Merge 10.4 into 10.5

mysql-test/suite/innodb/r/innodb-index-online.result

@@ -358,7 +358,7 @@ SET @rowlog_decrypt_1=
 WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_decrypted');
 connection con1;
 SET DEBUG_SYNC = 'row_log_apply_before SIGNAL c2f_created WAIT_FOR dml3_done';
-ALTER TABLE t1 ADD INDEX c2f(c2);
+ALTER TABLE t1 ADD INDEX c2f(c22f), CHANGE c2 c22f INT;
 connection default;
 SET DEBUG_SYNC = 'now WAIT_FOR c2f_created';
 SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
@@ -397,7 +397,6 @@ SET DEBUG_SYNC = 'now SIGNAL dml3_done';
 connection con1;
 Warnings:
 Note	1831	Duplicate index `c2f`. This is deprecated and will be disallowed in a future release
-ALTER TABLE t1 CHANGE c2 c22f INT;
 SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
 name	count
 ddl_background_drop_indexes	0

mysql-test/suite/innodb/t/innodb-index-online.test

@@ -318,9 +318,7 @@ connection con1;
 # Accumulate and apply some modification log.
 SET DEBUG_SYNC = 'row_log_apply_before SIGNAL c2f_created WAIT_FOR dml3_done';
 --send
-# FIXME: MDEV-13668
-#ALTER TABLE t1 ADD INDEX c2f(c22f), CHANGE c2 c22f INT;
-ALTER TABLE t1 ADD INDEX c2f(c2);
+ALTER TABLE t1 ADD INDEX c2f(c22f), CHANGE c2 c22f INT;
 
 connection default;
 SET DEBUG_SYNC = 'now WAIT_FOR c2f_created';
@@ -345,8 +343,6 @@ SET DEBUG_SYNC = 'now SIGNAL dml3_done';
 
 connection con1;
 reap;
-# FIXME: MDEV-13668
-ALTER TABLE t1 CHANGE c2 c22f INT;
 
 eval $innodb_metrics_select;
 

mysql-test/suite/innodb_fts/r/misc_debug2.result

@@ -6,3 +6,17 @@ INSERT INTO mdev21563 VALUES('This is a test');
 ALTER TABLE mdev21563 DISCARD TABLESPACE;
 # restart
 DROP TABLE mdev21563;
+#
+# MDEV-29342 Assertion failure in file que0que.cc line 728
+#
+CREATE TABLE t1(f1 CHAR(100), FULLTEXT idx(f1))ENGINE=InnoDB;
+INSERT INTO t1 VALUES('mysql'), ('innodb');
+set debug_dbug="+d,fts_instrument_sync_debug";
+INSERT INTO t1 VALUES('test');
+set debug_dbug="-d,fts_instrument_sync_debug";
+INSERT INTO t1 VALUES('This is a fts issue');
+# restart
+set debug_dbug="+d,fts_instrument_sync_debug";
+UPDATE t1 SET f1="mariadb";
+set debug_dbug="-d,fts_instrument_sync_debug";
+DROP TABLE t1;

mysql-test/suite/innodb_fts/t/misc_debug2.test

@@ -10,3 +10,18 @@ INSERT INTO mdev21563 VALUES('This is a test');
 ALTER TABLE mdev21563 DISCARD TABLESPACE;
 --source include/restart_mysqld.inc
 DROP TABLE mdev21563;
+
+--echo #
+--echo # MDEV-29342 Assertion failure in file que0que.cc line 728
+--echo #
+CREATE TABLE t1(f1 CHAR(100), FULLTEXT idx(f1))ENGINE=InnoDB;
+INSERT INTO t1 VALUES('mysql'), ('innodb');
+set debug_dbug="+d,fts_instrument_sync_debug";
+INSERT INTO t1 VALUES('test');
+set debug_dbug="-d,fts_instrument_sync_debug";
+INSERT INTO t1 VALUES('This is a fts issue');
+--source include/restart_mysqld.inc
+set debug_dbug="+d,fts_instrument_sync_debug";
+UPDATE t1 SET f1="mariadb";
+set debug_dbug="-d,fts_instrument_sync_debug";
+DROP TABLE t1;

