Merge branch '10.0' into 10.1

cmake/zlib.cmake

@@ -34,11 +34,6 @@ ENDMACRO()
 
 MACRO (MYSQL_CHECK_ZLIB_WITH_COMPRESS)
 
-    # For NDBCLUSTER: Use bundled zlib by default
-    IF (NOT WITH_ZLIB)
-      SET(WITH_ZLIB "bundled"  CACHE STRING "By default use bundled zlib on this platform")
-    ENDIF()
-  
   IF(WITH_ZLIB STREQUAL "bundled")
     MYSQL_USE_BUNDLED_ZLIB()
   ELSE()

mysql-test/r/func_group_innodb.result

@@ -246,4 +246,34 @@ EXPLAIN SELECT MIN(c) FROM t1 GROUP BY b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	NULL	b	263	NULL	3	Using index for group-by
 DROP TABLE t1;
+#
+# MDEV-17589: Stack-buffer-overflow with indexed varchar (utf8) field
+#
+set @save_innodb_file_format= @@innodb_file_format;
+set @save_innodb_large_prefix= @@innodb_large_prefix;
+set global innodb_file_format = BARRACUDA;
+set global innodb_large_prefix = ON;
+CREATE TABLE t1 (v1 varchar(1020), v2 varchar(2), v3 varchar(2),
+KEY k1 (v3,v2,v1)) ENGINE=InnoDB CHARACTER SET=utf8 ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 VALUES ('king', 'qu','qu'), ('bad','go','go');
+explain
+SELECT MIN(t1.v1) FROM t1 where t1.v2='qu' and t1.v3='qu';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+SELECT MIN(t1.v1) FROM t1 where t1.v2='qu' and t1.v3='qu';
+MIN(t1.v1)
+king
+drop table t1;
+CREATE TABLE t1 (v1 varchar(1024) CHARACTER SET utf8, KEY v1 (v1)) ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 VALUES ('king'), ('bad');
+explain
+SELECT MIN(x.v1) FROM (SELECT t1.* FROM t1 WHERE t1.v1 >= 'p') x;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No matching min/max row
+SELECT MIN(x.v1) FROM (SELECT t1.* FROM t1 WHERE t1.v1 >= 'p') x;
+MIN(x.v1)
+NULL
+drop table t1;
+set global innodb_file_format = @save_innodb_file_format;
+set global innodb_large_prefix = @save_innodb_large_prefix;
 End of 5.5 tests

mysql-test/r/innodb_ext_key.result

@@ -1089,6 +1089,7 @@ from
 t0 A, t0 B, t0 C;
 drop table t0,t1;
 # 
+# 
 # MDEV-10360: Extended keys: index properties depend on index order
 # 
 create table t0 (a int);

mysql-test/r/range_innodb.result

@@ -37,3 +37,21 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t0	ALL	NULL	NULL	NULL	NULL	10	
 1	SIMPLE	t2	range	a,b	b	5	NULL	201	Using where; Using join buffer (flat, BNL join)
 drop table t0,t1,t2;
+CREATE TABLE t1 (
+pk INT PRIMARY KEY, f1 INT, f2 CHAR(1), f3 CHAR(1),
+KEY(f1), KEY(f2)
+) ENGINE=InnoDB;
+INSERT INTO t1 VALUES
+(1,4,'v',NULL),(2,6,'v',NULL),(3,7,'c',NULL),(4,1,'e',NULL),(5,0,'x',NULL),
+(6,7,'i',NULL),(7,7,'e',NULL),(8,1,'p',NULL),(9,7,'s',NULL),(10,1,'j',NULL),
+(11,5,'z',NULL),(12,2,'c',NULL),(13,0,'a',NULL),(14,1,'q',NULL),(15,8,'y',NULL),
+(16,1,'m',NULL),(17,1,'r',NULL),(18,9,'v',NULL),(19,1,'n',NULL);
+CREATE TABLE t2 (f4 INT, f5 CHAR(1)) ENGINE=InnoDB;
+INSERT INTO t2 VALUES (4,'q'),(NULL,'j');
+SELECT * FROM t1 AS t1_1, t1 AS t1_2, t2
+WHERE f5 = t1_2.f2 AND ( t1_1.f1 = 103 AND t1_1.f2 = 'o' OR t1_1.pk < f4 );
+pk	f1	f2	f3	pk	f1	f2	f3	f4	f5
+1	4	v	NULL	14	1	q	NULL	4	q
+2	6	v	NULL	14	1	q	NULL	4	q
+3	7	c	NULL	14	1	q	NULL	4	q
+drop table t1,t2;

