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Developer's Report: Firebird INTL/DSQL Development
August to November 2010

November 2010

HEAD
  • Fixed CORE-3204 - Constraint violation error of CAST is not raised inside views.
  • Fixed CORE-3244 - POSITION: Wrong result with '' if third argument present
  • Fixed CORE-3228 - RIGHT() fails with multibyte text blobs > 1024 chars.
  • Fixed CORE-3227 - ASCII_VAL() fails if argument contains multi-byte character anywhere.
  • Fixed segfault after EXECUTE STATEMENT with invalid SQL.
  • Improvement CORE-3234 - Support for text BLOBs >= 32K as first argument for TRIM().
  • Cleanup: removed broken nod_total2 and nod_average2.
  • Refactored blr_via, blr_from, blr_maximum, blr_minimum, blr_count, blr_average and blr_total.
  • Cleanup: removed thisNode parameter from make and setParameterType methods.
  • Refactores nod_domain_validation, blr_derived_expr, blr_field, blr_stmt_expr, blr_index (nod_scalar), nod_dbkey and nod_record_version.
  • Frontported fix for CORE-3222 - View with 'WITH CHECK OPTION' doesn't like TRIM function in WHERE; Other related fix and cleanup.
  • Removed the dependency of jrd_nod in ExprNode.
  • Make ExprNodes and RecordSourceNodes reference others directly instead of via jrd_nod; Store ValueExprNodes instead of jrd_nod in the metadata cache; Make RecordSourceNode child of ExprNode as they share most operations; Get rid of the JRD visitors in favor of direct calls; Convert assignments statement lists created inside expressions to separate source and targets ValuesExprNodes.
  • Refactored the support for blr_handler, blr_loop, blr_exec_sql, blr_exec_into, blr_exec_stmt, blr_start_savepoint, blr_end_savepoint, blr_store, blr_store2, blr_erase, blr_modify, blr_modify2, blr_exec_proc, blr_exec_proc2, blr_exec_pid, blr_dcl_cursor, blr_cursor_stmt, blr_set_generator, blr_receive, blr_stall, blr_select, blr_block, blr_error_handler, blr_label, blr_leave, blr_continue and the source info node.
2.5 Branch
  • Fixed CORE-3211 - String truncation occurs when selecting from a view containing NOT IN inside.
  • Fixed CORE-3222 - View with 'WITH CHECK OPTION' doesn't like TRIM function in WHERE.
  • Backported fix for CORE-3227 - ASCII_VAL() fails if argument contains multi-byte character anywhere.
  • Backported fix for CORE-3228 - RIGHT() fails with multibyte text blobs < 1024 chars.
  • Backported fix for CORE-3244 - POSITION: Wrong result with '' if third argument present.
2.1 Branch
  • Backported fix for CORE-3227 - ASCII_VAL() fails if argument contains multi-byte character anywhere.
  • Backported fix for CORE-3228 - RIGHT() fails with multibyte text blobs < 1024 chars.
  • Backported fix for CORE-3244 - POSITION: Wrong result with '' if third argument present.
October 2010

HEAD
  • Fixed Sub-task CORE-3147 - Fix SUBSTRING(SIMILAR) in regard to initial and final shortest matching specified in the standard.
  • Refactored GEN_ID.
  • Refactored LOWER, UPPER and TRIM.
  • Fixed CORE-3174 - Expression index with TRIM may lead to incorrect indexed lookup.
  • Cleanup: remove blr_prot_mask and blr_lock_state support.
  • INTL cleanup.
  • Refactored SUBSTRING, *_LENGTH, EXTRACT, variables, NULL, literals and CAST.
  • Fixed CORE-3140 - Preserve comments for parameters after altering procedures.
  • Parse types cleanup.
  • Simplify the internal 'null replacement' logic.
2.5 Branch
  • Fixed CORE-3164 - Parameterized requests involving blob fields fails when connected using charset UTF8.
  • Fixed CORE-3180 - ALTER VIEW with not matched columns in declaration and selection crashes the server.
  • Fixed CORE-3157 - COMMENT ON PARAMETER - Statement leads in a consumption of 1.7 GB RAM and a runtime of more than 1 Minute.
2.1 Branch
  • Backported Improvement CORE-1453 - Allow usage of functions in LIST delimiter parameter.
  • Fix wrong backport of fix for 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.
September 2010

HEAD
  • Started a refactor of a number of expression nodes: nod_add, nod_divide, nod_multiply, nod_negate, nod_user_name, nod_subtract, nod_current_date, nod_current_time, nod_current_timestamp, nod_add2, nod_subtract2, nod_multiply2, nod_divide2, nod_current_role, nod_internal_info.
  • Refactored all types of boolean nodes.
  • Removed the scratch from the nodes.
  • Refactored nod_parameter.
  • Removed the dependency of jrd_nod in boolean nodes.
  • Refactored IIF expression.
  • Investigation of CORE-3133 - User has a record on Permission table but Firebird doesn't allow the update.
V2.5 branch
  • Fixed CORE-3101 - Cannot alter the domain after migrating from older versions.
August 2010

HEAD
  • Refactored CREATE/ALTER/CREATE OR ALTER/RECREATE VIEW.
  • Refactored nod_rse, nod_relation, nod_procedure, nod_union, nod_aggregate and nod_window.
  • Refactored DsqlCompilerScratch while removing BlockNode.
  • Refactored nod_map and nod_sort to type-safe MapNode and SortNode.
  • Refactored plan nodes to PlanNode.
  • Refactored nod_index and nod_bit_* to InversionNode.
  • Various code cleanups.
  • Better internal handling of dependencies.
  • Refactor RECREATE commands.
  • Corrections and FBTCS update.
  • Frontported fix for CORE-3090 - Incorrect LEFT JOIN result using table and derived constant subquery.
  • Fix DDL triggers.
  • DdlNodes simplification/cleanup.
  • Better organization between request and statement.
V2.5 branch
  • Fixed CORE-2893 - Regression introduced with fix for CORE-2893 causes double processing of nodes when preparing a statement. Debug build aborts.
  • Fixed CORE-3090 - Incorrect LEFT JOIN result using table and derived constant subquery.
  • Fixed CORE-3094 - Parameters doesn't work with NOT IN from a selectable procedure.
  • Fixed CORE-3109 - [Crash] isc_dql_exec_immed3_m for 'create database ...' and NULL transaction.
  • Backport fix for 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.
V2.1 branch
  • Backport fix for 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.
Adriano dos Santos Fernandes
Sao Paulo, Brazil
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