An uncommitted select of the new pseudo table sec$users (CORE-2639) seems to 
block new database connections
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                 Key: CORE-4200
                 URL: http://tracker.firebirdsql.org/browse/CORE-4200
             Project: Firebird Core
          Issue Type: Bug
    Affects Versions: 3.0 Alpha 1
         Environment: Windows XP
            Reporter: Robert
            Priority: Minor


Testing WI-T3.0.0.30566 Firebird 3.0 Alpha 1 on Windows XP.

An uncommitted select of the new pseudo table sec$users (CORE-2639) seems to 
block new database connections.

Test situation:

session 1:

connect to test database
start transaction
select * from sec$users
(do *not* commit)

session 2:

connect to test database => results in sql error -902; engine code 335544472 
Your user name and password are not defined. Ask your database administrator to 
set up a Firebird login.


I have tested this with FlameRobin using all isolation modes for the 
transaction in session 1 (concurrency, dirty read, read committed and 
consistency) and the error occurs in all circumstances.

The error can easily be avoided using short running transaction, but if the 
error occurs it can be confusing (it says 'user name and password' not set up, 
what actually is not the case).

Kind regard,
Robert
NL

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