mysql-test/r/read_only.result

@@ -168,11 +168,24 @@ flush privileges;
 drop database mysqltest_db1;
 set global read_only= @start_read_only;
 #
+# MDEV-16987 - ALTER DATABASE possible in read-only mode
+#
+CREATE USER user1@localhost;
+GRANT ALTER ON test1.* TO user1@localhost;
+CREATE DATABASE test1;
+SET GLOBAL read_only=1;
+ALTER DATABASE test1 CHARACTER SET utf8;
+ERROR HY000: The MariaDB server is running with the --read-only option so it cannot execute this statement
+SET GLOBAL read_only=0;
+DROP DATABASE test1;
+DROP USER user1@localhost;
+USE test;
+# End of 5.5 tests
+#
 # WL#5968 Implement START TRANSACTION READ (WRITE|ONLY);
 #
 #
 # Test interaction with read_only system variable.
-DROP TABLE IF EXISTS t1;
 CREATE TABLE t1(a INT);
 INSERT INTO t1 VALUES (1), (2);
 CREATE USER user1;
@@ -204,3 +217,4 @@ COMMIT;
 DROP USER user1;
 SET GLOBAL read_only= 0;
 DROP TABLE t1;
+# End of 10.0 tests

mysql-test/suite/innodb/r/innodb-alter.result

@@ -865,6 +865,27 @@ WHERE T.NAME='test/t1';
 NAME
 a
 DROP TABLE t1;
+# and an MDEV-18041 regression related to indexes prefixes
+create table `test` (
+`test_old` varchar(255) NOT NULL,
+`other` varchar(255) NOT NULL,
+PRIMARY KEY (`test_old`,`other`),
+UNIQUE KEY uk (`test_old`(100), `other`)
+) ENGINE=InnoDB;
+select name, pos from information_schema.innodb_SYS_FIELDS where name in ('test_old', 'other', 'test_new');
+name	pos
+test_old	0
+other	1
+test_old	0
+other	1
+alter table `test` CHANGE COLUMN `test_old` `test_new` varchar(255) NOT NULL;
+select name, pos from information_schema.innodb_SYS_FIELDS where name in ('test_old', 'other', 'test_new');
+name	pos
+test_new	0
+other	1
+test_new	0
+other	1
+drop table `test`;
 #
 # BUG 20029625 - HANDLE_FATAL_SIGNAL (SIG=11) IN
 #                DICT_MEM_TABLE_COL_RENAME_LOW

mysql-test/suite/innodb/t/innodb-alter.test

@@ -522,6 +522,19 @@ SELECT C.NAME FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS C INNER JOIN
   WHERE T.NAME='test/t1';
 DROP TABLE t1;
 
+--echo # and an MDEV-18041 regression related to indexes prefixes
+create table `test` (
+  `test_old` varchar(255) NOT NULL,
+  `other` varchar(255) NOT NULL,
+  PRIMARY KEY (`test_old`,`other`),
+  UNIQUE KEY uk (`test_old`(100), `other`)
+) ENGINE=InnoDB;
+
+select name, pos from information_schema.innodb_SYS_FIELDS where name in ('test_old', 'other', 'test_new');
+alter table `test` CHANGE COLUMN `test_old` `test_new` varchar(255) NOT NULL;
+select name, pos from information_schema.innodb_SYS_FIELDS where name in ('test_old', 'other', 'test_new');
+drop table `test`;
+
 
