InnoDB: Commit inserts to the temporary tables created by

CREATE INDEX and DROP INDEX every 10,000 rows,
similar to ALTER TABLE.

sql/ha_innodb.cc

@@ -2316,7 +2316,9 @@ ha_innobase::write_row(
         if (table->timestamp_field_type & TIMESTAMP_AUTO_SET_ON_INSERT)
                 table->timestamp_field->set_time();
 
-	if (user_thd->lex->sql_command == SQLCOM_ALTER_TABLE
+	if ((user_thd->lex->sql_command == SQLCOM_ALTER_TABLE
+	    || user_thd->lex->sql_command == SQLCOM_CREATE_INDEX
+	    || user_thd->lex->sql_command == SQLCOM_DROP_INDEX)
 	    && num_write_row >= 10000) {
 		/* ALTER TABLE is COMMITted at every 10000 copied rows.
 		The IX table lock for the original table has to be re-issued.

sql/ha_innodb.h

@@ -202,7 +202,6 @@ extern "C" {
 extern ulong srv_max_buf_pool_modified_pct;
 extern ulong srv_max_purge_lag;
 extern ulong srv_auto_extend_increment;
-extern ulong srv_max_purge_lag;
 }
 
 extern TYPELIB innobase_lock_typelib;