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Developer's Report: Firebird INTL/DSQL Development
October 2011 to June 2012

June 2012

TRUNK
  • Improvements and correction to external routines.
  • Creating C++ framework for API Methods.
  • Fixed CORE-3874 - Computed column appears in non-existant rows of left join.
  • Started looking about UUID problems.
May 2012

TRUNK
  • Finished unifying DSQL/JRD sub-nodes.
  • Fixed old refactoring problems.
  • Fixed CORE-2697 again after refactoring problems.
  • Fixed the problem reported a while ago in fb-devel by Thomas Steinmaurer ("Fb 3 and RDB$MECHANISM values for SP/SF parameters").
  • Disable blr_stmt_expr (re-enabled with CORE-3812 changes) and implement blr conversion for DECODE.
  • Fixed problems with views WITH CHECK OPTION. Also change its triggers as asked for opinions in fb-devel.
  • Improvements and correction to external routines.
V.2.5 branch
  • Backported fix for CORE-3611 - Wrong data while retrieving from CTEs (or derived tables) with same column names.
April 2012

TRUNK
  • Refactored nod_select_expr, nod_with and nod_list (union).
  • Refactored nod_rows.
  • Refactored nod_order.
  • Getting rid of dsql_nod.
  • Added sed script to set btyacc.
  • Started unifying DSQL/JRD sub-nodes.
March 2012

TRUNK
  • Simplify CastNode. There was no need for a format there.
  • Refactor DDL nodes removing references to non-value/-rse dsql_nod.
  • Refactored nod_field_name, nod_var_name, nod_array and nod_collate.
  • Make column_select a SubQueryNode instead of nod_select_expr directly.
V2.5 branch
  • Fixed CORE-3802 - Firebird runs out of memory while restoring database backup.
February 2012

TRUNK
  • Refactor COMMIT, ROLLBACK and SET TRANSACTION commands.
  • Refactor SELECT.
  • Refactor GRANT / REVOKE.
  • Checking fix for CORE-1347 for the 2.0.7 release
  • Remove legacy statements residuals.
  • Parser (request types).
V2.5 branch
  • Backported fix for CORE-1997 - Broken foreign key handling for multi-segmented index using multi-level collations.
  • Backported fix for CORE-2457 - UNICODE_CI internal gds software consistency check.
January  2012

TRUNK
  • Improvement CORE-3343 - RETURNING clause is not supported in positioned (WHERE CURRENT OF) UPDATE and DELETE statements.
  • Fixed CORE-1997 - Broken foreign key handling for multi-segmented index using multi-level collations.
  • Fixed CORE-2457 - UNICODE_CI internal gds software consistency check.
  • Fixed CORE-3737 - EXECUTE BLOCK parameters definitions are not respected and may cause wrong behavior related to character sets.
  • Fixed problem with default collation.
  • Removed READ/WRITE BLOB sql commands. / Refactored request operations to fix server crashes.
December  2011

TRUNK
  • Fixed the problem with windowed functions in recursive CTEs, reported by Frank Ingermann in fb-devel.
  • Fixed CORE-3683 - Recursive query with GROUP BY in root part: wrong results if no index exists for fields that are grouped.
  • Fixed CORE-3545 - Inconsistent domain's constraint validation in PSQL.
  • Fixed CORE-3382 - Incomplete description of POSITION() function.
  • Fixed CORE-3694 - internal Firebird consistency check in query with grouping by subquery+stored procedure+aggregate.
  • Fixed CORE-3238 - Makes GEN_UUID return a compliant RFC-4122 binary UUID and introduce CHAR_TO_UUID2 and UUID_TO_CHAR2 to convert UUIDs from/to string also complying with the RFC.
V2.5 branch
  • Backported fix for CORE-3601 - Incorrect TEXT BLOB charset transliteration on VIEW with trigger.
  • Backported fix for CORE-3238 - Makes GEN_UUID return a compliant RFC-4122 binary UUID and introduce CHAR_TO_UUID2 and UUID_TO_CHAR2 to convert UUIDs from/to string also complying with the RFC.
November  2011

TRUNK
  • Fixed CORE-3650 - Recreation of collation leads to FB "death".
  • Refactored legacy (UDF) function creation.
  • Extend ISQL' SHOW FUNCTION to take packages and parameter's datatype of non-legacy functions into account.
  • Apply CORE-3114 patch (Attempt to drop non-existing generator produces bad error) with some modifications.
  • Cleanup RECREATE commands and routine method names.
  • Feature CORE-3018 - RECREATE SEQUENCE/GENERATOR.
  • Refactor DDL commands: DROP INDEX, DROP FILTER, DROP SHADOW, CREATE/DROP ROLE and DROP USER.
  • Refactor DDL commands: ALTER EXTERNAL FUNCTION, ALTER INDEX, SET STATISTICS, CREATE SHADOW, ALTER ROLE, CREATE/ALTER DATABASE.
  • Fixed backup/restore of BOOLEAN columns.
October  2011

TRUNK
  • Finished CORE-1288 - Subprocedures in PSQL and EXECUTE BLOCK.
  • Feature CORE-3626 - Subfunctions in PSQL and EXECUTE BLOCK.
  • Improvement CORE-3639 - Allow the use of multiple WHEN MATCHED / NOT MATCHED clauses in MERGE, as per the SQL 2008 specification.
  • Feature CORE-3619 - Windows function FIRST_VALUE.
  • Feature CORE-3620 - Window function LAST_VALUE.
  • Feature CORE-3621 - Window function NTH_VALUE.
  • Fixed CORE-3611 - Wrong data while retrieving from CTEs (or derived tables) with same column names.
  • Fixed CORE-3611 - Wrong data while retrieving from CTEs (or derived tables) with same column names.
  • Fixed ACL checking.
  • Avoid waste some bytes per record and procedure streams.
  • Avoid thrown exceptions in normal operation when loading non-existent ICU versions and in successful attachments. This was a pain in the debugger.
Adriano dos Santos Fernandes
Sao Paulo, Brazil

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