"F"-serie (CS): len=15, 6.0.0.1850 2026.03.23 b8c59810 - 6.0.0.1900 2026.04.14 9c08e532
assert   
    Statement failed, SQLSTATE = 23000
  + unsuccessful metadata update
  + -ALTER TABLE "PUBLIC"."TEST1" failed
  - violation of PRIMARY or UNIQUE KEY constraint "TEST1_UNQ" on table "PUBLIC"."TEST1"
  + -violation of PRIMARY or UNIQUE KEY constraint "TEST1_UNQ" on table "PUBLIC"."TEST1"
    -Problematic key value is ("A" = 1)
    Statement failed, SQLSTATE = 23000
  + unsuccessful metadata update
  + -ALTER TABLE "PUBLIC"."TEST2" failed
  - violation of PRIMARY or UNIQUE KEY constraint "TEST2_PK" on table "PUBLIC"."TEST2"
  + -violation of PRIMARY or UNIQUE KEY constraint "TEST2_PK" on table "PUBLIC"."TEST2"
    -Problematic key value is ("U" = 1)
    A 1
    B 1
    A 1
  - B 2
  + B 1
    U 1
    V 1
    U 1
    V 1
    IDX_NAME <null>
    IDX_UNIQ <null>

LOG DETAILS:

2026-04-02 04:23:11.276
2026-04-02 04:23:11.276 act = <firebird.qa.plugin.Action object at [hex]>
2026-04-02 04:23:11.276
2026-04-0

[...SKIPPED...]

2 04:23:11.276 E         + -violation of PRIMARY or UNIQUE KEY constraint "TEST2_PK" on table "PUBLIC"."TEST2"
2026-04-02 04:23:11.276 E           -Problematic key value is ("U" = 1)
2026-04-02 04:23:11.276 E           A 1
2026-04-02 04:23:11.276 E           B 1
2026-04-02 04:23:11.276 E           A 1
2026-04-02 04:23:11.276 E         - B 2
2026-04-02 04:23:11.276 E         + B 1
2026-04-02 04:23:11.276 E           U 1
2026-04-02 04:23:11.276 E           V 1
2026-04-02 04:23:11.276 E           U 1
2026-04-02 04:23:11.276 E           V 1
2026-04-02 04:23:11.276 E           IDX_NAME <null>
2026-04-02 04:23:11.276 E           IDX_UNIQ <null>
2026-04-02 04:23:11.276
2026-04-02 04:23:11.276 tests\bugs\core_6252_test.py:123: AssertionError
2026-04-02 04:23:11.276 ---------------------------- Captured stdout setup ----------------------------
2026-04-02 04:23:11.276 Creating db: localhost:R:\Temp\qa\fbqa\test_11324\test.fdb [page_size=None, sql_dialect=None, charset='NONE', user=SYSDBA, password=masterkey]