diff --git a/mysql-test/suite/galera/r/galera_var_dirty_reads.result b/mysql-test/suite/galera/r/galera_var_dirty_reads.result index 6d703c8cf95..6a2aa1eb5e7 100644 --- a/mysql-test/suite/galera/r/galera_var_dirty_reads.result +++ b/mysql-test/suite/galera/r/galera_var_dirty_reads.result @@ -18,6 +18,19 @@ SET @@session.wsrep_dirty_reads=ON; SELECT * FROM t1; i 1 +SET @@session.wsrep_dirty_reads=OFF; +SELECT 2; +2 +2 +SELECT @@max_allowed_packet; +@@max_allowed_packet +4194304 +SELECT 2+2 from DUAL; +2+2 +4 +SELECT sysdate() from DUAL; +sysdate() +2016-10-28 23:13:06 SELECT * FROM t1; i 1 diff --git a/mysql-test/suite/galera/t/galera_var_dirty_reads.test b/mysql-test/suite/galera/t/galera_var_dirty_reads.test index dfd8d5ecf29..0c81779ca65 100644 --- a/mysql-test/suite/galera/t/galera_var_dirty_reads.test +++ b/mysql-test/suite/galera/t/galera_var_dirty_reads.test @@ -36,6 +36,13 @@ SET @@session.wsrep_dirty_reads=ON; SELECT * FROM t1; +#Select query which does not access table should be allowed MDEV-11016 +SET @@session.wsrep_dirty_reads=OFF; +SELECT 2; +SELECT @@max_allowed_packet; +SELECT 2+2 from DUAL; +SELECT sysdate() from DUAL; + --disable_query_log --eval SET @@global.wsrep_cluster_address = '$wsrep_cluster_address_saved' --enable_query_log diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc index a15f3da8e12..41c57dca2ef 100644 --- a/sql/sql_parse.cc +++ b/sql/sql_parse.cc @@ -2650,12 +2650,15 @@ mysql_execute_command(THD *thd) /* Bail out if DB snapshot has not been installed. We however, allow SET, - SHOW and SELECT queries (only if wsrep_dirty_reads is set). + SHOW and SELECT queries (only if wsrep_dirty_reads is set or when it + does not access any table). */ if (lex->sql_command != SQLCOM_SET_OPTION && !wsrep_is_show_query(lex->sql_command) && !(thd->variables.wsrep_dirty_reads && lex->sql_command == SQLCOM_SELECT) && + !(lex->sql_command == SQLCOM_SELECT && + !all_tables) && !wsrep_node_is_ready(thd)) goto error; }