Problematic tests list (45 rows):

bugs.core_4302_addi_test | Lookup (or scan) in descending index could be very inefficient for some keys
bugs.core_4302_test | Lookup (or scan) in descending index could be very inefficient for some keys
bugs.core_4819_test | EXECUTE PROCEDURE's RETURNING_VALUES and EXECUTE STATEMENT's INTO does not check validity of assignments targets leading to bugcheck
bugs.core_4937_test | View/subselect with "union" does not use computed index
bugs.core_5074_test | Lost the charset ID in selection of array element
bugs.core_5271_test | Regression: Can not create large index
bugs.core_5275_test | Expression index may become inconsistent if CREATE INDEX was interrupted after b-tree creation but before commiting
bugs.core_5410_test | Dependencies are not stored when using some type of contructions in subroutines
bugs.core_5435_test | Badly selective index could be used for extra filtering even if selective index is used for sorting
bugs.core_5481_test | Available indices are not used in some cases if ORDER BY expression is a filtered one
bugs.core_5488_session_idle_test | Timeouts for running SQL statements and idle connections
bugs.core_5489_test | Bad performance for NULLs filtering inside a navigational index scan
bugs.core_5606_test | Add expression index name to exception message if computation failed
bugs.core_5618_test | Part of the pages of the second level blobs is not released when deleting relations
bugs.core_5921_test | Provide information about Global Commit Number, Commit Number of currently used database snapshot (if any) and Commit Numbers assigned to the committed transactions
bugs.core_6095_test | Extend trace record for COMMIT/ROLLBACK RETAINING to allow chaining of transaction ids
bugs.core_6300_test | Next attachment id, next statement id and some other additions [CORE-6300]
bugs.core_6336_test | Regression in FB 4.x: error "Implementation of text subtype <NNNN> not located" on attempt to use some collations defined in fbintl.conf [CORE6336]
bugs.core_6444_test | Ability to query Firebird configuration using SQL
bugs.gh_6802_test | When the statement timeout is set, it causes the lock manager to delay reporting deadlocks until timeout is expired
bugs.gh_6869_test | Domain CHECK-expression can be ignored when we DROP objects that are involved in it
bugs.gh_7050_test | Add table MON$COMPILED_STATEMENTS and columns
bugs.gh_7062_test | Creation of expression index does not release its statement correctly
bugs.gh_7220_test | Dependencies of subroutines are not preserved after backup restore
bugs.gh_7269_test | Database restore must make every effort on activating deferred indexes
bugs.gh_7304_test | Events in system attachments (like garbage collector) are not traced
bugs.gh_7398_test | Worst plan sort created to execute an indexed tables
bugs.gh_7426_test | Ensure the DDL trigger requests are cached
bugs.gh_7466_plans_tracking_test | Add COMPILE trace events - ability to see execution plan of every PSQL statement.
bugs.gh_7466_test | Add COMPILE trace events for procedures/functions/triggers
bugs.gh_7804_test | The partial index is not involved when filtering conditions through OR.
bugs.gh_7904_test | More realistic cardinality adjustments for unmatchable booleans // FB5 bad plan for query
bugs.gh_8077_test | Error "Too many recursion levels" does not stop execuition of code that uses ON DISCONNECT trigger (FB 4.x+)
bugs.gh_8161_test | Cardinality estimation should use primary record versions only
bugs.gh_8219_test | Database creation in 3.0.12, 4.0.5 and 5.0.1 slower than in previous releases
bugs.gh_8278_test | Avoid index lookup for a NULL key if the condition is known to always be FALSE in this case
bugs.gh_8488_test | MIN/MAX aggregates may badly affect the join order in queries with mixed INNER/LEFT joins
bugs.gh_8661_test | Strange output from SHOW DEPENDENCIES command on 6.0
bugs.gh_8851_test | 'Internal error' when calling outer procedure after deleting unused result variable from inner procedure
bugs.gh_8946_test | PERCENTILE_CONT and PERCENTILE_DISC functions #2
functional.arno.optimizer.test_opt_inner_join_05 | INNER JOIN join order LIKE and STARTING WITH
functional.gtcs.test_computed_fields_13 | Computed fields
functional.table.alter.test_05 | ALTER TABLE - ALTER - TO
functional.trigger.alter.test_alter_dml_basic | ALTER TRIGGER - basic checks for DML triggers
functional.trigger.database.test_transactioncommit_01 | Trigger on commit transaction. See also CORE-645

This list is the same for:

6.0.0.1937 2026.05.08 a7eefb3f | SS