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

+include/master-slave.inc
+[connection master]
+#
+# Set replica to ignore system tables
+connection slave;
+include/stop_slave.inc
+SET @@GLOBAL.replicate_wild_ignore_table="mysql.%";
+include/start_slave.inc
+#
+# Trying to execute REVOKE ALL PRIVILEGES on a non-existent user and
+# DROP USER on a list of users where not all users exist should error
+# and be written into the binary log
+connection master;
+REVOKE ALL PRIVILEGES, GRANT OPTION FROM 'nonexistentuser'@'%';
+ERROR HY000: Can't revoke all privileges for one or more of the requested users
+CREATE USER 'testuser'@'localhost' IDENTIFIED by '';
+DROP USER 'testuser'@'localhost', 'nonexistentuser'@'%';
+ERROR HY000: Operation DROP USER failed for 'nonexistentuser'@'%'
+#
+# Ensure the events exist in the primary's binary log
+FLUSH BINARY LOGS;
+# MYSQL_BINLOG MYSQLD_DATADIR/binlog_file > MYSQL_TMP_DIR/mysqlbinlog_out.sql
+# There should be three Query events: REVOKE, CREATE USER, and DROP USER
+FOUND 3 /Query/ in mysqlbinlog_out.sql
+FOUND 1 /REVOKE ALL PRIVILEGES/ in mysqlbinlog_out.sql
+FOUND 1 /CREATE USER/ in mysqlbinlog_out.sql
+FOUND 1 /DROP USER/ in mysqlbinlog_out.sql
+#
+# Ensure that the replica receives the event without error
+connection slave;
+Last_SQL_Error = 
+Last_SQL_Errno = 0
+#
+# Clean up
+connection slave;
+include/stop_slave.inc
+SET @@GLOBAL.replicate_wild_ignore_table="";
+include/start_slave.inc
+include/rpl_end.inc

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

+#
+# Purpose:
+#   This test ensures that a binlogged Query_log_event which failed on the
+# primary server does not break replication if it is ignored by Grant_tables
+# on the replica. The bug reported by MDEV-28530 shows this with
+# REVOKE ALL PRIVILEGES.. using a non-existent user. The primary will binlog
+# the REVOKE command with an error code, and the replica will think the command
+# executed with success because the replication filter will ignore the command
+# while accessing the Grant_tables classes. When the replica performs an error
+# check, it sees the difference between the error codes, and replication
+# breaks.
+#
+# Methodology:
+#   Using a replica configured with replicate_wild_ignore_table="schema.%",
+# on the primary, execute REVOKE ALL PRVILEGES using a non-existent user and
+# DROP USER using a list of users where not all users exist, and ensure that
+# the replica acknowledges and ignores the events without erroring.
+#
+# References:
+#   MDEV-28530: Revoking privileges from a non-existing user on a master breaks
+#               replication on the slave in the presence of replication filters
+#
+
+source include/master-slave.inc;
+source include/have_binlog_format_statement.inc;
+
+--echo #
+--echo # Set replica to ignore system tables
+connection slave;
+let $old_filter= query_get_value(SHOW SLAVE STATUS, Replicate_Wild_Ignore_Table, 1);
+source include/stop_slave.inc;
+SET @@GLOBAL.replicate_wild_ignore_table="mysql.%";
+source include/start_slave.inc;
+
+
+--echo #
+--echo # Trying to execute REVOKE ALL PRIVILEGES on a non-existent user and
+--echo # DROP USER on a list of users where not all users exist should error
+--echo # and be written into the binary log
+--connection master
+
+--error 1269
+REVOKE ALL PRIVILEGES, GRANT OPTION FROM 'nonexistentuser'@'%';
+
+CREATE USER 'testuser'@'localhost' IDENTIFIED by '';
+--error 1396
+DROP USER 'testuser'@'localhost', 'nonexistentuser'@'%';
+--save_master_pos
+
+
+--echo #
+--echo # Ensure the events exist in the primary's binary log
+--let $MYSQLD_DATADIR= `select @@datadir`
+--let $binlog_file=query_get_value(SHOW MASTER STATUS, File, 1)
+FLUSH BINARY LOGS;
+--echo # MYSQL_BINLOG MYSQLD_DATADIR/binlog_file > MYSQL_TMP_DIR/mysqlbinlog_out.sql
+--exec $MYSQL_BINLOG $MYSQLD_DATADIR/$binlog_file > $MYSQL_TMP_DIR/mysqlbinlog_out.sql
+
+--echo # There should be three Query events: REVOKE, CREATE USER, and DROP USER
+--let SEARCH_FILE= $MYSQL_TMP_DIR/mysqlbinlog_out.sql
+
+--let SEARCH_PATTERN= Query
+--source include/search_pattern_in_file.inc
+
+--let SEARCH_PATTERN= REVOKE ALL PRIVILEGES
+--source include/search_pattern_in_file.inc
+
+--let SEARCH_PATTERN= CREATE USER
+--source include/search_pattern_in_file.inc
+
+--let SEARCH_PATTERN= DROP USER
+--source include/search_pattern_in_file.inc
+
+
+--echo #
+--echo # Ensure that the replica receives the event without error
+connection slave;
+--sync_with_master
+let $error= query_get_value(SHOW SLAVE STATUS, Last_SQL_Error, 1);
+--echo Last_SQL_Error = $error
+let $errno= query_get_value(SHOW SLAVE STATUS, Last_SQL_Errno, 1);
+--echo Last_SQL_Errno = $errno
+
+
+--echo #
+--echo # Clean up
+--connection slave
+source include/stop_slave.inc;
+--eval SET @@GLOBAL.replicate_wild_ignore_table="$old_filter"
+source include/start_slave.inc;
+
+--source include/rpl_end.inc

