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Developer's Report: Firebird INTL/DSQL Development
March to July 2010

July 2010

HEAD
  • Refactor CREATE/ALTER/DROP DOMAIN
  • Constify RecordSource methods - these classes are shared pieces of a (shared) statement
  • Refactor CREATE/ALTER/CREATE OR ALTER/RECREATE/DROP EXCEPTION commands
  • Refactor CREATE/ALTER/DROP/RECREATE TABLE and DROP VIEW commands
  • Create system constraints for better error reporting
  • CREATE VIEW refactor
  • Improvement CORE-3085 - Add clause ALTER DOMAIN [NOT] NULL
  • Fixed CORE-3091 - Built-in function POWER(X, Y) does not work when the X argument is negative and the Y value is scaled numeric but integral.
June 2010

HEAD
  • Finished Improvement CORE-3020 - Add clause RETURNING ... INTO ... to MERGE statement
  • Fixed the CMP debug code
  • Created class BlrWriter and reorganization (move BLR generation from statement to scratch)
  • Fixed CORE-3055 - Variable/argument name could be absent or be wrong in error messages when more than 256 variables are used
  • Fixed CORE-3056 - Problems may happen when issuing DDL commands in the same transaction after CREATE COLLATION was issued
  • Fixed CORE-3047 - Wrong logic is used to resolve EXECUTE BLOCK parameters collations
  • Improvement CORE-3057 - Allow the usage of blobs in COMPUTED BY expressions. Refactor DSQL "blocks"
  • Refactor CREATE/DROP COLLATION
  • Small METD cleanup
  • MSVC10 support.
2.5 Branch
  • Backport solution to a derived table problem
  • Fixed CORE-3038 - The insert failed because a column definition includes validation
  • Backported fix for CORE-2985 - The new 2.5 feature to alter COMPUTED columns doesn't handle dependencies well
  • Backported fix for CORE-2893 - Expression in a subquery may be treated as invariant and produce incorrect results
  • Fixed CORE-2900 - "AV - The code attempted to access a virtual address without privilege to do so" using aggregate distinct
  • Fixed problem seen by Vlad where crash happens when our older ICU is found.
2.1 Branch
  • Backported fix for CORE-2900 - "AV - The code attempted to access a virtual address without privilege to do so" using aggregate distinct
2.0 Branch
  • Backported fix for CORE-2900 - "AV - The code attempted to access a virtual address without privilege to do so" using aggregate distinct
Other
  • Ongoing work to make the SVN repository usable
May 2010

HEAD
  • Fixed the UDR engine config file
  • Continued the work in subprocedures
  • Fixed CORE-2826 - Join condition fails for UTF-8 databases
  • Fixed CORE-2929 - 'Invalid ESCAPE sequence' when connecting to the database
  • Started Improvement CORE-3020 - Add clause RETURNING ... INTO ... to MERGE statement
  • Started working on fix for CORE-3056 - Problems may happen when issuing DDL commands in the same transaction after CREATE COLLATION was issued
V2.5 branch
  • Fixed crashes in Ubuntu 10.04
  • Subtask CORE-2996 - Fix error code incompatibility introduced in fix for CORE-2552
  • Backported fix for CORE-2826 - Join condition fails for UTF-8 databases
V2.1 branch
  • Backported fix for CORE-2826 - Join condition fails for UTF-8 databases
Miscellaneous
  • Started work on making the SVN repository usable
April 2010

HEAD
  • Fixed the problem of the system transaction storing pointer to random or already deallocated attachment
  • Fixed some TCS tests
  • Refactor user and system functions nodes
  • Fixed problem of ExprNodes in joins - "no current record" error
  • Cleanup - switch from pointer arithmetics to sane way to get impure places
  • Cleanup and thread safety fix in aggregate handling
  • Cleanup ­ request impure area and rpbs
  • Refactor jrd_req into JrdStatement (shared part) and jrd_req (execution of a statement). Fixed some bugs found on the way
  • Use AutoCacheRequest in all cacheable system requests. Fixes some request leakages
  • Fixed CORE-2971 - Invalid UPDATE OR INSERT usage may lead to successive "request depth exceeded. (Recursive definition?)" errors
  • Usage of AutoRequest
  • Start work in subprocedures
March 2010

HEAD
  • Fixed the bug reported by Ivan Prenosil (FB3 - problem with inactive triggers). It was the SortMap::flags not initialized
  • Fixed the DDL problem reported by Ivan Prenosil
  • Added a third optional (default is NULL) parameter to LAG and LEAD, that is the value returned when moving out of the partition
  • Fixed CORE-2910 - PK index is not used for derived tables
  • Fixed CORE-2913 - COLLATE expressions are applied incorrectly. Fixed CORE-2922 - Character set used in constants is not registered as dependency
  • Simplified the pattern matcher templates
  • Fixed CORE-2923 - Problem with dependencies between a procedure and a view using that procedure
  • Fixed the parameter handling in SUBSTRING(SIMILAR)
  • Fixed CORE-2932 ­ Wrong field position after ALTER POSITION
  • Improvement CORE-2005 - Support SQL 2008 syntax for MERGE statement with DELETE extension
V2.5 branch
  • Fixed CORE-2898 - CHAR_TO_UUID and UUID_TO_CHAR worked differently in big/little endian architectures
  • Fixed CORE-2923 - Problem with dependencies between a procedure and a view using that procedure
  • Fixed CORE-2930 - DROP VIEW drops output parameters of used stored procedures.
Adriano dos Santos Fernandes
Sao Paulo, Brazil
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