mirror_update_exclude_unchanged_primary_index_columns
You can use the parameter to exclude partitioning key columns from the update set clause if they are not changed.
- Applies to
- Source datastores
- Values
- Set this parameter to one of the following values:
- true
- All primary index columns are excluded from the update set clause if none of them changed. Any
primary index column that changed is included in the update set clause.
If both mirror_update_only_changed_columns and mirror_update_exclude_unchanged_primary_index_columns are true, then mirror_update_only_changed_columns takes precedence.
- false
- Primary index columns are included in the update set clause even if none of them changed.
- Default setting
- false