ALTER TABLE fixes for high-level indexes

Fixes for ALTER TABLE ... ADD/DROP COLUMN, ALGORITHM=COPY.

Let quick_rm_table() remove high-level indexes along with original table.

Avoid locking uninitialized LOCK_share for INTERNAL_TMP_TABLEs.

Don't enable bulk insert when altering a table containing vector index.
InnoDB can't handle situation when bulk insert is enabled for one table
but disabled for another. We can't do bulk insert on vector index as it
does table updates currently.

mysql-test/main/vector,myisam.rdiff

@@ -73,3 +73,220 @@
 -t1.ibd
  drop database test1;
  db.opt
+@@ -387,9 +387,11 @@
+ # ADD/DROP COLUMN, ALGORITHM=COPY
+ alter table t1 add column a int, algorithm=copy;
+ db.opt
+-t1#i#01.ibd
++t1#i#01.MYD
++t1#i#01.MYI
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+@@ -398,12 +400,14 @@
+   `a` int(11) DEFAULT NULL,
+   PRIMARY KEY (`id`),
+   VECTOR KEY `v` (`v`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ alter table t1 drop column a, algorithm=copy;
+ db.opt
+-t1#i#01.ibd
++t1#i#01.MYD
++t1#i#01.MYI
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+@@ -415,13 +415,15 @@
+   `v` blob NOT NULL,
+   PRIMARY KEY (`id`),
+   VECTOR KEY `v` (`v`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ # ADD/DROP INDEX, ALGORITHM=COPY (non-vector)
+ alter table t1 add index a(id), algorithm=copy;
+ db.opt
+-t1#i#02.ibd
++t1#i#02.MYD
++t1#i#02.MYI
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+@@ -432,12 +432,14 @@
+   PRIMARY KEY (`id`),
+   KEY `a` (`id`),
+   VECTOR KEY `v` (`v`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ alter table t1 drop index a, algorithm=copy;
+ db.opt
+-t1#i#01.ibd
++t1#i#01.MYD
++t1#i#01.MYI
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+@@ -445,13 +447,15 @@
+   `v` blob NOT NULL,
+   PRIMARY KEY (`id`),
+   VECTOR KEY `v` (`v`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ # CREATE/DROP INDEX, ALGORITHM=COPY (non-vector)
+ create index a on t1(id) algorithm=copy;
+ db.opt
+-t1#i#02.ibd
++t1#i#02.MYD
++t1#i#02.MYI
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+@@ -460,12 +464,14 @@
+   PRIMARY KEY (`id`),
+   KEY `a` (`id`),
+   VECTOR KEY `v` (`v`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+-alter table t1 drop index a, algorithm=copy;
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++drop index a on t1;
+ db.opt
+-t1#i#01.ibd
++t1#i#01.MYD
++t1#i#01.MYI
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+@@ -479,13 +479,15 @@
+   `v` blob NOT NULL,
+   PRIMARY KEY (`id`),
+   VECTOR KEY `v` (`v`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ # ADD/DROP COLUMN IF [NOT] EXISTS, ALGORITHM=COPY (non-vector)
+ alter table t1 add column if not exists a int, algorithm=copy;
+ db.opt
+-t1#i#01.ibd
++t1#i#01.MYD
++t1#i#01.MYI
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+@@ -494,12 +496,14 @@
+   `a` int(11) DEFAULT NULL,
+   PRIMARY KEY (`id`),
+   VECTOR KEY `v` (`v`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ alter table t1 drop column if exists a, algorithm=copy;
+ db.opt
+-t1#i#01.ibd
++t1#i#01.MYD
++t1#i#01.MYI
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` ( 
+@@ -509,24 +511,27 @@
+   `v` blob NOT NULL,
+   PRIMARY KEY (`id`),
+   VECTOR KEY `v` (`v`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ # ADD/DROP INDEX, ALGORITHM=COPY (vector)
+ alter table t1 drop index v, algorithm=copy;
+ db.opt
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+   `id` int(11) NOT NULL AUTO_INCREMENT,
+   `v` blob NOT NULL,
+   PRIMARY KEY (`id`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ alter table t1 add vector index v(v), algorithm=copy;
+ db.opt
+-t1#i#01.ibd
++t1#i#01.MYD
++t1#i#01.MYI
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+@@ -534,24 +539,27 @@
+   `v` blob NOT NULL,
+   PRIMARY KEY (`id`),
+   VECTOR KEY `v` (`v`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ # CREATE/DROP INDEX, ALGORITHM=COPY (vector)
+ alter table t1 drop index v, algorithm=copy;
+ db.opt
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+   `id` int(11) NOT NULL AUTO_INCREMENT,
+   `v` blob NOT NULL,
+   PRIMARY KEY (`id`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ create vector index v on t1(v) algorithm=copy;
+ db.opt
+-t1#i#01.ibd
++t1#i#01.MYD
++t1#i#01.MYI
++t1.MYD
++t1.MYI
+ t1.frm
+-t1.ibd
+ show create table t1;
+ Table	Create Table
+ t1	CREATE TABLE `t1` (
+@@ -565,5 +567,5 @@
+   `v` blob NOT NULL,
+   PRIMARY KEY (`id`),
+   VECTOR KEY `v` (`v`)
+-) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
++) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+ drop table t1;

