+ part_column_list_val *list_col_array= part_info->list_col_array;
+ uint no_columns= part_info->part_field_list.elements;
+ int list_index, cmp;
+ int min_list_index= 0;
+ int max_list_index= part_info->no_list_values - 1;
+ DBUG_ENTER("get_partition_id_list_col");
+
+ while (max_list_index >= min_list_index)
+ {
+ list_index= (max_list_index + min_list_index) >> 1;
+ cmp= cmp_rec_and_tuple(list_col_array + list_index*no_columns,
+ no_columns);
+ if (cmp > 0)
+ min_list_index= list_index + 1;
+ else if (cmp < 0)
+ {
+ if (!list_index)
+ goto notfound;
+ max_list_index= list_index - 1;
+ }
+ else
+ {
+ *part_id= (uint32)list_col_array[list_index].partition_id;
+ DBUG_RETURN(0);
+ }
+ }
+notfound:
+ *part_id= 0;
+ DBUG_RETURN(HA_ERR_NO_PARTITION_FOUND);
}
@@ -2735,6 +2894,44 @@ notfound:
The edge of corresponding sub-array of part_info->list_array
*/
+uint32 get_partition_id_cols_list_for_endpoint(partition_info *part_info,
+ bool left_endpoint,
+ bool include_endpoint,
+ uint32 nparts)
+{
+ part_column_list_val *list_col_array= part_info->list_col_array;
+ uint no_columns= part_info->part_field_list.elements;
+ int list_index, cmp;
+ uint min_list_index= 0;
+ uint max_list_index= part_info->no_list_values - 1;
+ bool tailf= !(left_endpoint ^ include_endpoint);
+ DBUG_ENTER("get_partition_id_cols_list_for_endpoint");
+
+ do
+ {
+ list_index= (max_list_index + min_list_index) >> 1;
+ cmp= cmp_rec_and_tuple_prune(list_col_array + list_index*no_columns,
+ nparts, tailf);
+ if (cmp > 0)
+ min_list_index= list_index + 1;
+ else if (cmp < 0)
+ {
+ if (!list_index)
+ goto notfound;
+ max_list_index= list_index - 1;
+ }
+ else
+ {
+ DBUG_RETURN(list_index + test(left_endpoint ^ include_endpoint));
+ }
+ } while (max_list_index >= min_list_index);
+notfound:
+ if (cmp > 0)
+ list_index++;
+ DBUG_RETURN(list_index);
+}
+
+
uint32 get_list_array_idx_for_endpoint_charset(partition_info *part_info,
bool left_endpoint,
bool include_endpoint)
@@ -2795,6 +2992,44 @@ notfound:
}
+int get_partition_id_range_col(partition_info *part_info,
+ uint32 *part_id,
+ longlong *func_value)
+{
+ part_column_list_val *range_col_array= part_info->range_col_array;
+ uint no_columns= part_info->part_field_list.elements;
+ uint max_partition= part_info->no_parts - 1;
+ uint min_part_id= 0;
+ uint max_part_id= max_partition;
+ uint loc_part_id;
+ DBUG_ENTER("get_partition_id_range_col");
+
+ while (max_part_id > min_part_id)
+ {
+ loc_part_id= (max_part_id + min_part_id + 1) >> 1;
+ if (cmp_rec_and_tuple(range_col_array + loc_part_id*no_columns,
+ no_columns) >= 0)
+ min_part_id= loc_part_id + 1;
+ else
+ max_part_id= loc_part_id - 1;
+ }
+ loc_part_id= max_part_id;
+ if (loc_part_id != max_partition)
+ if (cmp_rec_and_tuple(range_col_array + loc_part_id*no_columns,
+ no_columns) >= 0)
+ loc_part_id++;
+ *part_id= (uint32)loc_part_id;
+ if (loc_part_id == max_partition &&
+ (cmp_rec_and_tuple(range_col_array + loc_part_id*no_columns,
+ no_columns) >= 0))
+ DBUG_RETURN(HA_ERR_NO_PARTITION_FOUND);
+
+ DBUG_PRINT("exit",("partition: %d", *part_id));
+ DBUG_RETURN(0);
+ return 0;
+}
+
+
int get_partition_id_range(partition_info *part_info,
uint32 *part_id,
longlong *func_value)
@@ -2995,8 +3230,8 @@ int get_partition_id_key_nosub(partition_info *part_info,
int get_partition_id_linear_key_nosub(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
+ uint32 *part_id,
+ longlong *func_value)
{
*part_id= get_part_id_linear_key(part_info,
part_info->part_field_array,
@@ -3005,215 +3240,27 @@ int get_partition_id_linear_key_nosub(partition_info *part_info,
}
-int get_partition_id_range_sub_hash(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
-{
- uint32 loc_part_id, sub_part_id;
- uint no_subparts;
- longlong local_func_value;
- int error;
- DBUG_ENTER("get_partition_id_range_sub_hash");
- LINT_INIT(loc_part_id);
- LINT_INIT(sub_part_id);
-
- if (unlikely((error= get_partition_id_range(part_info, &loc_part_id,
- func_value))))
- {
- DBUG_RETURN(error);
- }
- no_subparts= part_info->no_subparts;
- if (unlikely((error= get_part_id_hash(no_subparts, part_info->subpart_expr,
- &sub_part_id, &local_func_value))))
- {
- DBUG_RETURN(error);
- }
-
- *part_id= get_part_id_for_sub(loc_part_id, sub_part_id, no_subparts);
- DBUG_RETURN(0);
-}
-
-
-int get_partition_id_range_sub_linear_hash(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
-{
- uint32 loc_part_id, sub_part_id;
- uint no_subparts;
- longlong local_func_value;
- int error;
- DBUG_ENTER("get_partition_id_range_sub_linear_hash");
- LINT_INIT(loc_part_id);
- LINT_INIT(sub_part_id);
-
- if (unlikely((error= get_partition_id_range(part_info, &loc_part_id,
- func_value))))
- {
- DBUG_RETURN(error);
- }
- no_subparts= part_info->no_subparts;
- if (unlikely((error= get_part_id_linear_hash(part_info, no_subparts,
- part_info->subpart_expr,
- &sub_part_id,
- &local_func_value))))
- {
- DBUG_RETURN(error);
- }
-
- *part_id= get_part_id_for_sub(loc_part_id, sub_part_id, no_subparts);
- DBUG_RETURN(0);
-}
-
-
-int get_partition_id_range_sub_key(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
-{
- uint32 loc_part_id, sub_part_id;
- uint no_subparts;
- longlong local_func_value;
- int error;
- DBUG_ENTER("get_partition_id_range_sub_key");
- LINT_INIT(loc_part_id);
-
- if (unlikely((error= get_partition_id_range(part_info, &loc_part_id,
- func_value))))
- {
- DBUG_RETURN(error);
- }
- no_subparts= part_info->no_subparts;
- sub_part_id= get_part_id_key(part_info->subpart_field_array,
- no_subparts, &local_func_value);
- *part_id= get_part_id_for_sub(loc_part_id, sub_part_id, no_subparts);
- DBUG_RETURN(0);
-}
-
-
-int get_partition_id_range_sub_linear_key(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
-{
- uint32 loc_part_id, sub_part_id;
- uint no_subparts;
- longlong local_func_value;
- int error;
- DBUG_ENTER("get_partition_id_range_sub_linear_key");
- LINT_INIT(loc_part_id);
-
- if (unlikely((error= get_partition_id_range(part_info, &loc_part_id,
- func_value))))
