HANDLER works only with MyISAM tables

HA_NO_FULLTEXT_KEY property -> HA_CAN_FULLTEXT

sql/ha_berkeley.h

@@ -90,7 +90,7 @@ class ha_berkeley: public handler
 		    HA_REC_NOT_IN_SEQ |
 		    HA_KEYPOS_TO_RNDPOS | HA_READ_ORDER | HA_LASTKEY_ORDER |
 		    HA_LONGLONG_KEYS | HA_NULL_KEY | HA_HAVE_KEY_READ_ONLY |
-		    HA_BLOB_KEY | HA_NOT_EXACT_COUNT | HA_NO_FULLTEXT_KEY |
+		    HA_BLOB_KEY | HA_NOT_EXACT_COUNT |
 		    HA_PRIMARY_KEY_IN_READ_INDEX | HA_DROP_BEFORE_CREATE |
 		    HA_AUTO_PART_KEY),
     changed_rows(0),last_dup_key((uint) -1),version(0),using_ignore(0)

sql/ha_heap.h

@@ -35,7 +35,7 @@ class ha_heap: public handler
   ulong option_flag() const
   { return (HA_READ_RND_SAME | HA_NO_INDEX | HA_ONLY_WHOLE_INDEX |
 	    HA_WRONG_ASCII_ORDER | HA_KEYPOS_TO_RNDPOS | HA_NO_BLOBS |
-	    HA_REC_NOT_IN_SEQ | HA_NO_FULLTEXT_KEY); }
+	    HA_REC_NOT_IN_SEQ); }
   uint max_record_length() const { return HA_MAX_REC_LENGTH; }
   uint max_keys()          const { return MAX_KEY; }
   uint max_key_parts()     const { return MAX_REF_PARTS; }

sql/ha_innobase.h

@@ -79,7 +79,7 @@ class ha_innobase: public handler
 			  HA_KEYPOS_TO_RNDPOS | HA_LASTKEY_ORDER |
 			  HA_HAVE_KEY_READ_ONLY | HA_READ_NOT_EXACT_KEY |
 			  HA_LONGLONG_KEYS | HA_NULL_KEY |
-			  HA_NOT_EXACT_COUNT | HA_NO_FULLTEXT_KEY |
+			  HA_NOT_EXACT_COUNT |
 			  HA_NO_WRITE_DELAYED |
 			  HA_PRIMARY_KEY_IN_READ_INDEX |
 			  HA_DROP_BEFORE_CREATE |

sql/ha_isam.h

@@ -34,7 +34,7 @@ class ha_isam: public handler
 		    HA_KEYPOS_TO_RNDPOS | HA_READ_ORDER | HA_LASTKEY_ORDER |
 		    HA_HAVE_KEY_READ_ONLY | HA_READ_NOT_EXACT_KEY |
 		    HA_LONGLONG_KEYS | HA_KEY_READ_WRONG_STR | HA_DUPP_POS |
-		    HA_NOT_DELETE_WITH_CACHE | HA_NO_FULLTEXT_KEY)
+		    HA_NOT_DELETE_WITH_CACHE)
     {}
   ~ha_isam() {}
   const char *table_type() const { return "ISAM"; }

sql/ha_isammrg.h

@@ -33,7 +33,7 @@ class ha_isammrg: public handler
   const char *table_type() const { return "MRG_ISAM"; }
   const char **bas_ext() const;
   ulong option_flag() const { return HA_READ_RND_SAME | HA_KEYPOS_TO_RNDPOS
-                                   | HA_REC_NOT_IN_SEQ  | HA_NO_FULLTEXT_KEY;}
+                                                      | HA_REC_NOT_IN_SEQ;}
   uint max_record_length() const { return HA_MAX_REC_LENGTH; }
   uint max_keys()          const { return 0; }
   uint max_key_parts()     const { return 0; }

sql/ha_myisam.h

@@ -48,6 +48,7 @@ class ha_myisam: public handler
 		    HA_KEYPOS_TO_RNDPOS | HA_READ_ORDER | HA_LASTKEY_ORDER |
 		    HA_HAVE_KEY_READ_ONLY | HA_READ_NOT_EXACT_KEY |
 		    HA_LONGLONG_KEYS | HA_NULL_KEY |
+                    HA_CAN_FULLTEXT | HA_CAN_SQL_HANDLER |
 		    HA_DUPP_POS | HA_BLOB_KEY | HA_AUTO_PART_KEY),
     enable_activate_all_index(1)
   {}

sql/ha_myisammrg.h

@@ -35,7 +35,7 @@ class ha_myisammrg: public handler
   ulong option_flag() const
     { return (HA_REC_NOT_IN_SEQ | HA_READ_NEXT |
 	      HA_READ_PREV | HA_READ_RND_SAME |
-	      HA_HAVE_KEY_READ_ONLY | HA_NO_FULLTEXT_KEY |
+	      HA_HAVE_KEY_READ_ONLY |
 	      HA_KEYPOS_TO_RNDPOS | HA_READ_ORDER |
 	      HA_LASTKEY_ORDER | HA_READ_NOT_EXACT_KEY |
 	      HA_LONGLONG_KEYS | HA_NULL_KEY | HA_BLOB_KEY); }

sql/handler.h

@@ -76,7 +76,8 @@
 #define HA_NOT_DELETE_WITH_CACHE (HA_NOT_READ_AFTER_KEY*2)
 #define HA_NO_TEMP_TABLES       (HA_NOT_DELETE_WITH_CACHE*2)
 #define HA_NO_PREFIX_CHAR_KEYS	(HA_NO_TEMP_TABLES*2) 
-#define HA_NO_FULLTEXT_KEY      (HA_NO_PREFIX_CHAR_KEYS*2)
+#define HA_CAN_FULLTEXT         (HA_NO_PREFIX_CHAR_KEYS*2)
+#define HA_CAN_SQL_HANDLER      (HA_CAN_FULLTEXT*2)
 
 	/* Parameters for open() (in register form->filestat) */
 	/* HA_GET_INFO does an implicit HA_ABORT_IF_LOCKED */

sql/sql_handler.cc

@@ -54,6 +54,13 @@ int mysql_ha_open(THD *thd, TABLE_LIST *tables)
   if (err)
     return -1;
 
+  // there can be only one table in *tables
+  if (!(tables->table->file->option_flag() & HA_CAN_SQL_HANDLER))
+  {
+    my_printf_error(ER_ILLEGAL_HA,ER(ER_ILLEGAL_HA),MYF(0), tables->name);
+    return -1;
+  }
+
   send_ok(&thd->net);
   return 0;
 }

sql/sql_table.cc

@@ -430,7 +430,7 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
 
     if (key->type == Key::FULLTEXT)
     {
-      if (file->option_flag() & HA_NO_FULLTEXT_KEY)
+      if (!(file->option_flag() & HA_CAN_FULLTEXT))
       {
         my_error(ER_TABLE_CANT_HANDLE_FULLTEXT, MYF(0));
         DBUG_RETURN(-1);