 --echo #
 --echo # BUG 20029625 - HANDLE_FATAL_SIGNAL (SIG=11) IN

mysql-test/suite/rpl/r/rpl_idempotency.result

@@ -67,6 +67,18 @@ a
 -3
 1
 include/check_slave_no_error.inc
+drop table t1, t2;
 DROP TABLE t1, t2;
+include/check_slave_no_error.inc
+create database d;
+create database e;
+create database d;
+create database if not exists e;
+include/check_slave_no_error.inc
+drop database d;
+drop database e;
+drop database d;
+drop database if exists e;
+include/check_slave_no_error.inc
 SET @@global.slave_exec_mode= @old_slave_exec_mode;
 include/rpl_end.inc

mysql-test/suite/rpl/t/rpl_idempotency.test

@@ -75,9 +75,30 @@ SELECT * FROM t1 ORDER BY a;
 SELECT * FROM t2 ORDER BY a;
 --source include/check_slave_no_error.inc
 
+connection slave;
+drop table t1, t2;
+
 connection master;
 DROP TABLE t1, t2;
 sync_slave_with_master;
+--source include/check_slave_no_error.inc
+create database d;
+create database e;
+
+connection master;
+create database d;
+create database if not exists e;
+
+sync_slave_with_master;
+--source include/check_slave_no_error.inc
+drop database d;
+drop database e;
+
+connection master;
+drop database d;
+drop database if exists e;
+sync_slave_with_master;
+--source include/check_slave_no_error.inc
 
 SET @@global.slave_exec_mode= @old_slave_exec_mode;
 

mysql-test/t/func_group_innodb.test

@@ -192,4 +192,30 @@ EXPLAIN SELECT MIN(c) FROM t1 GROUP BY b;
 
 DROP TABLE t1;
 
+--echo #
+--echo # MDEV-17589: Stack-buffer-overflow with indexed varchar (utf8) field
+--echo #
+
+set @save_innodb_file_format= @@innodb_file_format;
+set @save_innodb_large_prefix= @@innodb_large_prefix;
+set global innodb_file_format = BARRACUDA;
+set global innodb_large_prefix = ON;
+
+CREATE TABLE t1 (v1 varchar(1020), v2 varchar(2), v3 varchar(2),
+                KEY k1 (v3,v2,v1)) ENGINE=InnoDB CHARACTER SET=utf8 ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 VALUES ('king', 'qu','qu'), ('bad','go','go');
+explain
+SELECT MIN(t1.v1) FROM t1 where t1.v2='qu' and t1.v3='qu';
+SELECT MIN(t1.v1) FROM t1 where t1.v2='qu' and t1.v3='qu';
+drop table t1;
+
+CREATE TABLE t1 (v1 varchar(1024) CHARACTER SET utf8, KEY v1 (v1)) ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
+INSERT INTO t1 VALUES ('king'), ('bad');
+explain
+SELECT MIN(x.v1) FROM (SELECT t1.* FROM t1 WHERE t1.v1 >= 'p') x;
+SELECT MIN(x.v1) FROM (SELECT t1.* FROM t1 WHERE t1.v1 >= 'p') x;
+drop table t1;
+set global innodb_file_format = @save_innodb_file_format;
+set global innodb_large_prefix = @save_innodb_large_prefix;
+
 --echo End of 5.5 tests

mysql-test/t/innodb_ext_key.test

@@ -725,6 +725,7 @@ if ($rows < 2)
 
 drop table t0,t1;
 
+--echo # 
 --echo # 
 --echo # MDEV-10360: Extended keys: index properties depend on index order
 --echo # 

mysql-test/t/range_innodb.test

@@ -45,3 +45,20 @@ explain select * from t0 left join t2 on t2.a <t0.a and t2.b between 50 and 250;
 
 drop table t0,t1,t2;
 
+CREATE TABLE t1 (
+  pk INT PRIMARY KEY, f1 INT, f2 CHAR(1), f3 CHAR(1),
+  KEY(f1), KEY(f2)
+) ENGINE=InnoDB;
+
+INSERT INTO t1 VALUES
+(1,4,'v',NULL),(2,6,'v',NULL),(3,7,'c',NULL),(4,1,'e',NULL),(5,0,'x',NULL),
+(6,7,'i',NULL),(7,7,'e',NULL),(8,1,'p',NULL),(9,7,'s',NULL),(10,1,'j',NULL),
+(11,5,'z',NULL),(12,2,'c',NULL),(13,0,'a',NULL),(14,1,'q',NULL),(15,8,'y',NULL),
+(16,1,'m',NULL),(17,1,'r',NULL),(18,9,'v',NULL),(19,1,'n',NULL);
+
+CREATE TABLE t2 (f4 INT, f5 CHAR(1)) ENGINE=InnoDB;
+INSERT INTO t2 VALUES (4,'q'),(NULL,'j');
+
+SELECT * FROM t1 AS t1_1, t1 AS t1_2, t2
+WHERE f5 = t1_2.f2 AND ( t1_1.f1 = 103 AND t1_1.f2 = 'o' OR t1_1.pk < f4 );
+drop table t1,t2;