- {
- DBUG_RETURN(error);
- }
- no_subparts= part_info->no_subparts;
- sub_part_id= get_part_id_linear_key(part_info,
- part_info->subpart_field_array,
- no_subparts, &local_func_value);
- *part_id= get_part_id_for_sub(loc_part_id, sub_part_id, no_subparts);
- DBUG_RETURN(0);
-}
-
-
-int get_partition_id_list_sub_hash(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
-{
- uint32 loc_part_id, sub_part_id;
- uint no_subparts;
- longlong local_func_value;
- int error;
- DBUG_ENTER("get_partition_id_list_sub_hash");
- LINT_INIT(sub_part_id);
-
- if (unlikely((error= get_partition_id_list(part_info, &loc_part_id,
- func_value))))
- {
- DBUG_RETURN(error);
- }
- no_subparts= part_info->no_subparts;
- if (unlikely((error= get_part_id_hash(no_subparts, part_info->subpart_expr,
- &sub_part_id, &local_func_value))))
- {
- DBUG_RETURN(error);
- }
-
- *part_id= get_part_id_for_sub(loc_part_id, sub_part_id, no_subparts);
- DBUG_RETURN(0);
-}
-
-
-int get_partition_id_list_sub_linear_hash(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
-{
- uint32 loc_part_id, sub_part_id;
- uint no_subparts;
- longlong local_func_value;
- int error;
- DBUG_ENTER("get_partition_id_list_sub_linear_hash");
- LINT_INIT(sub_part_id);
-
- if (unlikely((error= get_partition_id_list(part_info, &loc_part_id,
- func_value))))
- {
- DBUG_RETURN(error);
- }
- no_subparts= part_info->no_subparts;
- if (unlikely((error= get_part_id_linear_hash(part_info, no_subparts,
- part_info->subpart_expr,
- &sub_part_id,
- &local_func_value))))
- {
- DBUG_RETURN(error);
- }
-
- *part_id= get_part_id_for_sub(loc_part_id, sub_part_id, no_subparts);
- DBUG_RETURN(0);
-}
-
-
-int get_partition_id_list_sub_key(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
+int get_partition_id_with_sub(partition_info *part_info,
+ uint32 *part_id,
+ longlong *func_value)
{
uint32 loc_part_id, sub_part_id;
uint no_subparts;
- longlong local_func_value;
int error;
- DBUG_ENTER("get_partition_id_range_sub_key");
+ DBUG_ENTER("get_partition_id_with_sub");
- if (unlikely((error= get_partition_id_list(part_info, &loc_part_id,
- func_value))))
+ if (unlikely((error= part_info->get_part_partition_id(part_info,
+ &loc_part_id,
+ func_value))))
{
DBUG_RETURN(error);
}
no_subparts= part_info->no_subparts;
- sub_part_id= get_part_id_key(part_info->subpart_field_array,
- no_subparts, &local_func_value);
- *part_id= get_part_id_for_sub(loc_part_id, sub_part_id, no_subparts);
- DBUG_RETURN(0);
-}
-
-
-int get_partition_id_list_sub_linear_key(partition_info *part_info,
- uint32 *part_id,
- longlong *func_value)
-{
- uint32 loc_part_id, sub_part_id;
- uint no_subparts;
- longlong local_func_value;
- int error;
- DBUG_ENTER("get_partition_id_list_sub_linear_key");
-
- if (unlikely((error= get_partition_id_list(part_info, &loc_part_id,
- func_value))))
+ if (unlikely((error= part_info->get_subpartition_id(part_info,
+ &sub_part_id))))
{
DBUG_RETURN(error);
- }
- no_subparts= part_info->no_subparts;
- sub_part_id= get_part_id_linear_key(part_info,
- part_info->subpart_field_array,
- no_subparts, &local_func_value);
+ }
*part_id= get_part_id_for_sub(loc_part_id, sub_part_id, no_subparts);
DBUG_RETURN(0);
}
@@ -4226,6 +4273,11 @@ uint prep_alter_part_table(THD *thd, TABLE *table, Alter_info *alter_info,
partition_info *tab_part_info= table->part_info;
partition_info *alt_part_info= thd->work_part_info;
uint flags= 0;
+ bool is_last_partition_reorged;
+ part_elem_value *tab_max_elem_val= NULL;
+ part_elem_value *alt_max_elem_val= NULL;
+ longlong tab_max_range= 0, alt_max_range= 0;
+
if (!tab_part_info)
{
my_error(ER_PARTITION_MGMT_ON_NONPARTITIONED, MYF(0));
@@ -4280,34 +4332,43 @@ uint prep_alter_part_table(THD *thd, TABLE *table, Alter_info *alter_info,
((flags & (HA_FAST_CHANGE_PARTITION | HA_PARTITION_ONE_PHASE)) != 0);
DBUG_PRINT("info", ("*fast_alter_partition: %d flags: 0x%x",
*fast_alter_partition, flags));
- if (((alter_info->flags & ALTER_ADD_PARTITION) ||
- (alter_info->flags & ALTER_REORGANIZE_PARTITION)) &&
- (thd->work_part_info->part_type != tab_part_info->part_type) &&
- (thd->work_part_info->part_type != NOT_A_PARTITION))
+ if ((alter_info->flags & ALTER_ADD_PARTITION) ||
+ (alter_info->flags & ALTER_REORGANIZE_PARTITION))
{
- if (thd->work_part_info->part_type == RANGE_PARTITION)
- {
- my_error(ER_PARTITION_WRONG_VALUES_ERROR, MYF(0),
- "RANGE", "LESS THAN");
- }
- else if (thd->work_part_info->part_type == LIST_PARTITION)
+ if ((tab_part_info->column_list &&
+ alt_part_info->num_columns != tab_part_info->num_columns) ||
+ (!tab_part_info->column_list && alt_part_info->num_columns))
{
- DBUG_ASSERT(thd->work_part_info->part_type == LIST_PARTITION);
- my_error(ER_PARTITION_WRONG_VALUES_ERROR, MYF(0),
- "LIST", "IN");
- }
- else if (tab_part_info->part_type == RANGE_PARTITION)
- {
- my_error(ER_PARTITION_REQUIRES_VALUES_ERROR, MYF(0),
- "RANGE", "LESS THAN");
+ my_error(ER_PARTITION_COLUMN_LIST_ERROR, MYF(0));
+ DBUG_RETURN(TRUE);
}
- else
+ if ((thd->work_part_info->part_type != tab_part_info->part_type) &&
+ (thd->work_part_info->part_type != NOT_A_PARTITION))
{
- DBUG_ASSERT(tab_part_info->part_type == LIST_PARTITION);
- my_error(ER_PARTITION_REQUIRES_VALUES_ERROR, MYF(0),
- "LIST", "IN");
+ if (thd->work_part_info->part_type == RANGE_PARTITION)
+ {
+ my_error(ER_PARTITION_WRONG_VALUES_ERROR, MYF(0),
+ "RANGE", "LESS THAN");
+ }
+ else if (thd->work_part_info->part_type == LIST_PARTITION)
+ {
+ DBUG_ASSERT(thd->work_part_info->part_type == LIST_PARTITION);
+ my_error(ER_PARTITION_WRONG_VALUES_ERROR, MYF(0),
+ "LIST", "IN");
+ }
+ else if (tab_part_info->part_type == RANGE_PARTITION)
+ {
+ my_error(ER_PARTITION_REQUIRES_VALUES_ERROR, MYF(0),
+ "RANGE", "LESS THAN");
+ }
+ else
+ {
+ DBUG_ASSERT(tab_part_info->part_type == LIST_PARTITION);
+ my_error(ER_PARTITION_REQUIRES_VALUES_ERROR, MYF(0),
+ "LIST", "IN");
+ }
+ DBUG_RETURN(TRUE);
}
- DBUG_RETURN(TRUE);
}
if (alter_info->flags & ALTER_ADD_PARTITION)
{
@@ -4747,7 +4808,6 @@ state of p1.