plugin/disks/information_schema_disks.cc

@@ -108,7 +108,7 @@ static int disks_table_add_row_stat(
 #else
     if (info.f_flags & MNT_RDONLY)
 #endif
-	return 0;
+       return 0;
 
     pTable->field[0]->store(zDisk, strlen(zDisk), system_charset_info);
     pTable->field[1]->store(zPath, strlen(zPath), system_charset_info);
@@ -214,15 +214,15 @@ static int disks_fill_table(THD* pThd, TABLE_LIST* pTables, Item* pCond)
         )
     {
         struct stat f;
-	const char *path, *point;
+        const char *path, *point;
 #ifdef HAVE_SETMNTENT
-	path= pEnt->mnt_dir;
-	point= pEnt->mnt_fsname;
+        path= pEnt->mnt_dir;
+        point= pEnt->mnt_fsname;
 #else
-	path= pEnt->mnt_mountp;
-	point= pEnt->mnt_special;
+        path= pEnt->mnt_mountp;
+        point= pEnt->mnt_special;
 #endif
-	// Try to keep to real storage by excluding
+        // Try to keep to real storage by excluding
         // read only mounts, and mount points that aren't directories
         if (hasmntopt(pEnt, MNTOPT_RO) != NULL)
             continue;

sql/log_event_server.cc

@@ -1912,6 +1912,13 @@ int Query_log_event::do_apply_event(rpl_group_info *rgi,
         thd->update_server_status();
         log_slow_statement(thd);
         thd->lex->restore_set_statement_var();
+
+        /*
+          When THD::slave_expected_error gets reset inside execution stack
+          that is the case of to be ignored event. In this case the expected
+          error must change to the reset value as well.
+        */
+        expected_error= thd->slave_expected_error;
       }
 
       thd->variables.option_bits&= ~OPTION_MASTER_SQL_ERROR;

sql/share/errmsg-utf8.txt

@@ -7144,8 +7144,9 @@ ER_BINLOG_UNSAFE_NONTRANS_AFTER_TRANS
         chi "语句不安全，因为它在访问同一事务中访问事务表后访问非事务性表"
         eng "Statement is unsafe because it accesses a non-transactional table after accessing a transactional table within the same transaction"
 ER_MESSAGE_AND_STATEMENT
-        chi "%s语句：%s"
-        eng "%s Statement: %s"
+  chi "%s．语句：%s"
+  eng "%s. Statement: %s"
+
 ER_SLAVE_CONVERSION_FAILED
         chi "列%d表'%-.192s.%-.192s'无法从'%-.50s'类型为'%-.50s'"
         eng "Column %d of table '%-.192s.%-.192s' cannot be converted from type '%-.50s' to type '%-.50s'"