mysql-test/main/vector.result

@@ -470,3 +470,178 @@ set @a=vec_fromtext('[94.542572,8.735560,60.050098,74.043800,90.068710,28.212160
 select vec_distance_cosine(@a, @a), vec_distance_euclidean(@a, @a);
 vec_distance_cosine(@a, @a)	vec_distance_euclidean(@a, @a)
 0	0
+# Test ALTER TABLE, CREATE/DROP INDEX
+create table t1 (id int auto_increment primary key, v blob not null, vector index (v));
+insert t1 (v) values (x'e360d63ebe554f3fcdbc523f4522193f5236083d'),
+(x'f511303f72224a3fdd05fe3eb22a133ffae86a3f'),
+(x'f09baa3ea172763f123def3e0c7fe53e288bf33e'),
+(x'b97a523f2a193e3eb4f62e3f2d23583e9dd60d3f'),
+(x'f7c5df3e984b2b3e65e59d3d7376db3eac63773e'),
+(x'de01453ffa486d3f10aa4d3fdd66813c71cb163f'),
+(x'76edfc3e4b57243f10f8423fb158713f020bda3e'),
+(x'56926c3fdf098d3e2c8c5e3d1ad4953daa9d0b3e'),
+(x'7b713f3e5258323f80d1113d673b2b3f66e3583f'),
+(x'6ca1d43e9df91b3fe580da3e1c247d3f147cf33e');
+# ADD/DROP COLUMN, ALGORITHM=COPY
+alter table t1 add column a int, algorithm=copy;
+db.opt
+t1#i#01.ibd
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  `a` int(11) DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  VECTOR KEY `v` (`v`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+alter table t1 drop column a, algorithm=copy;
+db.opt
+t1#i#01.ibd
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  PRIMARY KEY (`id`),
+  VECTOR KEY `v` (`v`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+# ADD/DROP INDEX, ALGORITHM=COPY (non-vector)
+alter table t1 add index a(id), algorithm=copy;
+db.opt
+t1#i#02.ibd
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  PRIMARY KEY (`id`),
+  KEY `a` (`id`),
+  VECTOR KEY `v` (`v`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+alter table t1 drop index a, algorithm=copy;
+db.opt
+t1#i#01.ibd
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  PRIMARY KEY (`id`),
+  VECTOR KEY `v` (`v`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+# CREATE/DROP INDEX, ALGORITHM=COPY (non-vector)
+create index a on t1(id) algorithm=copy;
+db.opt
+t1#i#02.ibd
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  PRIMARY KEY (`id`),
+  KEY `a` (`id`),
+  VECTOR KEY `v` (`v`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+alter table t1 drop index a, algorithm=copy;
+db.opt
+t1#i#01.ibd
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  PRIMARY KEY (`id`),
+  VECTOR KEY `v` (`v`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+# ADD/DROP COLUMN IF [NOT] EXISTS, ALGORITHM=COPY (non-vector)
+alter table t1 add column if not exists a int, algorithm=copy;
+db.opt
+t1#i#01.ibd
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  `a` int(11) DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  VECTOR KEY `v` (`v`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+alter table t1 drop column if exists a, algorithm=copy;
+db.opt
+t1#i#01.ibd
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  PRIMARY KEY (`id`),
+  VECTOR KEY `v` (`v`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+# ADD/DROP INDEX, ALGORITHM=COPY (vector)
+alter table t1 drop index v, algorithm=copy;
+db.opt
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+alter table t1 add vector index v(v), algorithm=copy;
+db.opt
+t1#i#01.ibd
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  PRIMARY KEY (`id`),
+  VECTOR KEY `v` (`v`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+# CREATE/DROP INDEX, ALGORITHM=COPY (vector)
+alter table t1 drop index v, algorithm=copy;
+db.opt
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+create vector index v on t1(v) algorithm=copy;
+db.opt
+t1#i#01.ibd
+t1.frm
+t1.ibd
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `v` blob NOT NULL,
+  PRIMARY KEY (`id`),
+  VECTOR KEY `v` (`v`)
+) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+drop table t1;