*/
uint no_parts_reorged= alter_info->partition_names.elements;
uint no_parts_new= thd->work_part_info->partitions.elements;
- partition_info *alt_part_info= thd->work_part_info;
uint check_total_partitions;
tab_part_info->is_auto_partitioned= FALSE;
@@ -4827,9 +4887,7 @@ the generated partition syntax in a correct manner.
uint part_count= 0;
bool found_first= FALSE;
bool found_last= FALSE;
- bool is_last_partition_reorged;
uint drop_count= 0;
- longlong tab_max_range= 0, alt_max_range= 0;
do
{
partition_element *part_elem= tab_it++;
@@ -4839,7 +4897,13 @@ the generated partition syntax in a correct manner.
{
is_last_partition_reorged= TRUE;
drop_count++;
- tab_max_range= part_elem->range_value;
+ if (tab_part_info->column_list)
+ {
+ List_iterator<part_elem_value> p(part_elem->list_val_list);
+ tab_max_elem_val= p++;
+ }
+ else
+ tab_max_range= part_elem->range_value;
if (*fast_alter_partition &&
tab_part_info->temp_partitions.push_back(part_elem))
{
@@ -4851,13 +4915,21 @@ the generated partition syntax in a correct manner.
if (!found_first)
{
uint alt_part_count= 0;
- found_first= TRUE;
+ partition_element *alt_part_elem;
List_iterator<partition_element>
alt_it(alt_part_info->partitions);
+ found_first= TRUE;
do
{
- partition_element *alt_part_elem= alt_it++;
- alt_max_range= alt_part_elem->range_value;
+ alt_part_elem= alt_it++;
+ if (tab_part_info->column_list)
+ {
+ List_iterator<part_elem_value> p(alt_part_elem->list_val_list);
+ alt_max_elem_val= p++;
+ }
+ else
+ alt_max_range= alt_part_elem->range_value;
+
if (*fast_alter_partition)
alt_part_elem->part_state= PART_TO_BE_ADDED;
if (alt_part_count == 0)
@@ -4885,25 +4957,6 @@ the generated partition syntax in a correct manner.
my_error(ER_DROP_PARTITION_NON_EXISTENT, MYF(0), "REORGANIZE");
DBUG_RETURN(TRUE);
}
- if (tab_part_info->part_type == RANGE_PARTITION &&
- ((is_last_partition_reorged &&
- alt_max_range < tab_max_range) ||
- (!is_last_partition_reorged &&
- alt_max_range != tab_max_range)))
- {
- /*
- For range partitioning the total resulting range before and
- after the change must be the same except in one case. This is
- when the last partition is reorganised, in this case it is
- acceptable to increase the total range.
- The reason is that it is not allowed to have "holes" in the
- middle of the ranges and thus we should not allow to reorganise
- to create "holes". Also we should not allow using REORGANIZE
- to drop data.
- */
- my_error(ER_REORG_OUTSIDE_RANGE, MYF(0));
- DBUG_RETURN(TRUE);
- }
tab_part_info->no_parts= check_total_partitions;
}
}
@@ -4923,8 +4976,40 @@ the generated partition syntax in a correct manner.
tab_part_info->use_default_no_subpartitions= FALSE;
}
if (tab_part_info->check_partition_info(thd, (handlerton**)NULL,
- table->file, ULL(0), FALSE))
+ table->file, ULL(0), TRUE))
+ {
+ DBUG_RETURN(TRUE);
+ }
+ /*
+ The check below needs to be performed after check_partition_info
+ since this function "fixes" the item trees of the new partitions
+ to reorganize into
+ */
+ if (alter_info->flags == ALTER_REORGANIZE_PARTITION &&
+ tab_part_info->part_type == RANGE_PARTITION &&
+ ((is_last_partition_reorged &&
+ (tab_part_info->column_list ?
+ (tab_part_info->compare_column_values(
+ alt_max_elem_val->col_val_array,
+ tab_max_elem_val->col_val_array) < 0) :
+ alt_max_range < tab_max_range)) ||
+ (!is_last_partition_reorged &&
+ (tab_part_info->column_list ?
+ (tab_part_info->compare_column_values(
+ alt_max_elem_val->col_val_array,
+ tab_max_elem_val->col_val_array) != 0) :
+ alt_max_range != tab_max_range))))
{
+ /*
+ For range partitioning the total resulting range before and
+ after the change must be the same except in one case. This is
+ when the last partition is reorganised, in this case it is
+ acceptable to increase the total range.
+ The reason is that it is not allowed to have "holes" in the
+ middle of the ranges and thus we should not allow to reorganise
+ to create "holes".
+ */
+ my_error(ER_REORG_OUTSIDE_RANGE, MYF(0));
DBUG_RETURN(TRUE);
}
}
@@ -6565,16 +6650,19 @@ void make_used_partitions_str(partition_info *part_info, String *parts_str)
IMPLEMENTATION
There are two available interval analyzer functions:
(1) get_part_iter_for_interval_via_mapping
- (2) get_part_iter_for_interval_via_walking
+ (2) get_part_iter_for_interval_cols_via_map
+ (3) get_part_iter_for_interval_via_walking
They both have limited applicability:
(1) is applicable for "PARTITION BY <RANGE|LIST>(func(t.field))", where
func is a monotonic function.
-
- (2) is applicable for
+
+ (2) is applicable for "PARTITION BY <RANGE|LIST> COLUMN_LIST (field_list)
+
+ (3) is applicable for
"[SUB]PARTITION BY <any-partitioning-type>(any_func(t.integer_field))"
- If both are applicable, (1) is preferred over (2).
+ If both (1) and (3) are applicable, (1) is preferred over (3).
This function sets part_info::get_part_iter_for_interval according to
this criteria, and also sets some auxilary fields that the function
@@ -6594,10 +6682,19 @@ static void set_up_range_analysis_info(partition_info *part_info)
switch (part_info->part_type) {
case RANGE_PARTITION:
case LIST_PARTITION:
- if (part_info->part_expr->get_monotonicity_info() != NON_MONOTONIC)
+ if (!part_info->column_list)
+ {
+ if (part_info->part_expr->get_monotonicity_info() != NON_MONOTONIC)
+ {
+ part_info->get_part_iter_for_interval=
+ get_part_iter_for_interval_via_mapping;
+ goto setup_subparts;
+ }
+ }
+ else
{
part_info->get_part_iter_for_interval=
- get_part_iter_for_interval_via_mapping;
+ get_part_iter_for_interval_cols_via_map;
goto setup_subparts;
}
default:
@@ -6648,9 +6745,104 @@ setup_subparts:
}
+/* TODO Commenting those functions */
+uint32 store_tuple_to_record(Field **pfield,
+ uint32 *store_length_array,
+ uchar *value,
+ uchar *value_end)
+{
+ // see store_key_image_to_rec
+ uint32 nparts= 0;
+ uchar *loc_value;
+ while (value < value_end)
+ {
+ loc_value= value;
+ if ((*pfield)->real_maybe_null())
+ {
+ if (*loc_value)
+ {
+ (*pfield)->set_null();
+ }
+ (*pfield)->set_notnull();
+ loc_value++;
+ }
+ uint len= (*pfield)->pack_length();
+ (*pfield)->set_key_image(loc_value, len);
+ value+= *store_length_array;
+ store_length_array++;
+ nparts++;
+ pfield++;
+ }
+ return nparts;
+}
+
+/*
+ RANGE(columns) partitioning: compare value bound and probe tuple.