sql/sql_acl.cc

@@ -2094,9 +2094,11 @@ class Grant_tables
         some kind of updates to the mysql.% tables.
       */
       Rpl_filter *rpl_filter= thd->system_thread_info.rpl_sql_info->rpl_filter;
-
       if (rpl_filter->is_on() && !rpl_filter->tables_ok(0, tables))
+      {
+        thd->slave_expected_error= 0;
         DBUG_RETURN(1);
+      }
     }
     DBUG_RETURN(0);
   }

sql/sql_class.h

@@ -3361,6 +3361,8 @@ class THD: public THD_count, /* this must be first */
   /*
     In case of a slave, set to the error code the master got when executing
     the query. 0 if no error on the master.
+    The stored into variable master error code may get reset inside
+    execution stack when the event turns out to be ignored.
   */
   int	     slave_expected_error;
   enum_sql_command last_sql_command;  // Last sql_command exceuted in mysql_execute_command()

storage/innobase/fts/fts0fts.cc

@@ -2642,7 +2642,7 @@ fts_cmp_set_sync_doc_id(
 	}
 	mutex_exit(&cache->doc_id_lock);
 
-	if (cmp_doc_id > *doc_id) {
+	if (cmp_doc_id && cmp_doc_id >= *doc_id) {
 		error = fts_update_sync_doc_id(
 			table, cache->synced_doc_id, trx);
 	}

storage/spider/mysql-test/spider/bugfix/r/mdev_27172.result

+#
+# MDEV-27172 Prefix indices on Spider tables may lead to wrong query results
+#
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3
+connection child2_1;
+SET @general_log_backup = @@global.general_log;
+SET @log_output_backup = @@global.log_output;
+SET @@global.general_log = 1;
+SET @@global.log_output = "TABLE";
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+CREATE TABLE tbl_a (
+id int NOT NULL,
+greeting  VARCHAR(255),
+KEY(greeting)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+CREATE TABLE tbl_b (
+id int NOT NULL,
+greeting VARCHAR(255),
+KEY k (greeting(5))
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+CREATE TABLE tbl_c (
+id int NOT NULL,
+greeting TEXT,
+KEY k (greeting(5))
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+TRUNCATE TABLE mysql.general_log;
+connection master_1;
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+CREATE TABLE tbl_a (
+id int NOT NULL,
+greeting VARCHAR(255),
+KEY k (greeting)
+) ENGINE=Spider DEFAULT CHARSET=utf8 COMMENT='table "tbl_a", srv "s_2_1"';
+INSERT INTO tbl_a VALUES (1, "Hi!"),(2, "Aloha!"),(3, "Aloha!!!");
+SELECT * FROM tbl_a WHERE greeting = "Aloha!"
+  AND CASE greeting WHEN "Aloha!" THEN "one" ELSE 'more' END = "one";
+id	greeting
+2	Aloha!
+CREATE TABLE tbl_b (
+id int NOT NULL,
+greeting VARCHAR(255),
+KEY k (greeting(5))
+) ENGINE=Spider DEFAULT CHARSET=utf8 COMMENT='table "tbl_b", srv "s_2_1"';
+INSERT INTO tbl_b VALUES (1, "Hi!"),(2, "Aloha!"),(3, "Aloha!!!");
+SELECT * FROM tbl_b WHERE greeting = "Aloha!"
+  AND CASE greeting WHEN "Aloha!" THEN "one" ELSE 'more' END = "one";
+id	greeting
+2	Aloha!
+CREATE TABLE tbl_c (
+id int NOT NULL,
+greeting TEXT,
+KEY k (greeting(5))
+) ENGINE=Spider DEFAULT CHARSET=utf8 COMMENT='table "tbl_c", srv "s_2_1"';
+INSERT INTO tbl_c VALUES (1, "Hi!"),(2, "Aloha!"),(3, "Aloha!!!");
+SELECT * FROM tbl_c WHERE greeting = "Aloha!"
+  AND CASE greeting WHEN "Aloha!" THEN "one" ELSE 'more' END = "one";
+id	greeting
+2	Aloha!
+connection child2_1;
+SELECT argument FROM mysql.general_log WHERE argument LIKE 'select %';
+argument
+select `id`,`greeting` from `auto_test_remote`.`tbl_a` where `greeting` = 'Aloha!' and ((`greeting` = 'Aloha!'))
+select `id`,`greeting` from `auto_test_remote`.`tbl_b` where `greeting` like 'Aloha%' and ((`greeting` = 'Aloha!'))
+select `id`,`greeting` from `auto_test_remote`.`tbl_c` where `greeting` like 'Aloha%' and ((`greeting` = 'Aloha!'))
+SELECT argument FROM mysql.general_log WHERE argument LIKE 'select %'
+connection child2_1;
+SET @@global.general_log = @general_log_backup;
+SET @@global.log_output = @log_output_backup;
+DROP DATABASE auto_test_remote;
+connection master_1;
+DROP DATABASE auto_test_local;
+for master_1
+for child2
+child2_1
+child2_2
+child2_3
+for child3