mysql-test/t/read_only.test

@@ -312,6 +312,23 @@ flush privileges;
 drop database mysqltest_db1;
 set global read_only= @start_read_only;
 
+--echo #
+--echo # MDEV-16987 - ALTER DATABASE possible in read-only mode
+--echo #
+CREATE USER user1@localhost;
+GRANT ALTER ON test1.* TO user1@localhost;
+CREATE DATABASE test1;
+SET GLOBAL read_only=1;
+change_user user1;
+--error ER_OPTION_PREVENTS_STATEMENT
+ALTER DATABASE test1 CHARACTER SET utf8;
+change_user root;
+SET GLOBAL read_only=0;
+DROP DATABASE test1;
+DROP USER user1@localhost;
+USE test;
+
+--echo # End of 5.5 tests
 
 --echo #
 --echo # WL#5968 Implement START TRANSACTION READ (WRITE|ONLY);
@@ -320,10 +337,6 @@ set global read_only= @start_read_only;
 --echo #
 --echo # Test interaction with read_only system variable.
 
---disable_warnings
-DROP TABLE IF EXISTS t1;
---enable_warnings
-
 CREATE TABLE t1(a INT);
 INSERT INTO t1 VALUES (1), (2);
 
@@ -373,3 +386,5 @@ DROP TABLE t1;
 
 # Wait till all disconnects are completed
 --source include/wait_until_count_sessions.inc
+
+--echo # End of 10.0 tests

sql/handler.h

@@ -382,6 +382,12 @@ enum enum_alter_inplace_result {
 #define HA_KEY_NULL_LENGTH	1
 #define HA_KEY_BLOB_LENGTH	2
 
+/* Maximum length of any index lookup key, in bytes */
+
+#define MAX_KEY_LENGTH (MAX_DATA_LENGTH_FOR_KEY \
+                         +(MAX_REF_PARTS \
+                          *(HA_KEY_NULL_LENGTH + HA_KEY_BLOB_LENGTH)))
+
 #define HA_LEX_CREATE_TMP_TABLE	1
 #define HA_CREATE_TMP_ALTER     8
 
@@ -3371,14 +3377,14 @@ public:
   uint max_key_parts() const
   { return MY_MIN(MAX_REF_PARTS, max_supported_key_parts()); }
   uint max_key_length() const
-  { return MY_MIN(MAX_KEY_LENGTH, max_supported_key_length()); }
+  { return MY_MIN(MAX_DATA_LENGTH_FOR_KEY, max_supported_key_length()); }
   uint max_key_part_length() const
-  { return MY_MIN(MAX_KEY_LENGTH, max_supported_key_part_length()); }
+  { return MY_MIN(MAX_DATA_LENGTH_FOR_KEY, max_supported_key_part_length()); }
 
   virtual uint max_supported_record_length() const { return HA_MAX_REC_LENGTH; }
   virtual uint max_supported_keys() const { return 0; }
   virtual uint max_supported_key_parts() const { return MAX_REF_PARTS; }
-  virtual uint max_supported_key_length() const { return MAX_KEY_LENGTH; }
+  virtual uint max_supported_key_length() const { return MAX_DATA_LENGTH_FOR_KEY; }
   virtual uint max_supported_key_part_length() const { return 255; }
   virtual uint min_record_length(uint options) const { return 1; }
 