+
+ The value bound always is a full tuple (but may include MIN_VALUE and
+ MAX_VALUE special values).
+
+ The probe tuple may be a prefix of partitioning tuple. The tail_is_min
+ parameter specifies whether the suffix components should be assumed to
+ hold MIN_VALUE or MAX_VALUE
+*/
+
+static int cmp_rec_and_tuple(part_column_list_val *val, uint32 nvals_in_rec)
+{
+ partition_info *part_info= val->part_info;
+ Field **field= part_info->part_field_array;
+ Field **fields_end= field + nvals_in_rec;
+ int res;
+
+ for (; field != fields_end; field++, val++)
+ {
+ if (val->max_value)
+ return -1;
+ if ((*field)->is_null())
+ {
+ if (val->null_value)
+ continue;
+ return -1;
+ }
+ if (val->null_value)
+ return +1;
+ res= (*field)->cmp((const uchar*)val->column_value);
+ if (res)
+ return res;
+ }
+ return 0;
+}
+
+
+static int cmp_rec_and_tuple_prune(part_column_list_val *val,
+ uint32 n_vals_in_rec,
+ bool tail_is_min)
+{
+ int cmp;
+ Field **field;
+ partition_info *part_info;
+ if ((cmp= cmp_rec_and_tuple(val, n_vals_in_rec)))
+ return cmp;
+ part_info= val->part_info;
+ field= part_info->part_field_array + n_vals_in_rec;
+ for (; *field; field++, val++)
+ {
+ if (tail_is_min)
+ return -1;
+ if (!tail_is_min && !val->max_value)
+ return +1;
+ }
+ return 0;
+}
+
+
typedef uint32 (*get_endpoint_func)(partition_info*, bool left_endpoint,
bool include_endpoint);
+typedef uint32 (*get_col_endpoint_func)(partition_info*, bool left_endpoint,
+ bool include_endpoint,
+ uint32 no_parts);
+
/*
Partitioning Interval Analysis: Initialize the iterator for "mapping" case
@@ -6686,17 +6878,132 @@ typedef uint32 (*get_endpoint_func)(partition_info*, bool left_endpoint,
-1 - All partitions would match (iterator not initialized)
*/
+uint32 get_partition_id_cols_range_for_endpoint(partition_info *part_info,
+ bool left_endpoint,
+ bool include_endpoint,
+ uint32 nparts)
+{
+ uint max_partition= part_info->no_parts - 1;
+ uint min_part_id= 0, max_part_id= max_partition, loc_part_id;
+ part_column_list_val *range_col_array= part_info->range_col_array;
+ uint no_columns= part_info->part_field_list.elements;
+ bool tailf= !(left_endpoint ^ include_endpoint);
+ DBUG_ENTER("get_partition_id_cols_range_for_endpoint");
+
+ /* Get the partitioning function value for the endpoint */
+ while (max_part_id > min_part_id)
+ {
+ loc_part_id= (max_part_id + min_part_id + 1) >> 1;
+ if (cmp_rec_and_tuple_prune(range_col_array + loc_part_id*no_columns,
+ nparts, tailf) >= 0)
+ min_part_id= loc_part_id + 1;
+ else
+ max_part_id= loc_part_id - 1;
+ }
+ loc_part_id= max_part_id;
+ if (loc_part_id < max_partition &&
+ cmp_rec_and_tuple_prune(range_col_array + (loc_part_id+1)*no_columns,
+ nparts, tailf) >= 0
+ )
+ {
+ loc_part_id++;
+ }
+ if (left_endpoint)
+ {
+ if (cmp_rec_and_tuple_prune(range_col_array + loc_part_id*no_columns,
+ nparts, tailf) >= 0)
+ loc_part_id++;
+ }
+ else
+ {
+ if (loc_part_id < max_partition)
+ {
+ int res= cmp_rec_and_tuple_prune(range_col_array +
+ loc_part_id * no_columns,
+ nparts, tailf);
+ if (!res)
+ loc_part_id += test(include_endpoint);
+ else if (res > 0)
+ loc_part_id++;
+ }
+ loc_part_id++;
+ }
+ DBUG_RETURN(loc_part_id);
+}
+
+
+int get_part_iter_for_interval_cols_via_map(partition_info *part_info,
+ bool is_subpart,
+ uint32 *store_length_array,
+ uchar *min_value, uchar *max_value,
+ uint min_len, uint max_len,
+ uint flags,
+ PARTITION_ITERATOR *part_iter)
+{
+ uint32 nparts;
+ get_col_endpoint_func get_col_endpoint;
+ DBUG_ENTER("get_part_iter_for_interval_cols_via_map");
+
+ if (part_info->part_type == RANGE_PARTITION)
+ {
+ get_col_endpoint= get_partition_id_cols_range_for_endpoint;
+ part_iter->get_next= get_next_partition_id_range;
+ }
+ else
+ {
+ get_col_endpoint= get_partition_id_cols_list_for_endpoint;
+ part_iter->get_next= get_next_partition_id_list;
+ part_iter->part_info= part_info;
+ }
+ if (flags & NO_MIN_RANGE)
+ part_iter->part_nums.start= part_iter->part_nums.cur= 0;
+ else
+ {
+ // Copy from min_value to record
+ nparts= store_tuple_to_record(part_info->part_field_array,
+ store_length_array,
+ min_value,
+ min_value + min_len);
+ part_iter->part_nums.start= part_iter->part_nums.cur=
+ get_col_endpoint(part_info, TRUE, !(flags & NEAR_MIN),
+ nparts);
+ }
+ if (flags & NO_MAX_RANGE)
+ part_iter->part_nums.end= part_info->no_parts;
+ else
+ {
+ // Copy from max_value to record
+ nparts= store_tuple_to_record(part_info->part_field_array,
+ store_length_array,
+ max_value,
+ max_value + max_len);
+ part_iter->part_nums.end= get_col_endpoint(part_info, FALSE,
+ !(flags & NEAR_MAX),
+ nparts);
+ }
+ if (part_iter->part_nums.start == part_iter->part_nums.end)
+ DBUG_RETURN(0);
+ DBUG_RETURN(1);
+}
+
+
int get_part_iter_for_interval_via_mapping(partition_info *part_info,
bool is_subpart,
+ uint32 *store_length_array, /* ignored */
uchar *min_value, uchar *max_value,
+ uint min_len, uint max_len, /* ignored */
uint flags,
PARTITION_ITERATOR *part_iter)
{
- DBUG_ASSERT(!is_subpart);
Field *field= part_info->part_field_array[0];
uint32 max_endpoint_val;
get_endpoint_func get_endpoint;
uint field_len= field->pack_length_in_rec();
+ DBUG_ENTER("get_part_iter_for_interval_via_mapping");
+ DBUG_ASSERT(!is_subpart);
+ (void) store_length_array;
+ (void)min_len;
+ (void)max_len;
part_iter->ret_null_part= part_iter->ret_null_part_orig= FALSE;