storage/spider/mysql-test/spider/bugfix/t/mdev_27172.cnf

+!include include/default_mysqld.cnf
+!include ../my_1_1.cnf
+!include ../my_2_1.cnf

storage/spider/mysql-test/spider/bugfix/t/mdev_27172.test

+--echo #
+--echo # MDEV-27172 Prefix indices on Spider tables may lead to wrong query results
+--echo #
+
+--disable_query_log
+--disable_result_log
+--source ../../t/test_init.inc
+--enable_result_log
+--enable_query_log
+
+--connection child2_1
+SET @general_log_backup = @@global.general_log;
+SET @log_output_backup = @@global.log_output;
+SET @@global.general_log = 1;
+SET @@global.log_output = "TABLE";
+
+CREATE DATABASE auto_test_remote;
+USE auto_test_remote;
+
+eval CREATE TABLE tbl_a (
+  id int NOT NULL,
+  greeting  VARCHAR(255),
+  KEY(greeting)
+) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+
+eval CREATE TABLE tbl_b (
+  id int NOT NULL,
+  greeting VARCHAR(255),
+  KEY k (greeting(5))
+) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+
+eval CREATE TABLE tbl_c (
+  id int NOT NULL,
+  greeting TEXT,
+  KEY k (greeting(5))
+) $CHILD2_1_ENGINE $CHILD2_1_CHARSET;
+
+TRUNCATE TABLE mysql.general_log;
+
+--connection master_1
+CREATE DATABASE auto_test_local;
+USE auto_test_local;
+
+# = (equality)
+eval CREATE TABLE tbl_a (
+  id int NOT NULL,
+  greeting VARCHAR(255),
+  KEY k (greeting)
+) $MASTER_1_ENGINE $MASTER_1_CHARSET COMMENT='table "tbl_a", srv "s_2_1"';
+
+INSERT INTO tbl_a VALUES (1, "Hi!"),(2, "Aloha!"),(3, "Aloha!!!");
+SELECT * FROM tbl_a WHERE greeting = "Aloha!"
+  AND CASE greeting WHEN "Aloha!" THEN "one" ELSE 'more' END = "one"; # hack to disable GBH
+
+# LIKE
+eval CREATE TABLE tbl_b (
+  id int NOT NULL,
+  greeting VARCHAR(255),
+  KEY k (greeting(5))
+) $MASTER_1_ENGINE $MASTER_1_CHARSET COMMENT='table "tbl_b", srv "s_2_1"';
+
+INSERT INTO tbl_b VALUES (1, "Hi!"),(2, "Aloha!"),(3, "Aloha!!!");
+SELECT * FROM tbl_b WHERE greeting = "Aloha!"
+  AND CASE greeting WHEN "Aloha!" THEN "one" ELSE 'more' END = "one"; # hack to disable GBH
+
+# LIKE
+eval CREATE TABLE tbl_c (
+  id int NOT NULL,
+  greeting TEXT,
+  KEY k (greeting(5))
+) $MASTER_1_ENGINE $MASTER_1_CHARSET COMMENT='table "tbl_c", srv "s_2_1"';
+
+INSERT INTO tbl_c VALUES (1, "Hi!"),(2, "Aloha!"),(3, "Aloha!!!");
+SELECT * FROM tbl_c WHERE greeting = "Aloha!"
+  AND CASE greeting WHEN "Aloha!" THEN "one" ELSE 'more' END = "one"; # hack to disable GBH
+
+--connection child2_1
+SELECT argument FROM mysql.general_log WHERE argument LIKE 'select %';
+
+--connection child2_1
+SET @@global.general_log = @general_log_backup;
+SET @@global.log_output = @log_output_backup;
+DROP DATABASE auto_test_remote;
+
+--connection master_1
+DROP DATABASE auto_test_local;
+
+--disable_query_log
+--disable_result_log
+--source ../../t/test_deinit.inc
+--enable_result_log
+--enable_query_log

