diff options
Diffstat (limited to 'sql/sql_select.h')
| -rw-r--r-- | sql/sql_select.h | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/sql/sql_select.h b/sql/sql_select.h index 0f622b0c84e..16e5a91c0cd 100644 --- a/sql/sql_select.h +++ b/sql/sql_select.h @@ -198,6 +198,12 @@ int rr_sequential(READ_RECORD *info); int rr_sequential_and_unpack(READ_RECORD *info); +#include "opt_qpf.h" + +/************************************************************************************** + * New EXPLAIN structures END + *************************************************************************************/ + class JOIN_CACHE; class SJ_TMP_TABLE; class JOIN_TAB_RANGE; @@ -252,7 +258,9 @@ typedef struct st_join_table { JOIN_TAB_RANGE *bush_children; /* Special content for EXPLAIN 'Extra' column or NULL if none */ - const char *info; + enum Extra_tag info; + //const char *info; + /* Bitmap of TAB_INFO_* bits that encodes special line for EXPLAIN 'Extra' column, or 0 if there is no info. @@ -1328,6 +1336,8 @@ public: pre_sort_join_tab= NULL; emb_sjm_nest= NULL; sjm_lookup_tables= 0; + + exec_qpf_saved= false; /* The following is needed because JOIN::cleanup(true) may be called for joins for which JOIN::optimize was aborted with an error before a proper @@ -1335,6 +1345,7 @@ public: */ table_access_tabs= NULL; } + bool exec_qpf_saved; int prepare(Item ***rref_pointer_array, TABLE_LIST *tables, uint wind_num, COND *conds, uint og_num, ORDER *order, ORDER *group, @@ -1460,11 +1471,8 @@ public: { return (unit->item && unit->item->is_in_predicate()); } - - int print_explain(select_result_sink *result, uint8 explain_flags, - bool on_the_fly, - bool need_tmp_table, bool need_order, - bool distinct,const char *message); + int save_qpf(QPF_query *output, bool need_tmp_table, bool need_order, + bool distinct, const char *message); private: /** TRUE if the query contains an aggregate function but has no GROUP @@ -1834,6 +1842,28 @@ void push_index_cond(JOIN_TAB *tab, uint keyno); #define OPT_LINK_EQUAL_FIELDS 1 +/* EXPLAIN-related utility functions */ +int print_explain_message_line(select_result_sink *result, + uint8 options, + uint select_number, + const char *select_type, + const char *message); +void explain_append_mrr_info(QUICK_RANGE_SELECT *quick, String *res); +int print_explain_row(select_result_sink *result, + uint8 options, + uint select_number, + const char *select_type, + const char *table_name, + //const char *partitions, (todo) + enum join_type jtype, + const char *possible_keys, + const char *index, + const char *key_len, + const char *ref, + ha_rows rows, + const char *extra); +void make_possible_keys_line(TABLE *table, key_map possible_keys, String *line); + /**************************************************************************** Temporary table support for SQL Runtime ***************************************************************************/ |