mysql-test/main/vector.test

@@ -217,3 +217,78 @@ drop table t1;
 # distance to itself
 set @a=vec_fromtext('[94.542572,8.735560,60.050098,74.043800,90.068710,28.212160,70.854660,69.636841,35.620232,69.190628]');
 select vec_distance_cosine(@a, @a), vec_distance_euclidean(@a, @a);
+
+--echo # Test ALTER TABLE, CREATE/DROP INDEX
+create table t1 (id int auto_increment primary key, v blob not null, vector index (v));
+insert t1 (v) values (x'e360d63ebe554f3fcdbc523f4522193f5236083d'),
+                     (x'f511303f72224a3fdd05fe3eb22a133ffae86a3f'),
+                     (x'f09baa3ea172763f123def3e0c7fe53e288bf33e'),
+                     (x'b97a523f2a193e3eb4f62e3f2d23583e9dd60d3f'),
+                     (x'f7c5df3e984b2b3e65e59d3d7376db3eac63773e'),
+                     (x'de01453ffa486d3f10aa4d3fdd66813c71cb163f'),
+                     (x'76edfc3e4b57243f10f8423fb158713f020bda3e'),
+                     (x'56926c3fdf098d3e2c8c5e3d1ad4953daa9d0b3e'),
+                     (x'7b713f3e5258323f80d1113d673b2b3f66e3583f'),
+                     (x'6ca1d43e9df91b3fe580da3e1c247d3f147cf33e');
+
+--echo # ADD/DROP COLUMN, ALGORITHM=COPY
+alter table t1 add column a int, algorithm=copy;
+list_files $datadir/test;
+show create table t1;
+alter table t1 drop column a, algorithm=copy;
+list_files $datadir/test;
+show create table t1;
+
+--echo # ADD/DROP INDEX, ALGORITHM=COPY (non-vector)
+alter table t1 add index a(id), algorithm=copy;
+list_files $datadir/test;
+show create table t1;
+alter table t1 drop index a, algorithm=copy;
+list_files $datadir/test;
+show create table t1;
+
+--echo # CREATE/DROP INDEX, ALGORITHM=COPY (non-vector)
+create index a on t1(id) algorithm=copy;
+list_files $datadir/test;
+show create table t1;
+if ($MTR_COMBINATION_MYISAM) {
+drop index a on t1;
+}
+if ($MTR_COMBINATION_INNODB) {
+alter table t1 drop index a, algorithm=copy;
+}
+list_files $datadir/test;
+show create table t1;
+
+--echo # ADD/DROP COLUMN IF [NOT] EXISTS, ALGORITHM=COPY (non-vector)
+alter table t1 add column if not exists a int, algorithm=copy;
+list_files $datadir/test;
+show create table t1;
+alter table t1 drop column if exists a, algorithm=copy;
+list_files $datadir/test;
+show create table t1;
+
+--echo # ADD/DROP INDEX, ALGORITHM=COPY (vector)
+alter table t1 drop index v, algorithm=copy;
+list_files $datadir/test;
+show create table t1;
+
+alter table t1 add vector index v(v), algorithm=copy;
+list_files $datadir/test;
+show create table t1;
+
+--echo # CREATE/DROP INDEX, ALGORITHM=COPY (vector)
+if ($MTR_COMBINATION_MYISAM) {
+# To be fixed to: drop index v on t1;
+alter table t1 drop index v, algorithm=copy;
+}
+if ($MTR_COMBINATION_INNODB) {
+alter table t1 drop index v, algorithm=copy;
+}
+list_files $datadir/test;
+show create table t1;
+create vector index v on t1(v) algorithm=copy;
+list_files $datadir/test;
+show create table t1;
+
+drop table t1;

