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BUG#9998 MySQL client hangs on "USE database"

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Use open_normal_and_derived_tables instead of open_and_lock_tables when reading metadata for a table.
 Add two test cases, one for "USE database" and one for "SHOW COLUMNS FROM table"


mysql-test/r/lock_multi.result:
  Updated test results for test case for bug9998
mysql-test/r/mysql.result:
  Updated results for test case for bug9998
mysql-test/t/lock_multi.test:
  Test that "show columsn from t1" is not locked by another thread having a write lock on t1
mysql-test/t/mysql.test:
  Add test case for BUG9998
    - lock table t1 for write from mysql-test, then execute 'mysql' and call "USE test". This will test exactly what caused the bug.
sql/sql_show.cc:
  Open tables without locking when reading metadata
This commit is contained in:
unknown
2005-06-03 15:29:05 +02:00
parent 1c7b61e3ae
commit 1d6addd9bb
5 changed files with 39 additions and 6 deletions
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7
mysql-test/r/lock_multi.result
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@ -36,3 +36,10 @@ lock table t1 write, t2 write;
drop table t2;
ERROR 42S02: Table 'test.t2' doesn't exist
drop table t1;
create table t1(a int);
lock tables t1 write;
show columns from t1;
Field Type Null Key Default Extra
a int(11) YES NULL
unlock tables;
drop table t1;