2003-08-18 00:37:53 +02:00
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**************
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2003-11-09 13:03:58 +01:00
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* v2.0 Alpha 1
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2003-08-18 00:37:53 +02:00
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**************
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2004-01-29 09:19:36 +01:00
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* C/C++ client interface version added
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FB_API_VER defined to 20 for Firebird 2.0 in ibase.h
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2003-09-10 19:29:49 +02:00
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Contributor(s):
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2004-01-29 09:19:36 +01:00
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* Implemented EXECUTE BLOCK statement
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It is now possible to use dynamic PSQL with this statement
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Contributor(s):
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Vlad Horsun <horsun at kdb.dp.ua>
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* Implemented support for default parameters for stored procedures
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Contributor(s):
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Vlad Horsun <horsun at kdb.dp.ua>
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* DSQL parser changed
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It now always detects table aliases ambiguity and abandoned support for implicit double table aliases
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Contributor(s):
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Arno Brinkman <firebird at abvisie.nl>
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* Fixed unregistered bug
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Problems with interdependent views during restore process
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Contributor(s):
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Arno Brinkman <firebird at abvisie.nl>
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* Fixed SF #750664
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Issues with read-only databases and transactions
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Contributor(s):
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* Fixed unregistered bug
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Fixed memory leak from connection pool in isc_database_info
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Contributor(s):
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* Per-segment index selectivity maintenance
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Per-segment selectivity information is now available to the optimizer opening possibilities for more clever access path decisions
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Contributor(s):
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Dmitry Yemanov <yemanov at yandex.ru>
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Arno Brinkman <firebird at abvisie.nl>
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* Fixed/re-worked invariant tracking in PSQL and request cloning logic
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This fixes numerous issues with recursive procedures, for example SF #627057
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Contributor(s):
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* Re-worked logic of updatable views
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This solves problems with views that are implicitly updatable, but still have update triggers
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Contributor(s):
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Dmitry Yemanov <yemanov at yandex.ru>
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* Added SQL200X ROWS clause
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New syntax to limit amount of records you want to get
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Contributor(s):
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Dmitry Yemanov <yemanov at yandex.ru>
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* Fixed SF #781610
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Problems with -- comments in ISQL
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Contributor(s):
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John Bellardo <bellardo at cs.ucsd.edu>
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Blas Rodriguez Somoza <blas at puertareal.com>
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* Support for explicit cursor syntax in PSQL
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It is now possible to declare and use multiple cursors in PSQL
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Contributor(s):
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Dmitry Yemanov <yemanov at yandex.ru>
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* LIKE/CONTAINING/STARTING WITH functions re-worked
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1) functions now work with BLOBs correctly
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2) use single-pass Knuth-Morris-Pratt algorithm for pattern matching
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3) fix crash when NULL is used as ESCAPE character for LIKE
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Contributor(s):
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* Fixed unregistered bug
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Fixed server crash with explicit plans used in subqueries, when outer aggregation is performed.
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Contributor(s):
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Dmitry Yemanov <yemanov at yandex.ru>
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* Nulls ordering is changed to be SQL200X-compliant (SF #225218)
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Implemented nulls placement behavior is MSSQL-like, works on ODS11 databases only since it requires new indices for operation.
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Contributor(s):
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* Enable support for databases on raw devices
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You can now use raw devices to store database. Exceptionally usable with database aliases
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Contributor(s):
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Erik Kunze <erik.kunze at philosys.de>
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* New indices code
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Very fast, nicely tolerates large amount of duplicates, limit of 256 bytes key length removed
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Contributor(s):
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Arno Brinkman <firebird at abvisie.nl>
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* Internal logging enhanced
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1) Implemented thread- and signal- safe debug logging facilities
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2) Updated routines that print out various internal structures (DSQL node tree, BLR, DYN, etc)
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Contributor(s):
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* Improved PLAN clause
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Allowed to specify more possible paths for the engine
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Contributor(s):
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Dmitry Yemanov <yemanov at yandex.ru>
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* Further optimizer improvements
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1) MERGE PLAN is may now be generated for joins using equality comparsion on expressions
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2) Better logic regarding unique indices handling
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3) Improved logic for OR expressions
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Contributor(s):
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Arno Brinkman <firebird at abvisie.nl>
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* New local protocol
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XNET is now used as default local protocol for Windows and is supported in CS builds
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Contributor(s):
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Dmitry Yemanov <yemanov at yandex.ru>
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* Services API are fully ported to Classic architecture
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All Services API are supported on Linux and Windows CS
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Contributor(s):
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* SUBSTRING enhanced
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SUBSTRING built-in function now supports arbitrary expressions in parameters
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Contributor(s):
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Dmitry Yemanov <yemanov at yandex.ru>
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* Added LEAVE <label> syntax support
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PSQL loops now may be marked with labels and terminated in Java style
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Contributor(s):
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Dmitry Yemanov <yemanov at yandex.ru>
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* Fix SF #750659
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Generators values were resisting metadata-only backup
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Contributor(s):
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Claudio Varderrama <cvalde at usa.net>
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* Fix SF #544132, #728839
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Problems with nulls handling in UDFs
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Contributor(s):
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Claudio Varderrama <cvalde at usa.net>
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* Fix SF #784121
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Problems with some expressions in outer join conditions
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Contributor(s):
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Claudio Varderrama <cvalde at usa.net>
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* Slightly reworked synchronization logic
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1) Significantly reduce thread lock contention in lock manager and in SuperServer thread pool manager
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2) Fix rare race condition that could cause SS engine to hang during request processing until next request arrival
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3) Make lock manager memory dumps more informative (OWN_hung is detected correctly)
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4) Decouple lock manager synchronization objects for different engine instances
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Contributor(s):
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* Derived tables support
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Implemented support for derived tables in DSQL (subqueries in FROM clause) as defined by SQL200X
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Contributor(s):
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Arno Brinkman <firebird at abvisie.nl>
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* Enhanced GROUP BY clause
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Implemented support for arbitrary expressions in GROUP BY clause
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Contributor(s):
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Arno Brinkman <firebird at abvisie.nl>
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2004-01-29 20:55:50 +01:00
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* UNION enhanced
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Fixed field type coersion logic in unions
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Contributor(s):
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Arno Brinkman <firebird at abvisie.nl>
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2004-01-29 09:19:36 +01:00
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* New backup technology
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Implemented fast on-line physical incremental backup facilities
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Contributor(s):
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* Generic cleanup.
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Various cleaning and tidying up of code, warnings removal, 64-bitness cleanup, numerious minor bugfixes
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Contributor(s):
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Blas Rodriguez Somoza <blas at puertareal.com>
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Dmitry Yemanov <yemanov at yandex.ru>
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Nickolay Samofatov <nickolay at broadviewsoftware.com>
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* Generic cleanup
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Large amount of ongoing code cleanup and style standartization. In particular, broken WAL and journalling code is fully cleaned out
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Contributor(s):
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Claudio Varderrama <cvalde at usa.net>
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