sql/sql_base.cc

@@ -9838,10 +9838,12 @@ int TABLE::hlindex_open(uint nr)
   DBUG_ASSERT(nr == s->keys);
   if (!hlindex)
   {
-    mysql_mutex_lock(&s->LOCK_share);
+    if (s->tmp_table == NO_TMP_TABLE)
+      mysql_mutex_lock(&s->LOCK_share);
     if (!s->hlindex)
     {
-      mysql_mutex_unlock(&s->LOCK_share);
+      if (s->tmp_table == NO_TMP_TABLE)
+        mysql_mutex_unlock(&s->LOCK_share);
       TABLE_SHARE *share;
       char *path= NULL;
       size_t path_len= s->normalized_path.length + HLINDEX_BUF_LEN;
@@ -9865,20 +9867,26 @@ int TABLE::hlindex_open(uint nr)
         return 1;
       }
 
-      mysql_mutex_lock(&s->LOCK_share);
+      if (s->tmp_table == NO_TMP_TABLE)
+        mysql_mutex_lock(&s->LOCK_share);
       if (!s->hlindex)
       {
         s->hlindex= share;
-        mysql_mutex_unlock(&s->LOCK_share);
+        if (s->tmp_table == NO_TMP_TABLE)
+          mysql_mutex_unlock(&s->LOCK_share);
       }
       else
       {
-        mysql_mutex_unlock(&s->LOCK_share);
+        if (s->tmp_table == NO_TMP_TABLE)
+          mysql_mutex_unlock(&s->LOCK_share);
         free_table_share(share);
       }
     }
     else
-      mysql_mutex_unlock(&s->LOCK_share);
+    {
+      if (s->tmp_table == NO_TMP_TABLE)
+        mysql_mutex_unlock(&s->LOCK_share);
+    }
     TABLE *table= (TABLE*)alloc_root(&mem_root, sizeof(*table));
     if (!table || open_table_from_share(in_use, s->hlindex, &empty_clex_str,
                     db_stat, EXTRA_RECORD, in_use->open_options, table, 0))

sql/sql_table.cc

@@ -2082,6 +2082,26 @@ bool log_drop_table(THD *thd, const LEX_CSTRING *db_name,
 }
 
 
+static int get_hlindex_keys(THD *thd, const LEX_CSTRING *db,
+                            const LEX_CSTRING *table_name, const char *path,
+                            uint *keys, uint *total_keys)
+{
+  TABLE_SHARE share;
+  int error;
+  DBUG_ENTER("get_hlindex_keys");
+
+  init_tmp_table_share(thd, &share, db->str, 0, table_name->str, path, 1);
+  error= open_table_def(thd, &share, GTS_TABLE | GTS_USE_DISCOVERY);
+  if (!error)
+  {
+    *keys= share.keys;
+    *total_keys= share.total_keys;
+  }
+  free_table_share(&share);
+  DBUG_RETURN(error);
+}
+
+
 /**
   Quickly remove a table, without any logging
 
@@ -2116,7 +2136,25 @@ bool quick_rm_table(THD *thd, handlerton *base, const LEX_CSTRING *db,
     delete file;
   }
   if (!(flags & (FRM_ONLY|NO_HA_TABLE)))
+  {
+    uint keys, total_keys;
+    int hlindex_error= get_hlindex_keys(thd, db, table_name, path, &keys,
+                                        &total_keys);
     error|= ha_delete_table(thd, base, path, db, table_name, 0) > 0;
+    if (!hlindex_error)
+    {
+      char idx_path[FN_REFLEN + 1];
+      char *idx_path_end= strmov(idx_path, path);
+      for (uint i= keys; i < total_keys; i++)
+      {
+        my_snprintf(idx_path_end, HLINDEX_BUF_LEN, HLINDEX_TEMPLATE, i);
+        if (ha_delete_table(thd, base, idx_path, db, table_name, 0))
+          error= 1;
+      }
+    }
+    else
+      error= 1;
+  }
 
   if (!(flags & NO_FRM_RENAME))
   {
@@ -5373,18 +5411,17 @@ mysql_rename_table(handlerton *base, const LEX_CSTRING *old_db,
       char idx_from[FN_REFLEN + 1], idx_to[FN_REFLEN + 1];
       char *idx_from_end= strmov(idx_from, from_base);
       char *idx_to_end= strmov(idx_to, to_base);
-      TABLE_SHARE share;
+      uint keys, total_keys;
 
