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drop function if exists bug23333| drop table if exists t1,t2| CREATE TABLE t1 (a int NOT NULL auto_increment primary key) ENGINE=MyISAM| CREATE TABLE t2 (a int NOT NULL auto_increment, b int, PRIMARY KEY (a)) ENGINE=InnoDB| insert into t2 values (1,1)| create function bug23333() RETURNS int(11) DETERMINISTIC begin insert into t1 values (null); select count(*) from t1 into @a; return @a; end| Warnings: Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead reset master; insert into t2 values (bug23333(),1); ERROR 23000: Duplicate entry '1' for key 'PRIMARY' include/show_binlog_events.inc Log_name Pos Event_type Server_id End_log_pos Info master-bin.000001 # Gtid # # BEGIN GTID #-#-# master-bin.000001 # Annotate_rows # # insert into t1 values (null) master-bin.000001 # Table_map # # table_id: # (test.t1) master-bin.000001 # Write_rows_v1 # # table_id: # flags: STMT_END_F master-bin.000001 # Query # # COMMIT select count(*),@a from t1 /* must be 1,1 */; count(*) @a 1 1 drop table t1,t2; drop function if exists bug23333;