mysqld: protocol.cc:509: void net_end_statement(THD*): Assertion `0' failed

#8  0xb7479014 in __assert_fail () from /lib/libc.so.6

#9  0x082c5479 in net_end_statement (thd=0x93f0c18) at protocol.cc:509

#10 0x082e2464 in dispatch_command (command=COM_QUERY, thd=0x93f0c18, 

    packet=0x944a589 "SELECT    \n( SELECT MAX(c) FROM t1, t2 ) \nFROM t2 \nWHERE c = ( SELECT MAX(b) FROM t2 ) \nLIMIT ROWS_EXAMINED 3", packet_length=109) at sql_parse.cc:1620

#11 0x082e08bf in do_command (thd=0x93f0c18) at sql_parse.cc:923

#12 0x082dd845 in handle_one_connection (arg=0x93f0c18) at sql_connect.cc:1193

#13 0xb7707b25 in start_thread () from /lib/libpthread.so.0

Query (94607a8): SELECT     ( SELECT MAX(c) FROM t1, t2 )  FROM t2  WHERE c = ( SELECT MAX(b) FROM t2 )  LIMIT ROWS_EXAMINED 3

Connection ID (thread ID): 1

Status: NOT_KILLED

id      select_type     table   type    possible_keys   key     key_len ref     rows    filtered Extra

1       PRIMARY t2      ref     c       c       5       const   0       0.00    Using where; Using index

3       SUBQUERY        t2      ALL     NULL    NULL    NULL    NULL    6       100.00

2       SUBQUERY        t1      system  NULL    NULL    NULL    NULL    0       0.00    const row not found

2       SUBQUERY        t2      index   NULL    c       5       NULL    6       100.00  Using index

Warnings:

Note    1003    select (select max(`test`.`t2`.`c`) from `test`.`t1` join `test`.`t2`) AS `( SELECT MAX(c) FROM t1, t2 )` from `test`.`t2` where (`test`.`t2`.`c` = (select max(`test`.`t2`.`b`) from `test`.`t2`))

in_to_exists=on

index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=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

SET optimizer_switch = 'in_to_exists=on';

CREATE TABLE t1 ( a INT );

CREATE TABLE t2 ( b INT, c INT, KEY(c) );

INSERT INTO t2 VALUES 

  (5, 0),(3, 4),(6, 1),

  (5, 8),(4, 9),(8, 1);

SELECT

  ( SELECT MAX(c) FROM t1, t2 )

FROM t2 

WHERE c = ( SELECT MAX(b) FROM t2 )

LIMIT ROWS_EXAMINED 3;