-      init_tmp_table_share(thd, &share, new_db->str, 0, new_name->str, to, 1);
-      if (!open_table_def(thd, &share, GTS_TABLE | GTS_USE_DISCOVERY))
+      if (!get_hlindex_keys(thd, new_db, new_name, to, &keys, &total_keys))
       {
-        for (uint i= share.keys; i < share.total_keys; i++)
+        for (uint i= keys; i < total_keys; i++)
         {
           my_snprintf(idx_from_end, HLINDEX_BUF_LEN, HLINDEX_TEMPLATE, i);
           my_snprintf(idx_to_end, HLINDEX_BUF_LEN, HLINDEX_TEMPLATE, i);
           if ((error= file->ha_rename_table(idx_from, idx_to)))
           {
-            for (; i >= share.keys; i--)
+            for (; i >= keys; i--)
             {
               my_snprintf(idx_from_end, HLINDEX_BUF_LEN, HLINDEX_TEMPLATE, i);
               my_snprintf(idx_to_end, HLINDEX_BUF_LEN, HLINDEX_TEMPLATE, i);
@@ -5402,7 +5439,6 @@ mysql_rename_table(handlerton *base, const LEX_CSTRING *old_db,
         rename_file_ext(to, from, reg_ext);
         error= 1;
       }
-      free_table_share(&share);
     }
   }
   if (!error && log_query && !(flags & (FN_TO_IS_TMP | FN_FROM_IS_TMP)))
@@ -12186,7 +12222,7 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to,
 
   from->file->info(HA_STATUS_VARIABLE);
   to->file->extra(HA_EXTRA_PREPARE_FOR_ALTER_TABLE);
-  if (!to->s->long_unique_table)
+  if (!to->s->long_unique_table && to->s->keys == to->s->total_keys)
   {
     to->file->ha_start_bulk_insert(from->file->stats.records,
                                    ignore ? 0 : HA_CREATE_UNIQUE_INDEX_BY_SORT);
@@ -12313,7 +12349,8 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to,
 
   thd->progress.max_counter= from->file->records();
   time_to_report_progress= MY_HOW_OFTEN_TO_WRITE/10;
-  if (!ignore) /* for now, InnoDB needs the undo log for ALTER IGNORE */
+  /* for now, InnoDB needs the undo log for ALTER IGNORE */
+  if (!ignore && to->s->keys == to->s->total_keys)
     to->file->extra(HA_EXTRA_BEGIN_ALTER_COPY);
 
   if (!(error= info.read_record()))
@@ -12490,7 +12527,7 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to,
   }
 
   bulk_insert_started= 0;
-  if (!ignore && error <= 0)
+  if (!ignore && to->s->keys == to->s->total_keys && error <= 0)
   {
     int alt_error= to->file->extra(HA_EXTRA_END_ALTER_COPY);
     if (alt_error > 0)

sql/vector_mhnsw.cc

@@ -603,7 +603,8 @@ MHNSW_Trx *MHNSW_Trx::get_from_thd(TABLE *table, bool for_update)
 
 MHNSW_Context *MHNSW_Context::get_from_share(TABLE_SHARE *share, TABLE *table)
 {
-  mysql_mutex_lock(&share->LOCK_share);
+  if (share->tmp_table == NO_TMP_TABLE)
+    mysql_mutex_lock(&share->LOCK_share);
   auto ctx= static_cast<MHNSW_Context*>(share->hlindex->hlindex_data);
   if (!ctx && table)
   {
@@ -614,7 +615,8 @@ MHNSW_Context *MHNSW_Context::get_from_share(TABLE_SHARE *share, TABLE *table)
   }
   if (ctx)
     ctx->refcnt++;
-  mysql_mutex_unlock(&share->LOCK_share);
+  if (share->tmp_table == NO_TMP_TABLE)
+    mysql_mutex_unlock(&share->LOCK_share);
   return ctx;
 }