diff --git a/mysql-test/r/select.result b/mysql-test/r/select.result index b764ffd3c80..6201667312f 100644 --- a/mysql-test/r/select.result +++ b/mysql-test/r/select.result @@ -3358,3 +3358,5 @@ select * from t1 left join t2 on f1=t2.f2 where t1.f2='a'; f1 f2 f2 NULL a NULL drop table t1,t2; +select * from (select * left join t on f1=f2) tt; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'on f1=f2) tt' at line 1 diff --git a/mysql-test/t/select.test b/mysql-test/t/select.test index a53b984007f..826f1c205c1 100644 --- a/mysql-test/t/select.test +++ b/mysql-test/t/select.test @@ -2829,3 +2829,9 @@ create table t2 (f2 char not null); insert into t2 values('b'); select * from t1 left join t2 on f1=t2.f2 where t1.f2='a'; drop table t1,t2; + +# +# Bug#15538 unchecked table absense caused server crash. +# +--error 1064 +select * from (select * left join t on f1=f2) tt; diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy index ce0cb35dcf8..49f2182e12a 100644 --- a/sql/sql_yacc.yy +++ b/sql/sql_yacc.yy @@ -5248,13 +5248,13 @@ join_table: | table_ref LEFT opt_outer JOIN_SYM table_ref ON { + YYERROR_UNLESS($1 && $5); /* Change the current name resolution context to a local context. */ if (push_new_name_resolution_context(YYTHD, $1, $5)) YYABORT; } expr { - YYERROR_UNLESS($1 && $5); add_join_on($5,$8); Lex->pop_context(); $5->outer_join|=JOIN_TYPE_LEFT; @@ -5279,6 +5279,7 @@ join_table: | table_ref RIGHT opt_outer JOIN_SYM table_ref ON { + YYERROR_UNLESS($1 && $5); /* Change the current name resolution context to a local context. */ if (push_new_name_resolution_context(YYTHD, $1, $5)) YYABORT; @@ -5286,7 +5287,6 @@ join_table: expr { LEX *lex= Lex; - YYERROR_UNLESS($1 && $5); if (!($$= lex->current_select->convert_right_join())) YYABORT; add_join_on($$, $8);