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Developer's Report: Firebird Core Development & Coordination
February to May 2013

May 2013
New development:
  • Reworked the fuzzy key lookup in indices (related to CORE-1188, CORE-2709, CORE-3052 and CORE-3239)

  • CORE-4102: Bad optimization of OR predicates applied to unions
  • CORE-4107: Wrong resultset (subquery + derived table + union)
  • CORE-4108: Server crashes when executing sql query "delete from mytable order by id desc rows 2"

April 2013

New development:
  • Refactored some data access methods
  • Added interface support for scrollable DSQL cursors
  • Completed support for SQL/BLR/message lengths > 64KB

  • CORE-3943: Malformed string error in case of the appeal to monitoring tables
  • CORE-4082: Wrong error message
  • CORE-4083: Full outer join in subrequest with coalesce
  • CORE-4091: Incorrect full join result with ROW_NUMBER() function in CTE
  • CORE-4093: Server crashes while converting an overscaled numeric to a string
  • Initial reference for the v3.0 Alpha 1 changes

March 2013

New development:
  • Reimplemented the assertion macros
  • Refactored the database shutdown logic
  • CORE-1604: Error at database creation by user with non-ascii name
  • CORE-3243: CURRENT_USER and MON$USER don't work properly
  • CORE-3817: Forced database shutdown does not work if non-zero delay was specified
  • CORE-4036: Bugcheck or database corruption when attempting to store long incompressible data into a table
  • CORE-4045: Server crashes during database shutdown
  • Added support for the MSVC10 compiler to the v2.5 codebase

February 2013

New development:
  • Completed the USAGE permission implementation for generators and exceptions, added the GRANT/REVOKE syntax for USAGE
  • Refactored SET GENERATOR to become a true DDL
Dmitry Yemanov
Penza, Russia
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