Transaction can`t change metadata if it is run in RC + no_wait and there is
another connect that once had queried these metadata
---------------------------------------------------------------------------------------------------------------------------------
Key: CORE-3766
URL: http://tracker.firebirdsql.org/browse/CORE-3766
Project: Firebird Core
Issue Type: Bug
Affects Versions: 2.5.1
Reporter: Pavel Zotov
WI-V2.5.2.26390 Firebird 2.5
DDL:
C:\1INSTALL\FIREBIRD\Data>isql
Use CONNECT or CREATE DATABASE to specify a database
SQL> create database 't2.fdb'; commit;
SQL> create table tx(id int); commit;
SQL> insert into tx values(123); commit;
SQL> quit;
---------------------------------------------------------
session #1
C:\1INSTALL\FIREBIRD\Data>isql -n
localhost/3050:C:\1INSTALL\FIREBIRD\Data\T2.FDB
Database: localhost/3050:C:\1INSTALL\FIREBIRD\Data\T2.FDB
session #2
C:\1INSTALL\FIREBIRD\Data>isql -n
localhost/3050:C:\1INSTALL\FIREBIRD\Data\T2.FDB
Database: localhost/3050:C:\1INSTALL\FIREBIRD\Data\T2.FDB
session #1
SQL> set list on;
SQL> select * from tx;
ID 123
SQL> commit;
SQL> select * from rdb$database;
RDB$DESCRIPTION <null>
RDB$RELATION_ID 129
RDB$SECURITY_CLASS <null>
RDB$CHARACTER_SET_NAME NONE
SQL> commit;
session #2
SQL> commit;
SQL> SET TRANSACTION READ COMMITTED RECORD_VERSION NO WAIT; -- note: only when
*read commited* and *NO wait*
SQL> drop table tx;
SQL> commit;
Statement failed, SQLSTATE = 40001
lock conflict on no wait transaction
-unsuccessful metadata update
-object TX is in use
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