mysqld: /my/maria-5.5/sql/sql_base.cc:1598: bool close_thread_table(THD*, TABLE**): Assertion `table->key_read == 0' failed.

--source include/have_innodb.inc

set optimizer_switch="index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=off";

CREATE TABLE t1 (pk int auto_increment primary key, `col_int_key` int(11),
key `col_int_key` (`col_int_key`),`col_varchar_key` varchar(128), key
(col_varchar_key)) engine=innodb;

EXPLAIN SELECT 1 FROM t1 AS alias1 WHERE EXISTS ( SELECT SQ2_alias1 . col_int_key AS SQ2_field1 FROM ( t1 AS SQ2_alias1 RIGHT OUTER JOIN t1 AS SQ2_alias2 ON (SQ2_alias2 . col_int_key = SQ2_alias1 . col_int_key ) ) GROUP BY SQ2_field1 HAVING SQ2_alias1 . col_int_key >= 7 );

drop table t1;