if (part_info->part_type == RANGE_PARTITION)
@@ -6728,7 +7035,7 @@ int get_part_iter_for_interval_via_mapping(partition_info *part_info,
part_iter->part_nums.start= part_iter->part_nums.end= 0;
part_iter->part_nums.cur= 0;
part_iter->ret_null_part= part_iter->ret_null_part_orig= TRUE;
- return -1;
+ DBUG_RETURN(-1);
}
}
else
@@ -6747,7 +7054,7 @@ int get_part_iter_for_interval_via_mapping(partition_info *part_info,
{
/* The right bound is X <= NULL, i.e. it is a "X IS NULL" interval */
part_iter->part_nums.end= 0;
- return 1;
+ DBUG_RETURN(1);
}
}
else
@@ -6767,7 +7074,7 @@ int get_part_iter_for_interval_via_mapping(partition_info *part_info,
part_iter->part_nums.start= get_endpoint(part_info, 1, include_endp);
part_iter->part_nums.cur= part_iter->part_nums.start;
if (part_iter->part_nums.start == max_endpoint_val)
- return 0; /* No partitions */
+ DBUG_RETURN(0); /* No partitions */
}
}
@@ -6781,9 +7088,9 @@ int get_part_iter_for_interval_via_mapping(partition_info *part_info,
part_iter->part_nums.end= get_endpoint(part_info, 0, include_endp);
if (part_iter->part_nums.start >= part_iter->part_nums.end &&
!part_iter->ret_null_part)
- return 0; /* No partitions */
+ DBUG_RETURN(0); /* No partitions */
}
- return 1; /* Ok, iterator initialized */
+ DBUG_RETURN(1); /* Ok, iterator initialized */
}
@@ -6841,14 +7148,21 @@ int get_part_iter_for_interval_via_mapping(partition_info *part_info,
*/
int get_part_iter_for_interval_via_walking(partition_info *part_info,
- bool is_subpart,
- uchar *min_value, uchar *max_value,
- uint flags,
- PARTITION_ITERATOR *part_iter)
+ bool is_subpart,
+ uint32 *store_length_array, /* ignored */
+ uchar *min_value, uchar *max_value,
+ uint min_len, uint max_len, /* ignored */
+ uint flags,
+ PARTITION_ITERATOR *part_iter)
{
Field *field;
uint total_parts;
partition_iter_func get_next_func;
+ DBUG_ENTER("get_part_iter_for_interval_via_walking");
+ (void)store_length_array;
+ (void)min_len;
+ (void)max_len;
+
if (is_subpart)
{
field= part_info->subpart_field_array[0];
@@ -6878,7 +7192,7 @@ int get_part_iter_for_interval_via_walking(partition_info *part_info,
if (!part_info->get_subpartition_id(part_info, &part_id))
{
init_single_partition_iterator(part_id, part_iter);
- return 1; /* Ok, iterator initialized */
+ DBUG_RETURN(1); /* Ok, iterator initialized */
}
}
else
@@ -6891,10 +7205,10 @@ int get_part_iter_for_interval_via_walking(partition_info *part_info,
if (!res)
{
init_single_partition_iterator(part_id, part_iter);
- return 1; /* Ok, iterator initialized */
+ DBUG_RETURN(1); /* Ok, iterator initialized */
}
}
- return 0; /* No partitions match */
+ DBUG_RETURN(0); /* No partitions match */
}
if ((field->real_maybe_null() &&
@@ -6902,7 +7216,7 @@ int get_part_iter_for_interval_via_walking(partition_info *part_info,
(!(flags & NO_MAX_RANGE) && *max_value))) || // X <? NULL
(flags & (NO_MIN_RANGE | NO_MAX_RANGE))) // -inf at any bound
{
- return -1; /* Can't handle this interval, have to use all partitions */
+ DBUG_RETURN(-1); /* Can't handle this interval, have to use all partitions */
}
/* Get integers for left and right interval bound */
@@ -6921,20 +7235,20 @@ int get_part_iter_for_interval_via_walking(partition_info *part_info,
an empty interval by "wrapping around" a + 4G-1 + 1 = a.
*/
if ((ulonglong)b - (ulonglong)a == ~0ULL)
- return -1;
+ DBUG_RETURN(-1);
a += test(flags & NEAR_MIN);
b += test(!(flags & NEAR_MAX));
ulonglong n_values= b - a;
if (n_values > total_parts || n_values > MAX_RANGE_TO_WALK)
- return -1;
+ DBUG_RETURN(-1);
part_iter->field_vals.start= part_iter->field_vals.cur= a;
part_iter->field_vals.end= b;
part_iter->part_info= part_info;
part_iter->get_next= get_next_func;
- return 1;
+ DBUG_RETURN(1);
}
@@ -6976,8 +7290,9 @@ uint32 get_next_partition_id_range(PARTITION_ITERATOR* part_iter)
DESCRIPTION
This implementation of PARTITION_ITERATOR::get_next() is special for
- LIST partitioning: it enumerates partition ids in
- part_info->list_array[i] where i runs over [min_idx, max_idx] interval.
+ LIST partitioning: it enumerates partition ids in
+ part_info->list_array[i] (list_col_array[i] for COLUMN_LIST LIST
+ partitioning) where i runs over [min_idx, max_idx] interval.
The function conforms to partition_iter_func type.
RETURN
@@ -6999,8 +7314,13 @@ uint32 get_next_partition_id_list(PARTITION_ITERATOR *part_iter)
return NOT_A_PARTITION_ID;
}
else
- return part_iter->part_info->list_array[part_iter->
- part_nums.cur++].partition_id;
+ {
+ partition_info *part_info= part_iter->part_info;
+ uint32 num_part= part_iter->part_nums.cur++;
+ return part_info->column_list ?
+ part_info->list_col_array[num_part].partition_id :
+ part_info->list_array[num_part].partition_id;
+ }
}
diff --git a/sql/sql_partition.h b/sql/sql_partition.h
index 282e24f1853..7902cc77877 100644
--- a/sql/sql_partition.h
+++ b/sql/sql_partition.h
@@ -173,9 +173,12 @@ typedef struct st_partition_iter
SYNOPSIS
get_partitions_in_range_iter()
part_info Partitioning info
- is_subpart
+ is_subpart
+ store_length_array Length of fields packed in opt_range_key format
min_val Left edge, field value in opt_range_key format.
- max_val Right edge, field value in opt_range_key format.
+ max_val Right edge, field value in opt_range_key format.
+ min_len Length of minimum value
+ max_len Length of maximum value
flags Some combination of NEAR_MIN, NEAR_MAX, NO_MIN_RANGE,
NO_MAX_RANGE.