storage/spider/spd_db_include.h

 /* Copyright (C) 2008-2020 Kentoku Shiba
-   Copyright (C) 2019-2020 MariaDB corp
+   Copyright (C) 2019, 2022, MariaDB Corporation.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -101,6 +101,8 @@ typedef st_spider_result SPIDER_RESULT;
 
 #define SPIDER_SQL_DOT_STR "."
 #define SPIDER_SQL_DOT_LEN (sizeof(SPIDER_SQL_DOT_STR) - 1)
+#define SPIDER_SQL_PERCENT_STR "%"
+#define SPIDER_SQL_PERCENT_LEN (sizeof(SPIDER_SQL_PERCENT_STR) - 1)
 #define SPIDER_SQL_HYPHEN_STR "-"
 #define SPIDER_SQL_HYPHEN_LEN (sizeof(SPIDER_SQL_HYPHEN_STR) - 1)
 
@@ -172,6 +174,8 @@ typedef st_spider_result SPIDER_RESULT;
 #define SPIDER_SQL_IN_LEN (sizeof(SPIDER_SQL_IN_STR) - 1)
 #define SPIDER_SQL_NOT_IN_STR "not in("
 #define SPIDER_SQL_NOT_IN_LEN (sizeof(SPIDER_SQL_NOT_IN_STR) - 1)
+#define SPIDER_SQL_LIKE_STR " like "
+#define SPIDER_SQL_LIKE_LEN (sizeof(SPIDER_SQL_LIKE_STR) - 1)
 #define SPIDER_SQL_NOT_LIKE_STR "not like"
 #define SPIDER_SQL_NOT_LIKE_LEN (sizeof(SPIDER_SQL_NOT_LIKE_STR) - 1)
 #define SPIDER_SQL_AS_CHAR_STR " as char"
@@ -853,13 +857,10 @@ class spider_db_util
   virtual int append_escaped_name_quote(
     spider_string *str
   ) = 0;
-  virtual int append_column_value(
-    ha_spider *spider,
-    spider_string *str,
-    Field *field,
-    const uchar *new_ptr,
-    CHARSET_INFO *access_charset
-  ) = 0;
+  virtual int append_column_value(ha_spider *spider, spider_string *str,
+                                  Field *field, const uchar *new_ptr,
+                                  bool is_like,
+                                  CHARSET_INFO *access_charset)= 0;
   virtual int append_trx_isolation(
     spider_string *str,
     int trx_isolation

