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Developer's Report: Firebird Core Development
December 2009 to February 2010

December 2009

HEAD
  • Fixed bug CORE-2781 : AV in fbtracemgr when command line swithes set wrongly
  • Implement improvement CORE-2767 : Add ability to the trace plugin to configure traced services events on per-service name basis
  • Fixed bug CORE-2670 : FB 2.5 freezes during data pump operations
  • Fixed bug CORE-2783 : AV using recursive query as subquery in SELECT list and ORDER'ing by them
  • Fixed bug CORE-2797 : Problem with default value of SP parameter
  • A couple of ODS changes :
    • abandon page checksums and use page number for validation
    • PIP have now pip_used field to track number of allocated pages
    • two more flag bits per data page is now reserved on pointer page
      • implement dpg_secondary flag
      • swept flag implementation
    • implemented SCN inventory pages to make diffrential backup faster not reading pages which was not changed since previous backup. Corresponding nbackup and validation code changes also done. PAG code refactored a bit.
  • ODS related optimizations
    • make table scan skip secondary data pages
    • propagate record type to the store_big_record to allow record head be stored at the primary record page.
    • a little optimisation of mark_full() - don't call it if not necessary, don't mark PP if its flags already matched to DP flags.
  • GSTAT: More detailed statistics : fragments, big records and blobs info are now available when records analisys is performed.
B2_5_Release
  • Implement improvement CORE-2767 : Add ability to the trace plugin to configure traced services events on per-service name basis Fixed bug CORE-2781 : AV in fbtracemgr when command line swithes set wrongly Fixed bug CORE-2670 : FB 2.5 freezes during data pump operations Fixed bug CORE-2783 : AV using recursive query as subquery in SELECT list and ORDER'ing by them Backport fix for bug CORE-2797 : Problem with default value of SP parameter
B2_1_Release
  • Backport fix for bug CORE-2783 : AV using recursive query as subquery in SELECT list and ORDER'ing by them
January 2010

HEAD
  • Fixed bug CORE-2184 : Bus error on SPARC
  • Fixed bug CORE-2185 : PIP page could be marked after it was really changed
  • Fixed bug when huge memory chunk (more than 2GB) is released
  • Refactoring : extract part of MET_lookup_partner() as independent function MET_scan_partners()
  • Preserve record's flags when gathering record from fragments. Its used in prepare_update() to check if primary record was backed out.
  • Avoid possible deadlock in VIO.
  • Fixed bug CORE-2817 : If stored procedure or trigger contains query with PLAN ORDER it could fail after disconnect of attachment where procedure\trigger executed first time
  • Fixed bug CORE-2820 : Small memory leak in query with PLAN ORDER
  • Fixed bug CORE-2824 : Small memory and handles leak at every connect\disconnect
  • Update documentation
  • Make trusted auth works again.
  • Thread-safe shared page cache implementation is started.
  • Index corruptions reported by users are investigated
B2_5_Release
  • Fixed bug CORE-2184 : Bus error on SPARC
  • Fixed bug CORE-2185 : PIP page could be marked after it was really changed
  • Fixed bug CORE-2817 : If stored procedure or trigger contains query with PLAN ORDER it could fail after disconnect of attachment where procedure\trigger executed first time and bug CORE-2820 : Small memory leak in query with PLAN ORDER
  • Fixed bug CORE-2824 : Small memory and handles leak at every connect\disconnect
  • Update documentation
B2_1_Release
  • Backported fix for bug CORE-2184 : Bus error on SPARC
  • Backported fix for bug CORE-2185 : PIP page could be marked after it was really changed
  • Fixed bug CORE-2820 : Small memory leak in query with PLAN ORDER
B2_0_Release
  • Fixed bug CORE-2820 : Small memory leak in query with PLAN ORDER
  • Backported fix for bug CORE-2698 : Infinite wait in LocksCache::get
  • Fix for bug CORE-2631 : Backport fix for bug CORE-2291 (BUGCHECK 284) into v2.0.6
February 2010

HEAD (V.3.0)
  • Improvement CORE-2821 : Add indication about log size limit for trace API
  • Fixed bug CORE-2837 : Asynchronous query cancellation (via Ctrl+C) not working
  • Fixed bug CORE-2851 : problem with fb_cancel_operation
  • Fixed bug CORE-2852 : Server crash when executing syntactical wrong SQL statement with an active trace session
  • Fixed bug CORE-2586 : Non-NULL key in unique index could be not found when key is removed
  • Fixed bug CORE-2864 : Listener process of Classic Server leak handles.
  • Fixed bug CORE-2879 : Sweep could raise error : page 0 is of wrong type (expected 6, found 1)
B2_5_Release
  • Improvement CORE-2821 : Add indication about log size limit for trace API
  • Fixed bug CORE-2837 : Asynchronous query cancellation (via Ctrl+C) not working
  • Fixed bug CORE-2851 : problem with fb_cancel_operation
  • Fixed bug CORE-2852 : Server crash when executing syntactical wrong SQL statement with an active trace session
  • Fixed bug CORE-2586 : Non-NULL key in unique index could be not found when key is removed
  • Fixed bug CORE-2864 : Listener process of Classic Server leak handles. The code, removed in rev. 1.296, was and is relevant :)
  • Fixed bug CORE-2867 : SuperClassic leaks semaphores on disconnect
  • Fixed bug CORE-2879 : Sweep could raise error : page 0 is of wrong type (expected 6, found 1)
B2_1_Release
  • Backport fix for bug CORE-2586 : Non-NULL key in unique index could be not found when key is removed
  • Backport fix for bug CORE-2879 : Sweep could raise error : page 0 is of wrong type (expected 6, found 1)
B2_0_Release
  • Backport fix for bug CORE-2586 : Non-NULL key in unique index could be not found when key is removed
Vladyslav Khorsun
Dnetpropetrovsk, Ukraine
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