EXA_ALL_CONSTRAINT_COLUMNS may become unresponsive

Details

Detail name Value
Changelog Number 12834
Type Bug
Status Resolved
Affected Versions EXASOL 6.0.0
Fix Versions Exasol 7.1.4, Exasol 7.0.15
Resolution Date 2021-12-22

Background

In previous Exasol versions, it was possible to create inconsistent foreign key references on the same table. This was fixed in EXASOL-2605.

Description

As a consequence of the inconsistent states in EXASOL-2605, the table EXA_ALL_CONSTRAINT_COLUMNS may not be accessible.

Workaround

Manually drop and re-create the inconsistent constraints.

Fix

The system table remains accessible. An error is also logged into EXAOperation.