Problematic tests list (41 rows):

bugs.core_1152_test | Cannot erase a table with check constraints referencing more than a single columns
bugs.core_2712_test | Do not print "invalid request BLR" for par.cpp errors with valid BLR
bugs.core_3690_dialect_3_test | Wrong warning message for ambiguous query
bugs.core_4731_test | Prohibit an ability to issue DML or DDL statements on RDB$ tables (CORE-4731)
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_5275_test | Expression index may become inconsistent if CREATE INDEX was interrupted after b-tree creation but before commiting
bugs.core_5383_test | Dependencies in Package not recognised
bugs.core_5410_test | Dependencies are not stored when using some type of contructions in subroutines
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_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.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_7220_test | Dependencies of subroutines are not preserved after backup restore
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_8278_test | Avoid index lookup for a NULL key if the condition is known to always be FALSE in this case
bugs.gh_8434_test | Fix implicitly used collations after ALTER DOMAIN
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_8950_test | ALTER TABLE <T> ALTER <INDEXED_NON_TEXTUAL_COL> TYPE VARCHAR(nnnn) causes column to be non-updatable state
functional.arno.optimizer.test_opt_inner_join_05 | INNER JOIN join order LIKE and STARTING WITH
functional.basic.isql.test_02 | ISQL - SHOW SYSTEM TABLES
functional.basic.isql.test_03 | ISQL - SHOW SYSTEM parameters
functional.gtcs.test_computed_fields_13 | Computed fields
functional.gtcs.test_misplaced_collation_in_extracted_metadata | Misplaced collation when extracting metadata with isql
functional.gtcs.test_returning_01 | Test of RETURNING clause: INSERT, UPDATE, MERGE.
functional.metacache.test_95996928 | Avoid infinite wait due to non-optimum plan & use of read committed no record version transaction for DML by ISQL
functional.metacache.test_ee28aa6f | Hang (assert in DEV) with ALTER TABLE tbl ALTER fld TYPE ... when "tbl" has conditional index and condition depends on "fld"
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:

6.0.0.2009 2026.06.11 36d66955 | CS