storage/spider/spd_db_mysql.h

@@ -22,37 +22,33 @@ class spider_db_mbase_util: public spider_db_util
     spider_string *str,
     const char *name,
     uint name_length
-  );
+  ) override;
   int append_name_with_charset(
     spider_string *str,
     const char *name,
     uint name_length,
     CHARSET_INFO *name_charset
-  );
+  ) override;
   int append_escaped_name(
     spider_string *str,
     const char *name,
     uint name_length
-  );
+  ) override;
   int append_escaped_name_with_charset(
     spider_string *str,
     const char *name,
     uint name_length,
     CHARSET_INFO *name_charset
-  );
+  ) override;
   bool is_name_quote(
     const char head_code
-  );
+  ) override;
   int append_escaped_name_quote(
     spider_string *str
-  );
-  int append_column_value(
-    ha_spider *spider,
-    spider_string *str,
-    Field *field,
-    const uchar *new_ptr,
-    CHARSET_INFO *access_charset
-  );
+  ) override;
+  int append_column_value(ha_spider *spider, spider_string *str, Field *field,
+                          const uchar *new_ptr, bool is_like,
+                          CHARSET_INFO *access_charset) override;
   int append_from_with_alias(
     spider_string *str,
     const char **table_names,
@@ -66,19 +62,19 @@ class spider_db_mbase_util: public spider_db_util
   int append_trx_isolation(
     spider_string *str,
     int trx_isolation
-  );
+  ) override;
   int append_autocommit(
     spider_string *str,
     bool autocommit
-  );
+  ) override;
   int append_sql_log_off(
     spider_string *str,
     bool sql_log_off
-  );
+  ) override;
   int append_wait_timeout(
     spider_string *str,
     int wait_timeout
-  );
+  ) override;
   virtual int append_sql_mode_internal(
     spider_string *str,
     sql_mode_t sql_mode
@@ -86,25 +82,25 @@ class spider_db_mbase_util: public spider_db_util
   int append_sql_mode(
     spider_string *str,
     sql_mode_t sql_mode
-  );
+  ) override;
   int append_time_zone(
     spider_string *str,
     Time_zone *time_zone
-  );
+  ) override;
   int append_loop_check(
     spider_string *str,
     SPIDER_CONN *conn
-  );
+  ) override;
   int append_start_transaction(
     spider_string *str
-  );
+  ) override;
   int append_xa_start(
     spider_string *str,
     XID *xid
-  );
+  ) override;
   int append_lock_table_head(
     spider_string *str
-  );
+  ) override;
   int append_lock_table_body(
     spider_string *str,
     const char *db_name,
@@ -114,13 +110,13 @@ class spider_db_mbase_util: public spider_db_util
     uint table_name_length,
     CHARSET_INFO *table_name_charset,
     int lock_type
-  );
+  ) override;
   int append_lock_table_tail(
     spider_string *str
-  );
+  ) override;
   int append_unlock_table(
     spider_string *str
-  );
+  ) override;
   int open_item_func(
     Item_func *item_func,
     ha_spider *spider,
@@ -129,7 +125,7 @@ class spider_db_mbase_util: public spider_db_util
     uint alias_length,
     bool use_fields,
     spider_fields *fields
-  );
+  ) override;
 #ifdef HANDLER_HAS_DIRECT_AGGREGATE
   int open_item_sum_func(
     Item_sum *item_sum,
@@ -139,12 +135,12 @@ class spider_db_mbase_util: public spider_db_util
     uint alias_length,
     bool use_fields,
     spider_fields *fields
-  );
+  ) override;
 #endif
   int append_escaped_util(
     spider_string *to,
     String *from
-  );
+  ) override;
 #ifdef SPIDER_HAS_GROUP_BY_HANDLER
   int append_table(
     ha_spider *spider,
@@ -186,18 +182,18 @@ class spider_db_mbase_util: public spider_db_util
     spider_string *str,
     TABLE_LIST *table_list,
     uint table_count
-  );
+  ) override;
   int reappend_tables(
     spider_fields *fields,
     SPIDER_LINK_IDX_CHAIN *link_idx_chain,
     spider_string *str
-  );
+  ) override;
   int append_where(
     spider_string *str
-  );
+  ) override;
   int append_having(
     spider_string *str
-  );
+  ) override;
 #endif
   bool append_charset_name_before_string();
 };
@@ -212,8 +208,9 @@ class spider_db_mysql_util: public spider_db_mbase_util
     spider_string *str,
     Field *field,
     const uchar *new_ptr,
+    bool is_like,
     CHARSET_INFO *access_charset
-  );
+  ) override;
 };
 
 class spider_db_mariadb_util: public spider_db_mbase_util
@@ -224,14 +221,15 @@ class spider_db_mariadb_util: public spider_db_mbase_util
   int append_sql_mode_internal(
     spider_string *str,
     sql_mode_t sql_mode
-  );
+  ) override;
   int append_column_value(
     ha_spider *spider,
     spider_string *str,
     Field *field,
     const uchar *new_ptr,
+    bool is_like,
     CHARSET_INFO *access_charset
-  );
+  ) override;
 };
 
 class spider_db_mbase_row: public spider_db_row