Bug#11401: Setting thd->lex so that engines (i.e., InnoDB) recognizes

this as a LOAD DATA ... REPLACE INTO .. statement.

mysql-test/r/rpl_innodb.result

+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+CREATE TABLE t4 (
+id INT(5) unsigned NOT NULL auto_increment,
+name varchar(15) NOT NULL default '',
+number varchar(35) NOT NULL default 'default',
+PRIMARY KEY  (id),
+UNIQUE KEY unique_rec (name,number)
+) ENGINE=InnoDB;
+LOAD DATA
+INFILE '../../std_data/loaddata_pair.dat'  
+REPLACE INTO TABLE t4 
+(name,number);
+SELECT * FROM t4;
+id	name	number
+1	XXX	12345
+2	XXY	12345
+SELECT * FROM t4;
+id	name	number
+1	XXX	12345
+2	XXY	12345
+LOAD DATA
+INFILE '../../std_data/loaddata_pair.dat'  
+REPLACE INTO TABLE t4
+(name,number);
+SELECT * FROM t4;
+id	name	number
+3	XXX	12345
+4	XXY	12345
+SELECT * FROM t4;
+id	name	number
+3	XXX	12345
+4	XXY	12345

mysql-test/std_data/loaddata_pair.dat

+XXX	12345
+XXY	12345

mysql-test/t/rpl_innodb.test

+# File for specialities regarding replication from or to InnoDB
+# tables.
+
+source include/master-slave.inc;
+source include/have_innodb.inc;
+
+#
+# Bug#11401: Load data infile 'REPLACE INTO' fails on slave.
+#
+connection master;
+CREATE TABLE t4 (
+  id INT(5) unsigned NOT NULL auto_increment,
+  name varchar(15) NOT NULL default '',
+  number varchar(35) NOT NULL default 'default',
+  PRIMARY KEY  (id),
+  UNIQUE KEY unique_rec (name,number)
+) ENGINE=InnoDB;
+
+--disable_warnings
+LOAD DATA
+     INFILE '../../std_data/loaddata_pair.dat'  
+     REPLACE INTO TABLE t4 
+     (name,number);
+--enable_warnings
+SELECT * FROM t4;
+
+sync_slave_with_master;
+SELECT * FROM t4;
+
+connection master;
+--disable_warnings
+LOAD DATA
+     INFILE '../../std_data/loaddata_pair.dat'  
+     REPLACE INTO TABLE t4
+     (name,number);
+--enable_warnings
+SELECT * FROM t4;
+
+sync_slave_with_master;
+SELECT * FROM t4;
+
+connection master;
+--disable_query_log
+DROP TABLE t4;
+--enable_query_log
+sync_slave_with_master;

sql/log_event.cc

@@ -1809,11 +1809,25 @@ int Load_log_event::exec_event(NET* net, struct st_relay_log_info* rli,
                                           "` <...>", NullS) - load_data_query);
         thd->query= load_data_query;
       }
+
+      /*
+        We need to set thd->lex->sql_command and thd->lex->duplicates
+        since InnoDB tests these variables to decide if this is a LOAD
+        DATA ... REPLACE INTO ... statement even though mysql_parse()
+        is not called.  This is not needed in 5.0 since there the LOAD
+        DATA ... statement is replicated using mysql_parse(), which
+        sets the thd->lex fields correctly.
+      */
+      thd->lex->sql_command= SQLCOM_LOAD;
       if (sql_ex.opt_flags & REPLACE_FLAG)
+      {
+        thd->lex->duplicates= DUP_REPLACE;
 	handle_dup= DUP_REPLACE;
+      }
       else if (sql_ex.opt_flags & IGNORE_FLAG)
       {
         ignore= 1;
+        thd->lex->duplicates= DUP_ERROR;
         handle_dup= DUP_ERROR;
       }
       else
@@ -1831,6 +1845,7 @@ int Load_log_event::exec_event(NET* net, struct st_relay_log_info* rli,
           If reading from net (a 3.23 master), mysql_load() will change this
           to IGNORE.
         */
+        thd->lex->duplicates= DUP_ERROR;
         handle_dup= DUP_ERROR;
       }