mariadb/flush_read_lock_kill.result at 94e140fbb640003fe18c845cfaff5a088cb7b384 - mariadb - GitFox

database/mariadb

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unknown 75fa4c00ef Making FLUSH TABLES WITH READ LOCK killable while it's waiting for running commits to finish. Normally this step is not long but it's still nice to be killable

(especially in case of bug like BUG#6732 "FLUSH TABLES WITH READ LOCK + COMMIT makes next FLUSH...LOCK hang forever").


sql/lock.cc:
  making FLUSH TABLES WITH READ LOCK killable while it's waiting for running commits to finish
sql/mysql_priv.h:
  prototype change
sql/sql_parse.cc:
  now it's possible that make_global_read_lock_block_commit fails (killed)

2004-12-02 23:02:38 +01:00

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 drop table if exists t1;
 create table t1 (kill_id int);
 insert into t1 values(connection_id());
  flush tables with read lock;
 select ((@id := kill_id) - kill_id) from t1;
 ((@id := kill_id) - kill_id)
 
 kill connection @id;
 drop table t1;