sql/opt_range.cc

@@ -2734,10 +2734,6 @@ bool create_key_parts_for_pseudo_indexes(RANGE_OPT_PARAM *param,
 {
   Field **field_ptr;
   TABLE *table= param->table;
-  partition_info *part_info= NULL;
-  #ifdef WITH_PARTITION_STORAGE_ENGINE
-    part_info= table->part_info;
-  #endif
   uint parts= 0;
 
   for (field_ptr= table->field; *field_ptr; field_ptr++)

sql/partition_info.cc

@@ -1987,12 +1987,12 @@ bool partition_info::check_partition_field_length()
 
   for (i= 0; i < num_part_fields; i++)
     store_length+= get_partition_field_store_length(part_field_array[i]);
-  if (store_length > MAX_KEY_LENGTH)
+  if (store_length > MAX_DATA_LENGTH_FOR_KEY)
     DBUG_RETURN(TRUE);
   store_length= 0;
   for (i= 0; i < num_subpart_fields; i++)
     store_length+= get_partition_field_store_length(subpart_field_array[i]);
-  if (store_length > MAX_KEY_LENGTH)
+  if (store_length > MAX_DATA_LENGTH_FOR_KEY)
     DBUG_RETURN(TRUE);
   DBUG_RETURN(FALSE);
 }

sql/sql_const.h

@@ -33,7 +33,17 @@
 #define MAX_SYS_VAR_LENGTH 32
 #define MAX_KEY MAX_INDEXES                     /* Max used keys */
 #define MAX_REF_PARTS 32			/* Max parts used as ref */
-#define MAX_KEY_LENGTH 3072			/* max possible key */
+
+/*
+  Maximum length of the data part of an index lookup key.
+
+  The "data part" is defined as the value itself, not including the
+  NULL-indicator bytes or varchar length bytes ("the Extras"). We need this
+  value because there was a bug where length of the Extras were not counted.
+
+  You probably need MAX_KEY_LENGTH, not this constant.
+*/
+#define MAX_DATA_LENGTH_FOR_KEY 3072
 #if SIZEOF_OFF_T > 4
 #define MAX_REFLENGTH 8				/* Max length for record ref */
 #else

sql/sql_db.cc

@@ -771,8 +771,7 @@ exit:
 }
 
 
-int mysql_create_db(THD *thd, char *db,
+int mysql_create_db(THD *thd, char *db, DDL_options_st options,
-                    const DDL_options_st &options,
                     const Schema_specification_st *create_info)
 {
   /*
@@ -780,6 +779,9 @@ int mysql_create_db(THD *thd, char *db,
     to it, we need to use a copy to make execution prepared statement- safe.
   */
   Schema_specification_st tmp(*create_info);
+  if (thd->slave_thread &&
+      slave_ddl_exec_mode_options == SLAVE_EXEC_MODE_IDEMPOTENT)
+    options.add(DDL_options::OPT_IF_NOT_EXISTS);
   return mysql_create_db_internal(thd, db, options, &tmp, false);
 }
 
@@ -1059,6 +1061,9 @@ exit:
 
 bool mysql_rm_db(THD *thd,char *db, bool if_exists)
 {
+  if (thd->slave_thread &&
+      slave_ddl_exec_mode_options == SLAVE_EXEC_MODE_IDEMPOTENT)
+    if_exists= true;
   return mysql_rm_db_internal(thd, db, if_exists, false);
 }
 

sql/sql_db.h

@@ -20,8 +20,7 @@
 
 class THD;
 
-int mysql_create_db(THD *thd, char *db,
+int mysql_create_db(THD *thd, char *db, DDL_options_st options,
-                    const DDL_options_st &options,
                     const Schema_specification_st *create);
 bool mysql_alter_db(THD *thd, const char *db,
                     const Schema_specification_st *create);

sql/sql_parse.cc

@@ -1198,6 +1198,7 @@ static bool deny_updates_if_read_only_option(THD *thd, TABLE_LIST *all_tables)
     DBUG_RETURN(FALSE);
 
   if (lex->sql_command == SQLCOM_CREATE_DB ||
+      lex->sql_command == SQLCOM_ALTER_DB ||
       lex->sql_command == SQLCOM_DROP_DB)
     DBUG_RETURN(TRUE);
 

sql/sql_select.cc

@@ -19361,6 +19361,10 @@ test_if_quick_select(JOIN_TAB *tab)
 