part_iter Iterator structure to be initialized
@@ -191,8 +194,9 @@ typedef struct st_partition_iter
The set of partitions is returned by initializing an iterator in *part_iter
NOTES
- There are currently two functions of this type:
+ There are currently three functions of this type:
- get_part_iter_for_interval_via_walking
+ - get_part_iter_for_interval_cols_via_map
- get_part_iter_for_interval_via_mapping
RETURN
@@ -203,7 +207,9 @@ typedef struct st_partition_iter
typedef int (*get_partitions_in_range_iter)(partition_info *part_info,
bool is_subpart,
+ uint32 *store_length_array,
uchar *min_val, uchar *max_val,
+ uint min_len, uint max_len,
uint flags,
PARTITION_ITERATOR *part_iter);
diff --git a/sql/sql_show.cc b/sql/sql_show.cc
index 5c2c351652b..3aef62dfb31 100644
--- a/sql/sql_show.cc
+++ b/sql/sql_show.cc
@@ -4869,12 +4869,18 @@ static int get_schema_partitions_record(THD *thd, TABLE_LIST *tables,
/* Partition method*/
switch (part_info->part_type) {
case RANGE_PARTITION:
- table->field[7]->store(partition_keywords[PKW_RANGE].str,
- partition_keywords[PKW_RANGE].length, cs);
- break;
case LIST_PARTITION:
- table->field[7]->store(partition_keywords[PKW_LIST].str,
- partition_keywords[PKW_LIST].length, cs);
+ tmp_res.length(0);
+ if (part_info->part_type == RANGE_PARTITION)
+ tmp_res.append(partition_keywords[PKW_RANGE].str,
+ partition_keywords[PKW_RANGE].length);
+ else
+ tmp_res.append(partition_keywords[PKW_LIST].str,
+ partition_keywords[PKW_LIST].length);
+ if (part_info->column_list)
+ tmp_res.append(partition_keywords[PKW_COLUMNS].str,
+ partition_keywords[PKW_COLUMNS].length);
+ table->field[7]->store(tmp_res.ptr(), tmp_res.length(), cs);
break;
case HASH_PARTITION:
tmp_res.length(0);
@@ -6484,7 +6490,7 @@ ST_FIELD_INFO partitions_fields_info[]=
(MY_I_S_MAYBE_NULL | MY_I_S_UNSIGNED), 0, OPEN_FULL_TABLE},
{"SUBPARTITION_ORDINAL_POSITION", 21 , MYSQL_TYPE_LONGLONG, 0,
(MY_I_S_MAYBE_NULL | MY_I_S_UNSIGNED), 0, OPEN_FULL_TABLE},
- {"PARTITION_METHOD", 12, MYSQL_TYPE_STRING, 0, 1, 0, OPEN_FULL_TABLE},
+ {"PARTITION_METHOD", 18, MYSQL_TYPE_STRING, 0, 1, 0, OPEN_FULL_TABLE},
{"SUBPARTITION_METHOD", 12, MYSQL_TYPE_STRING, 0, 1, 0, OPEN_FULL_TABLE},
{"PARTITION_EXPRESSION", 65535, MYSQL_TYPE_STRING, 0, 1, 0, OPEN_FULL_TABLE},
{"SUBPARTITION_EXPRESSION", 65535, MYSQL_TYPE_STRING, 0, 1, 0,
diff --git a/sql/sql_table.cc b/sql/sql_table.cc
index 81d00f46000..fce51c7e3da 100644
--- a/sql/sql_table.cc
+++ b/sql/sql_table.cc
@@ -3664,7 +3664,7 @@ bool mysql_create_table_no_lock(THD *thd,
ha_resolve_storage_engine_name(part_info->default_engine_type),
ha_resolve_storage_engine_name(create_info->db_type)));
if (part_info->check_partition_info(thd, &engine_type, file,
- create_info, TRUE))
+ create_info, FALSE))
goto err;
part_info->default_engine_type= engine_type;
diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index 4ed9946a334..0e0e3ec6bd3 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -515,10 +515,10 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
%pure_parser /* We have threads */
/*
- Currently there are 169 shift/reduce conflicts.
+ Currently there are 168 shift/reduce conflicts.
We should not introduce new conflicts any more.
*/
-%expect 169
+%expect 168
/*
Comments for TOKENS.
@@ -603,6 +603,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
%token COLLATE_SYM /* SQL-2003-R */
%token COLLATION_SYM /* SQL-2003-N */
%token COLUMNS
+%token COLUMN_LIST_SYM
%token COLUMN_SYM /* SQL-2003-R */
%token COMMENT_SYM
%token COMMITTED_SYM /* SQL-2003-N */
@@ -1156,6 +1157,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
opt_natural_language_mode opt_query_expansion
opt_ev_status opt_ev_on_completion ev_on_completion opt_ev_comment
ev_alter_on_schedule_completion opt_ev_rename_to opt_ev_sql_stmt
+ opt_global
%type <ulong_num>
ulong_num real_ulong_num merge_insert_types
@@ -1298,6 +1300,8 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
view_check_option trigger_tail sp_tail sf_tail udf_tail event_tail
install uninstall partition_entry binlog_base64_event
init_key_options key_options key_opts key_opt key_using_alg
+ part_column_list part_column_expr_list part_column_expr_item
+ part_column_list_value
server_def server_options_list server_option
definer_opt no_definer definer
END_OF_INPUT
@@ -1691,12 +1695,12 @@ create:
$5->table.str);
}
}
- | CREATE opt_unique_or_fulltext INDEX_SYM ident key_alg ON
+ | CREATE opt_global opt_unique_or_fulltext INDEX_SYM ident key_alg ON
table_ident
{
LEX *lex=Lex;
lex->sql_command= SQLCOM_CREATE_INDEX;
- if (!lex->current_select->add_table_to_list(lex->thd, $7,
+ if (!lex->current_select->add_table_to_list(lex->thd, $8,
NULL,
TL_OPTION_UPDATING))
MYSQL_YYABORT;
@@ -1704,6 +1708,7 @@ create:
lex->alter_info.flags= ALTER_ADD_INDEX;
lex->col_list.empty();
lex->change=NullS;
+ lex->global_flag= $2;
}
'(' key_list ')' key_options
{
@@ -1714,13 +1719,22 @@ create:
my_parse_error(ER(ER_SYNTAX_ERROR));
MYSQL_YYABORT;
}
- key= new Key($2, $4.str, &lex->key_create_info, 0,
+ key= new Key($3, $5.str, &lex->key_create_info, 0,
lex->col_list);
if (key == NULL)
MYSQL_YYABORT;
lex->alter_info.key_list.push_back(key);
lex->col_list.empty();
}
+ opt_partitioning
+ {
+ LEX *lex= Lex;
+ if (!lex->global_flag && lex->part_info)
+ {
+ my_error(ER_GLOBAL_PARTITION_INDEX_ERROR, MYF(0));
+ YYABORT;
+ }
+ }
| CREATE DATABASE opt_if_not_exists ident
{
Lex->create_info.default_table_charset= NULL;
@@ -3802,19 +3816,21 @@ partition:
part_type_def:
opt_linear KEY_SYM '(' part_field_list ')'
{
- LEX *lex= Lex;
- lex->part_info->list_of_part_fields= TRUE;
- lex->part_info->part_type= HASH_PARTITION;
+ partition_info *part_info= Lex->part_info;
+ part_info->list_of_part_fields= TRUE;
+ part_info->part_type= HASH_PARTITION;
}
| opt_linear HASH_SYM
{ Lex->part_info->part_type= HASH_PARTITION; }
part_func {}
- | RANGE_SYM
+ | RANGE_SYM part_func
{ Lex->part_info->part_type= RANGE_PARTITION; }
- part_func {}
- | LIST_SYM
