WL#3700: Handler API change: all index search methods - that is,

index_read(), index_read_idx(), index_read_last(), and
records_in_range() - instead of 'uint keylen' argument take
'ulonglong keypart_map', a bitmap showing which keyparts are
present in the key value.
Fallback method is provided for handlers that are lagging behind.

4 files changed, 12 insertions, 11 deletions

diff --git a/include/heap.h b/include/heap.h
index af053341203..33bbd2f0b3f 100644
--- a/include/heap.h
+++ b/include/heap.h
@@ -226,7 +226,7 @@ ha_rows hp_rb_records_in_range(HP_INFO *info, int inx, key_range *min_key,
                                key_range *max_key);
 int hp_panic(enum ha_panic_function flag);
 int heap_rkey(HP_INFO *info, byte *record, int inx, const byte *key, 
-              uint key_len, enum ha_rkey_function find_flag);
+              ulonglong keypart_map, enum ha_rkey_function find_flag);
 extern gptr heap_find(HP_INFO *info,int inx,const byte *key);
 extern int heap_check_heap(HP_INFO *info, my_bool print_status);
 extern byte *heap_position(HP_INFO *info);
diff --git a/include/my_base.h b/include/my_base.h
index 14e4e3afb44..d7cb68efd1f 100644
--- a/include/my_base.h
+++ b/include/my_base.h
@@ -384,9 +384,10 @@ enum ha_base_keytype {
 #define HA_ERR_TABLE_NEEDS_UPGRADE 164  /* The table changed in storage engine */
 #define HA_ERR_TABLE_READONLY    165  /* The table is not writable */
 
-#define HA_ERR_AUTOINC_READ_FAILED 166/* Failed to get the next autoinc value */
-#define HA_ERR_AUTOINC_ERANGE    167  /* Failed to set the row autoinc value */
-#define HA_ERR_LAST              167  /*Copy last error nr.*/
+#define HA_ERR_AUTOINC_READ_FAILED 166   /* Failed to get next autoinc value */
+#define HA_ERR_AUTOINC_ERANGE    167     /* Failed to set row autoinc value */
+#define HA_ERR_GENERIC           168     /* Generic error */
+#define HA_ERR_LAST              168 /*Copy last error nr.*/
 /* Add error numbers before HA_ERR_LAST and change it accordingly. */
 #define HA_ERR_ERRORS            (HA_ERR_LAST - HA_ERR_FIRST + 1)
 
@@ -467,6 +468,7 @@ typedef struct st_key_range
 {
   const byte *key;
   uint length;
+  ulonglong keypart_map;
   enum ha_rkey_function flag;
 } key_range;
 
diff --git a/include/myisam.h b/include/myisam.h
index f763bf07719..1dd8f6f7ec4 100644
--- a/include/myisam.h
+++ b/include/myisam.h
@@ -274,9 +274,8 @@ extern struct st_myisam_info *mi_open(const char *name,int mode,
 				      uint wait_if_locked);
 extern int mi_panic(enum ha_panic_function function);
 extern int mi_rfirst(struct st_myisam_info *file,byte *buf,int inx);
-extern int mi_rkey(struct st_myisam_info *file,byte *buf,int inx,
-		   const byte *key,
-		   uint key_len, enum ha_rkey_function search_flag);
+extern int mi_rkey(MI_INFO *info, byte *buf, int inx, const byte *key,
+            ulonglong keypart_map, enum ha_rkey_function search_flag);
 extern int mi_rlast(struct st_myisam_info *file,byte *buf,int inx);
 extern int mi_rnext(struct st_myisam_info *file,byte *buf,int inx);
 extern int mi_rnext_same(struct st_myisam_info *info, byte *buf);
@@ -303,7 +302,7 @@ extern int mi_extra(struct st_myisam_info *file,
 		    enum ha_extra_function function,
 		    void *extra_arg);
 extern int mi_reset(struct st_myisam_info *file);
-extern ha_rows mi_records_in_range(struct st_myisam_info *info,int inx,
+extern ha_rows mi_records_in_range(MI_INFO *info, int inx,
                                    key_range *min_key, key_range *max_key);
 extern int mi_log(int activate_log);
 extern int mi_is_changed(struct st_myisam_info *info);
diff --git a/include/myisammrg.h b/include/myisammrg.h
index 6587613697a..149b72dc7e1 100644
--- a/include/myisammrg.h
+++ b/include/myisammrg.h
@@ -86,8 +86,8 @@ extern int myrg_rlast(MYRG_INFO *file,byte *buf,int inx);
 extern int myrg_rnext(MYRG_INFO *file,byte *buf,int inx);
 extern int myrg_rprev(MYRG_INFO *file,byte *buf,int inx);
 extern int myrg_rnext_same(MYRG_INFO *file,byte *buf);
-extern int myrg_rkey(MYRG_INFO *file,byte *buf,int inx,const byte *key,
-		       uint key_len, enum ha_rkey_function search_flag);
+extern int myrg_rkey(MYRG_INFO *info,byte *buf,int inx, const byte *key,
+                     ulonglong keypart_map, enum ha_rkey_function search_flag);
 extern int myrg_rrnd(MYRG_INFO *file,byte *buf,ulonglong pos);
 extern int myrg_rsame(MYRG_INFO *file,byte *record,int inx);
 extern int myrg_update(MYRG_INFO *file,const byte *old,byte *new_rec);
@@ -100,7 +100,7 @@ extern int myrg_extra(MYRG_INFO *file,enum ha_extra_function function,
 		      void *extra_arg);
 extern int myrg_reset(MYRG_INFO *info);
 extern void myrg_extrafunc(MYRG_INFO *info,invalidator_by_filename inv);
-extern ha_rows myrg_records_in_range(MYRG_INFO *info,int inx,
+extern ha_rows myrg_records_in_range(MYRG_INFO *info, int inx,
                                      key_range *min_key, key_range *max_key);
 
 extern ulonglong myrg_position(MYRG_INFO *info);