   delete tab->select->quick;
   tab->select->quick=0;
+
+  if (tab->table->file->inited != handler::NONE)
+    tab->table->file->ha_index_or_rnd_end();
+
   int res= tab->select->test_quick_select(tab->join->thd, tab->keys,
                                           (table_map) 0, HA_POS_ERROR, 0,
                                           FALSE, /*remove where parts*/FALSE);

sql/table.cc

@@ -1851,7 +1851,7 @@ int TABLE_SHARE::init_from_binary_frm_image(THD *thd, bool write,
             uint pk_part_length= key_first_info->key_part[i].store_length;
             if (keyinfo->ext_key_part_map & 1<<i)
             {
-              if (ext_key_length + pk_part_length > MAX_KEY_LENGTH)
+              if (ext_key_length + pk_part_length > MAX_DATA_LENGTH_FOR_KEY)
               {
                 add_keyparts_for_this_key= i;
                 break;
@@ -1861,9 +1861,9 @@ int TABLE_SHARE::init_from_binary_frm_image(THD *thd, bool write,
           }
         }
 
-        if (add_keyparts_for_this_key < (keyinfo->ext_key_parts -
+        if (add_keyparts_for_this_key < keyinfo->ext_key_parts -
-                                        keyinfo->user_defined_key_parts))
+                                        keyinfo->user_defined_key_parts)
-	{
+        {
           share->ext_key_parts-= keyinfo->ext_key_parts;
           key_part_map ext_key_part_map= keyinfo->ext_key_part_map;
           keyinfo->ext_key_parts= keyinfo->user_defined_key_parts;

storage/innobase/handler/handler0alter.cc

@@ -4650,36 +4650,40 @@ err_exit:
 	     index != NULL;
 	     index = dict_table_get_next_index(index)) {
 
+		bool has_prefixes = false;
+		for (size_t i = 0; i < dict_index_get_n_fields(index); i++) {
+			if (dict_index_get_nth_field(index, i)->prefix_len) {
+				has_prefixes = true;
+				break;
+			}
+		}
+
 		for (ulint i = 0; i < dict_index_get_n_fields(index); i++) {
-			if (my_strcasecmp(
+			const dict_field_t* field
-				system_charset_info,
+			    = dict_index_get_nth_field(index, i);
-				dict_index_get_nth_field(index, i)->name,
+			if (my_strcasecmp(system_charset_info, field->name,
-				from)) {
+					  from)) {
 				continue;
 			}
 
 			info = pars_info_create();
 
+			int pos = i;
+			if (has_prefixes) {
+				pos = (pos << 16) + field->prefix_len;
+			}
+
 			pars_info_add_ull_literal(info, "indexid", index->id);
-			pars_info_add_int4_literal(info, "nth", i);
+			pars_info_add_int4_literal(info, "nth", pos);
 			pars_info_add_str_literal(info, "new", to);
 
 			error = que_eval_sql(
 				info,
 				"PROCEDURE RENAME_SYS_FIELDS_PROC () IS\n"
 				"BEGIN\n"
-
 				"UPDATE SYS_FIELDS SET COL_NAME=:new\n"
 				"WHERE INDEX_ID=:indexid\n"
 				"AND POS=:nth;\n"
-
-				/* Try again, in case there is a prefix_len
-				encoded in SYS_FIELDS.POS */
-
-				"UPDATE SYS_FIELDS SET COL_NAME=:new\n"
-				"WHERE INDEX_ID=:indexid\n"
-				"AND POS>=65536*:nth AND POS<65536*(:nth+1);\n"
-
 				"END;\n",
 				FALSE, trx);
 

storage/innobase/row/row0mysql.cc

@@ -4470,7 +4470,8 @@ do_drop:
 					char msg_tablename[MAX_FULL_NAME_LEN + 1];
 
 					innobase_format_name(
-						msg_tablename, sizeof(tablename),
+						msg_tablename,
+						sizeof msg_tablename,
 						tablename, FALSE);
 
 					ib_logf(IB_LOG_LEVEL_INFO,

storage/xtradb/handler/handler0alter.cc

@@ -4666,36 +4666,40 @@ err_exit:
 	     index != NULL;
 	     index = dict_table_get_next_index(index)) {
 