+ | RANGE_SYM part_column_list
+ { Lex->part_info->part_type= RANGE_PARTITION; }
+ | LIST_SYM part_func
+ { Lex->part_info->part_type= LIST_PARTITION; }
+ | LIST_SYM part_column_list
{ Lex->part_info->part_type= LIST_PARTITION; }
- part_func {}
;
opt_linear:
@@ -3836,41 +3852,45 @@ part_field_item_list:
part_field_item:
ident
{
- if (Lex->part_info->part_field_list.push_back($1.str))
+ partition_info *part_info= Lex->part_info;
+ part_info->num_columns++;
+ if (part_info->part_field_list.push_back($1.str))
{
mem_alloc_error(1);
MYSQL_YYABORT;
}
+ if (part_info->num_columns > MAX_REF_PARTS)
+ {
+ my_error(ER_TOO_MANY_PARTITION_FUNC_FIELDS_ERROR, MYF(0),
+ "list of partition fields");
+ MYSQL_YYABORT;
+ }
}
;
+part_column_list:
+ COLUMN_LIST_SYM '(' part_field_list ')'
+ {
+ partition_info *part_info= Lex->part_info;
+ part_info->column_list= TRUE;
+ part_info->list_of_part_fields= TRUE;
+ }
+ ;
+
+
part_func:
'(' remember_name part_func_expr remember_end ')'
{
- LEX *lex= Lex;
- uint expr_len= (uint)($4 - $2) - 1;
- lex->part_info->list_of_part_fields= FALSE;
- lex->part_info->part_expr= $3;
- char *func_string= (char*) sql_memdup($2+1, expr_len);
- if (func_string == NULL)
- MYSQL_YYABORT;
- lex->part_info->part_func_string= func_string;
- lex->part_info->part_func_len= expr_len;
+ if (Lex->part_info->set_part_expr($2+1, $3, $4, FALSE))
+ { MYSQL_YYABORT; }
}
;
sub_part_func:
'(' remember_name part_func_expr remember_end ')'
{
- LEX *lex= Lex;
- uint expr_len= (uint)($4 - $2) - 1;
- lex->part_info->list_of_subpart_fields= FALSE;
- lex->part_info->subpart_expr= $3;
- char *func_string= (char*) sql_memdup($2+1, expr_len);
- if (func_string == NULL)
- MYSQL_YYABORT;
- lex->part_info->subpart_func_string= func_string;
- lex->part_info->subpart_func_len= expr_len;
+ if (Lex->part_info->set_part_expr($2+1, $3, $4, TRUE))
+ { MYSQL_YYABORT; }
}
;
@@ -3880,15 +3900,15 @@ opt_no_parts:
| PARTITIONS_SYM real_ulong_num
{
uint no_parts= $2;
- LEX *lex= Lex;
+ partition_info *part_info= Lex->part_info;
if (no_parts == 0)
{
my_error(ER_NO_PARTS_ERROR, MYF(0), "partitions");
MYSQL_YYABORT;
}
- lex->part_info->no_parts= no_parts;
- lex->part_info->use_default_no_partitions= FALSE;
+ part_info->no_parts= no_parts;
+ part_info->use_default_no_partitions= FALSE;
}
;
@@ -3900,9 +3920,9 @@ opt_sub_part:
| SUBPARTITION_SYM BY opt_linear KEY_SYM
'(' sub_part_field_list ')'
{
- LEX *lex= Lex;
- lex->part_info->subpart_type= HASH_PARTITION;
- lex->part_info->list_of_subpart_fields= TRUE;
+ partition_info *part_info= Lex->part_info;
+ part_info->subpart_type= HASH_PARTITION;
+ part_info->list_of_subpart_fields= TRUE;
}
opt_no_subparts {}
;
@@ -3915,11 +3935,18 @@ sub_part_field_list:
sub_part_field_item:
ident
{
- if (Lex->part_info->subpart_field_list.push_back($1.str))
+ partition_info *part_info= Lex->part_info;
+ if (part_info->subpart_field_list.push_back($1.str))
{
mem_alloc_error(1);
MYSQL_YYABORT;
}
+ if (part_info->subpart_field_list.elements > MAX_REF_PARTS)
+ {
+ my_error(ER_TOO_MANY_PARTITION_FUNC_FIELDS_ERROR, MYF(0),
+ "list of subpartition fields");
+ MYSQL_YYABORT;
+ }
}
;
@@ -3960,8 +3987,7 @@ part_defs:
{}
| '(' part_def_list ')'
{
- LEX *lex= Lex;
- partition_info *part_info= lex->part_info;
+ partition_info *part_info= Lex->part_info;
uint count_curr_parts= part_info->partitions.elements;
if (part_info->no_parts != 0)
{
@@ -3988,8 +4014,7 @@ part_def_list:
part_definition:
PARTITION_SYM
{
- LEX *lex= Lex;
- partition_info *part_info= lex->part_info;
+ partition_info *part_info= Lex->part_info;
partition_element *p_elem= new partition_element();
if (!p_elem || part_info->partitions.push_back(p_elem))
@@ -4013,8 +4038,7 @@ part_definition:
part_name:
ident
{
- LEX *lex= Lex;
- partition_info *part_info= lex->part_info;
+ partition_info *part_info= Lex->part_info;
partition_element *p_elem= part_info->curr_part_elem;
p_elem->partition_name= $1.str;
}
@@ -4024,15 +4048,16 @@ opt_part_values:
/* empty */
{
LEX *lex= Lex;
+ partition_info *part_info= lex->part_info;
if (! lex->is_partition_management())
{
- if (lex->part_info->part_type == RANGE_PARTITION)
+ if (part_info->part_type == RANGE_PARTITION)
{
my_error(ER_PARTITION_REQUIRES_VALUES_ERROR, MYF(0),
"RANGE", "LESS THAN");
MYSQL_YYABORT;
}
- if (lex->part_info->part_type == LIST_PARTITION)
+ if (part_info->part_type == LIST_PARTITION)
{
my_error(ER_PARTITION_REQUIRES_VALUES_ERROR, MYF(0),
"LIST", "IN");
@@ -4040,14 +4065,15 @@ opt_part_values:
}
}
else
- lex->part_info->part_type= HASH_PARTITION;
+ part_info->part_type= HASH_PARTITION;
}
| VALUES LESS_SYM THAN_SYM part_func_max
{
LEX *lex= Lex;
+ partition_info *part_info= lex->part_info;
if (! lex->is_partition_management())
{
- if (Lex->part_info->part_type != RANGE_PARTITION)
+ if (part_info->part_type != RANGE_PARTITION)
{
my_error(ER_PARTITION_WRONG_VALUES_ERROR, MYF(0),
"RANGE", "LESS THAN");
@@ -4055,14 +4081,15 @@ opt_part_values:
}
}
else
- lex->part_info->part_type= RANGE_PARTITION;
+ part_info->part_type= RANGE_PARTITION;
}
| VALUES IN_SYM '(' part_list_func ')'
{
LEX *lex= Lex;
+ partition_info *part_info= lex->part_info;
if (! lex->is_partition_management())
{
- if (Lex->part_info->part_type != LIST_PARTITION)
+ if (part_info->part_type != LIST_PARTITION)
{
my_error(ER_PARTITION_WRONG_VALUES_ERROR, MYF(0),
"LIST", "IN");
@@ -4070,36 +4097,139 @@ opt_part_values:
}
}
else
- lex->part_info->part_type= LIST_PARTITION;
+ part_info->part_type= LIST_PARTITION;
+ }
+ ;
+
+part_column_expr_list:
+ part_column_expr_item {}
+ | part_column_expr_list ',' part_column_expr_item {}
+ ;
+
+part_column_expr_item:
+ MAX_VALUE_SYM
+ {
+ partition_info *part_info= Lex->part_info;
+ part_column_list_val *col_val;
+ if (part_info->part_type == LIST_PARTITION)
+ {
+ my_parse_error(ER(ER_MAXVALUE_IN_LIST_PARTITIONING_ERROR));
+ MYSQL_YYABORT;
+ }
+ if (!(col_val= part_info->add_column_value()))
+ {
+ MYSQL_YYABORT;
+ }
+ col_val->max_value= TRUE;
+ }
