Bug #20439913 CREATE TABLE DB.TABLE LIKE TMPTABLE IS BINLOGGED INCORRECTLY - BREAKS A SLAVE

Analysis:
In row based replication, Master does not send temp table information
to Slave. If there are any DDLs that involves in regular table that needs
to be sent to Slave and a temp tables (which will not be available at Slave),
the Master rewrites the query replacing temp table with it's defintion.
Eg: create table regular_table like temptable.
In rewrite logic, server is ignoring the database of regular table
which can cause problems mentioned in this bug.

Fix: dont ignore database information (if available) while
rewriting the query

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

@@ -182,6 +182,9 @@ DROP USER test_3@localhost;
 ERROR HY000: Table 'user' was not locked with LOCK TABLES
 INSERT INTO t2 VALUES ("DROP USER test_3@localhost with table locked");
 UNLOCK TABLE;
+CREATE DATABASE db;
+CREATE TABLE db.t1 LIKE t2;
+DROP DATABASE db;
 DROP USER test_3@localhost;
 DROP FUNCTION f2;
 DROP PROCEDURE p2;

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

@@ -150,6 +150,14 @@ DROP USER test_3@localhost;
 INSERT INTO t2 VALUES ("DROP USER test_3@localhost with table locked");
 
 UNLOCK TABLE;
+
+# Bug #20439913 CREATE TABLE DB.TABLE LIKE TMPTABLE IS
+# BINLOGGED INCORRECTLY - BREAKS A SLAVE
+CREATE DATABASE db;
+CREATE TABLE db.t1 LIKE t2;
+DROP DATABASE db;
+# end of Bug #20439913 test
+
 DROP USER test_3@localhost;
 DROP FUNCTION f2;
 DROP PROCEDURE p2;

sql/sql_table.cc

@@ -4720,7 +4720,8 @@ bool mysql_create_like_table(THD* thd, TABLE_LIST* table, TABLE_LIST* src_table,
 
           int result __attribute__((unused))=
             store_create_info(thd, table, &query,
-                              create_info, FALSE /* show_database */);
+                              create_info,
+                              table->db ? TRUE : FALSE/* show_database */);
 
           DBUG_ASSERT(result == 0); // store_create_info() always return 0
           if (write_bin_log(thd, TRUE, query.ptr(), query.length()))