+		bool has_prefixes = false;
+		for (size_t i = 0; i < dict_index_get_n_fields(index); i++) {
+			if (dict_index_get_nth_field(index, i)->prefix_len) {
+				has_prefixes = true;
+				break;
+			}
+		}
+
 		for (ulint i = 0; i < dict_index_get_n_fields(index); i++) {
-			if (my_strcasecmp(
+			const dict_field_t* field
-				system_charset_info,
+			    = dict_index_get_nth_field(index, i);
-				dict_index_get_nth_field(index, i)->name,
+			if (my_strcasecmp(system_charset_info, field->name,
-				from)) {
+					  from)) {
 				continue;
 			}
 
 			info = pars_info_create();
 
+			int pos = i;
+			if (has_prefixes) {
+				pos = (pos << 16) + field->prefix_len;
+			}
+
 			pars_info_add_ull_literal(info, "indexid", index->id);
-			pars_info_add_int4_literal(info, "nth", i);
+			pars_info_add_int4_literal(info, "nth", pos);
 			pars_info_add_str_literal(info, "new", to);
 
 			error = que_eval_sql(
 				info,
 				"PROCEDURE RENAME_SYS_FIELDS_PROC () IS\n"
 				"BEGIN\n"
-
 				"UPDATE SYS_FIELDS SET COL_NAME=:new\n"
 				"WHERE INDEX_ID=:indexid\n"
 				"AND POS=:nth;\n"
-
-				/* Try again, in case there is a prefix_len
-				encoded in SYS_FIELDS.POS */
-
-				"UPDATE SYS_FIELDS SET COL_NAME=:new\n"
-				"WHERE INDEX_ID=:indexid\n"
-				"AND POS>=65536*:nth AND POS<65536*(:nth+1);\n"
-
 				"END;\n",
 				FALSE, trx);
 

storage/xtradb/row/row0mysql.cc

@@ -4481,7 +4481,8 @@ do_drop:
 					char msg_tablename[MAX_FULL_NAME_LEN + 1];
 
 					innobase_format_name(
-						msg_tablename, sizeof(tablename),
+						msg_tablename,
+						sizeof msg_tablename,
 						tablename, FALSE);
 
 					ib_logf(IB_LOG_LEVEL_INFO,

unittest/mysys/lf-t.c

@@ -48,9 +48,6 @@ pthread_handler_t test_lf_pinbox(void *arg)
     pins= lf_pinbox_get_pins(&lf_allocator.pinbox);
   }
   lf_pinbox_put_pins(pins);
-  pthread_mutex_lock(&mutex);
-  if (!--running_threads) pthread_cond_signal(&cond);
-  pthread_mutex_unlock(&mutex);
 
   if (with_my_thread_init)
     my_thread_end();
@@ -105,7 +102,6 @@ pthread_handler_t test_lf_alloc(void *arg)
     bad|= lf_allocator.mallocs - lf_alloc_pool_count(&lf_allocator);
 #endif
   }
-  if (!--running_threads) pthread_cond_signal(&cond);
   pthread_mutex_unlock(&mutex);
 
   if (with_my_thread_init)
@@ -172,7 +168,6 @@ pthread_handler_t test_lf_hash(void *arg)
          lf_hash.size, inserts, scans);
     bad|= lf_hash.count;
   }
-  if (!--running_threads) pthread_cond_signal(&cond);
   pthread_mutex_unlock(&mutex);
   if (with_my_thread_init)
     my_thread_end();

unittest/mysys/my_atomic-t.c

@@ -29,9 +29,6 @@ pthread_handler_t test_atomic_add(void *arg)
     my_atomic_add32(&bad, x);
     my_atomic_add32(&bad, -x);
   }
-  pthread_mutex_lock(&mutex);
-  if (!--running_threads) pthread_cond_signal(&cond);
-  pthread_mutex_unlock(&mutex);
   return 0;
 }
 