+ | bit_expr
+ {
+ part_column_list_val *col_val;
+ LEX *lex= Lex;
+ if (!lex->safe_to_cache_query)
+ {
+ my_error(ER_NO_CONST_EXPR_IN_RANGE_OR_LIST_ERROR, MYF(0));
+ MYSQL_YYABORT;
+ }
+ if (!(col_val= lex->part_info->add_column_value()))
+ {
+ MYSQL_YYABORT;
+ }
+ col_val->item_expression= $1;
+ col_val->part_info= NULL;
+ }
+ ;
+
+part_column_list_value:
+ COLUMN_LIST_SYM
+ {
+ LEX *lex= Lex;
+ partition_info *part_info= lex->part_info;
+ uint num_columns;
+ partition_element *p_elem= part_info->curr_part_elem;
+ part_column_list_val *col_val_array;
+ part_elem_value *list_val;
+
+ if (!part_info->column_list &&
+ !lex->is_partition_management())
+ {
+ my_error(ER_PARTITION_COLUMN_LIST_ERROR, MYF(0));
+ MYSQL_YYABORT;
+ }
+ if (!(list_val=
+ (part_elem_value*)sql_calloc(sizeof(part_elem_value))) ||
+ p_elem->list_val_list.push_back(list_val))
+ {
+ mem_alloc_error(sizeof(part_elem_value));
+ MYSQL_YYABORT;
+ }
+ if (part_info->num_columns)
+ num_columns= part_info->num_columns;
+ else
+ num_columns= MAX_REF_PARTS;
+ if (!(col_val_array=
+ (part_column_list_val*)sql_calloc(num_columns *
+ sizeof(part_column_list_val))))
+ {
+ mem_alloc_error(num_columns * sizeof(part_elem_value));
+ MYSQL_YYABORT;
+ }
+ list_val->col_val_array= col_val_array;
+ part_info->curr_list_val= list_val;
+ part_info->curr_list_object= 0;
+ }
+ '(' part_column_expr_list ')'
+ {
+ partition_info *part_info= Lex->part_info;
+ uint num_columns= part_info->num_columns;
+ if (num_columns && num_columns != part_info->curr_list_object)
+ {
+ my_error(ER_PARTITION_COLUMN_LIST_ERROR, MYF(0));
+ MYSQL_YYABORT;
+ }
+ part_info->num_columns= part_info->curr_list_object;
}
;
part_func_max:
max_value_sym
{
- LEX *lex= Lex;
- if (lex->part_info->defined_max_value)
+ partition_info *part_info= Lex->part_info;
+ if (part_info->defined_max_value)
{
my_parse_error(ER(ER_PARTITION_MAXVALUE_ERROR));
MYSQL_YYABORT;
}
- lex->part_info->defined_max_value= TRUE;
- lex->part_info->curr_part_elem->max_value= TRUE;
- lex->part_info->curr_part_elem->range_value= LONGLONG_MAX;
+ if (part_info->column_list)
+ {
+ my_parse_error(ER(ER_PARTITION_COLUMN_LIST_ERROR));
+ MYSQL_YYABORT;
+ }
+ part_info->defined_max_value= TRUE;
+ part_info->curr_part_elem->max_value= TRUE;
+ part_info->curr_part_elem->range_value= LONGLONG_MAX;
}
| part_range_func
{
- if (Lex->part_info->defined_max_value)
+ partition_info *part_info= Lex->part_info;
+ if (part_info->defined_max_value)
{
my_parse_error(ER(ER_PARTITION_MAXVALUE_ERROR));
MYSQL_YYABORT;
}
- if (Lex->part_info->curr_part_elem->has_null_value)
+ if (part_info->curr_part_elem->has_null_value)
{
my_parse_error(ER(ER_NULL_IN_VALUES_LESS_THAN));
MYSQL_YYABORT;
}
+ if (part_info->column_list)
+ {
+ my_parse_error(ER(ER_PARTITION_COLUMN_LIST_ERROR));
+ MYSQL_YYABORT;
+ }
}
+ | '(' part_column_list_value ')'
+ {}
;
max_value_sym:
@@ -4136,7 +4266,13 @@ part_list_item:
mem_alloc_error(sizeof(part_elem_value));
MYSQL_YYABORT;
}
+ if (part_info->column_list)
+ {
+ my_parse_error(ER(ER_PARTITION_COLUMN_LIST_ERROR));
+ MYSQL_YYABORT;
+ }
}
+ | part_column_list_value
;
part_bit_expr:
@@ -4145,6 +4281,7 @@ part_bit_expr:
Item *part_expr= $1;
THD *thd= YYTHD;
LEX *lex= thd->lex;
+ partition_info *part_info= lex->part_info;
Name_resolution_context *context= &lex->current_select->context;
TABLE_LIST *save_list= context->table_list;
const char *save_where= thd->where;
@@ -4181,12 +4318,12 @@ part_bit_expr:
value_ptr->unsigned_flag= FALSE;
if ((value_ptr->null_value= part_expr->null_value))
{
- if (Lex->part_info->curr_part_elem->has_null_value)
+ if (part_info->curr_part_elem->has_null_value)
{
my_error(ER_MULTIPLE_DEF_CONST_IN_LIST_PART_ERROR, MYF(0));
MYSQL_YYABORT;
}
- Lex->part_info->curr_part_elem->has_null_value= TRUE;
+ part_info->curr_part_elem->has_null_value= TRUE;
}
else if (part_expr->result_type() != INT_RESULT)
{
@@ -4200,8 +4337,9 @@ part_bit_expr:
opt_sub_partition:
/* empty */
{
- if (Lex->part_info->no_subparts != 0 &&
- !Lex->part_info->use_default_subpartitions)
+ partition_info *part_info= Lex->part_info;
+ if (part_info->no_subparts != 0 &&
+ !part_info->use_default_subpartitions)
{
/*
We come here when we have defined subpartitions on the first
@@ -4213,8 +4351,7 @@ opt_sub_partition:
}
| '(' sub_part_list ')'
{
- LEX *lex= Lex;
- partition_info *part_info= lex->part_info;
+ partition_info *part_info= Lex->part_info;
if (part_info->no_subparts != 0)
{
if (part_info->no_subparts !=
@@ -4245,8 +4382,7 @@ sub_part_list:
sub_part_definition:
SUBPARTITION_SYM
{
- LEX *lex= Lex;
- partition_info *part_info= lex->part_info;
+ partition_info *part_info= Lex->part_info;
partition_element *curr_part= part_info->current_partition;
partition_element *sub_p_elem= new partition_element(curr_part);
if (part_info->use_default_subpartitions &&
@@ -4300,9 +4436,9 @@ opt_part_option:
{ Lex->part_info->curr_part_elem->tablespace_name= $3.str; }
| opt_storage ENGINE_SYM opt_equal storage_engines
{
- LEX *lex= Lex;
- lex->part_info->curr_part_elem->engine_type= $4;
- lex->part_info->default_engine_type= $4;
+ partition_info *part_info= Lex->part_info;
+ part_info->curr_part_elem->engine_type= $4;
+ part_info->default_engine_type= $4;
}
| NODEGROUP_SYM opt_equal real_ulong_num
{ Lex->part_info->curr_part_elem->nodegroup_id= (uint16) $3; }
@@ -4318,6 +4454,11 @@ opt_part_option:
{ Lex->part_info->curr_part_elem->part_comment= $3.str; }
;
+opt_global:
+ /* empty */ { $$= FALSE;}
+ | GLOBAL_SYM { $$= TRUE; }
+ ;
+
/*
End of partition parser part
*/
@@ -5786,8 +5927,8 @@ reorg_parts_rule:
}
INTO '(' part_def_list ')'
{
- LEX *lex= Lex;
- lex->part_info->no_parts= lex->part_info->partitions.elements;
+ partition_info *part_info= Lex->part_info;
+ part_info->no_parts= part_info->partitions.elements;
}
;
@@ -11529,7 +11670,6 @@ keyword_sp:
| MAX_SIZE_SYM {}
| MAX_UPDATES_PER_HOUR {}
| MAX_USER_CONNECTIONS_SYM {}
- | MAX_VALUE_SYM {}
| MEDIUM_SYM {}
| MEMORY_SYM {}
| MERGE_SYM {}