ALTER VIRTUAL SCHEMA doesn't update columns if only the column-level adapter notes changed

Details

Detail name Value
Changelog Number 20991
Type Bug
Status Resolved
Affected Versions Exasol 7.1.0, Exasol 8.0.0
Fix Versions Exasol 8.29.0, Exasol 7.1.29
Resolution Date 2024-07-12

Description

If an ALTER VIRTUAL SCHEMA statement is executed and the virtual schema adapter makes no changes to the columns of a virtual table except changing the column-level adapterNotes fields, then these adapter notes changes are not stored by the database.

Workarounds

  • DROP and CREATE the virtual schema again.
  • In the virtual schema adapter, make any additional change to the virtual column, e.g., set the column comment to a random number.

Fix

The ALTER VIRTUAL SCHEMA statement now applies all changes properly.