@@ -47,13 +44,6 @@ pthread_handler_t test_atomic_add64(void *arg)
     my_atomic_add64(&a64, x);
     my_atomic_add64(&a64, -x);
   }
-  pthread_mutex_lock(&mutex);
-  if (!--running_threads)
-  {
-    bad= (a64 != 0);
-    pthread_cond_signal(&cond);
-  }
-  pthread_mutex_unlock(&mutex);
   return 0;
 }
 
@@ -83,9 +73,6 @@ pthread_handler_t test_atomic_fas(void *arg)
 
   my_atomic_add32(&bad, -x);
 
-  pthread_mutex_lock(&mutex);
-  if (!--running_threads) pthread_cond_signal(&cond);
-  pthread_mutex_unlock(&mutex);
   return 0;
 }
 
@@ -109,9 +96,6 @@ pthread_handler_t test_atomic_cas(void *arg)
       ok= my_atomic_cas32(&bad, &y, y-x);
     } while (!ok) ;
   }
-  pthread_mutex_lock(&mutex);
-  if (!--running_threads) pthread_cond_signal(&cond);
-  pthread_mutex_unlock(&mutex);
   return 0;
 }
 
@@ -146,4 +130,5 @@ void do_tests()
   }
   a64=0;
   test_concurrently("my_atomic_add64", test_atomic_add64, THREADS, CYCLES);
+  bad= (a64 != 0);
 }

unittest/mysys/thr_template.c

@@ -20,35 +20,34 @@
 #include <tap.h>
 
 volatile uint32 bad;
-pthread_attr_t thr_attr;
 pthread_mutex_t mutex;
-pthread_cond_t cond;
-uint running_threads;
 
 void do_tests();
 
 void test_concurrently(const char *test, pthread_handler handler, int n, int m)
 {
-  pthread_t t;
+  pthread_t *threads= malloc(n * sizeof(pthread_t));
+  int i;
   ulonglong now= my_interval_timer();
 
+  assert(threads);
   bad= 0;
 
   diag("Testing %s with %d threads, %d iterations... ", test, n, m);
-  for (running_threads= n ; n ; n--)
+  for (i= n; i; i--)
   {
-    if (pthread_create(&t, &thr_attr, handler, &m) != 0)
+    if (pthread_create(&threads[i], 0, handler, &m) != 0)
     {
       diag("Could not create thread");
       abort();
     }
   }
-  pthread_mutex_lock(&mutex);
+
-  while (running_threads)
+  for (i= n; i; i--)
-    pthread_cond_wait(&cond, &mutex);
+    pthread_join(threads[i], 0);
-  pthread_mutex_unlock(&mutex);
 
   now= my_interval_timer() - now;
+  free(threads);
   ok(!bad, "tested %s in %g secs (%d)", test, ((double)now)/1e9, bad);
 }
 
@@ -60,9 +59,6 @@ int main(int argc __attribute__((unused)), char **argv)
     DBUG_SET_INITIAL(argv[1]);
 
   pthread_mutex_init(&mutex, 0);
-  pthread_cond_init(&cond, 0);
-  pthread_attr_init(&thr_attr);
-  pthread_attr_setdetachstate(&thr_attr,PTHREAD_CREATE_DETACHED);
 
 #define CYCLES 3000
 #define THREADS 30
@@ -71,16 +67,7 @@ int main(int argc __attribute__((unused)), char **argv)
 
   do_tests();
 
-  /*
-    workaround until we know why it crashes randomly on some machine
-    (BUG#22320).
-  */
-#ifdef NOT_USED
-  sleep(2);
-#endif
   pthread_mutex_destroy(&mutex);
-  pthread_cond_destroy(&cond);
-  pthread_attr_destroy(&thr_attr);
   my_end(0);
   return exit_status();
 }

unittest/mysys/waiting_threads-t.c

@@ -136,10 +136,8 @@ retry:
   pthread_mutex_unlock(&lock);
   pthread_mutex_unlock(& thds[id].lock);
   wt_thd_destroy(& thds[id].thd);
-
-  if (!--running_threads) /* now, signal when everybody is done with deinit */
-    pthread_cond_signal(&cond);
   pthread_mutex_unlock(&mutex);
+
   DBUG_PRINT("wt", ("exiting"));
   my_thread_end();
   return 0;