Hi hackers,
For local invalidation messages, there is no need to call
`InvalidateCatalogSnapshot` to set the CatalogSnapshot to NULL and
rebuild it later. Instead, just update the CatalogSnapshot's `curcid`
in `SnapshotSetCommandId`, this way can make the CatalogSnapshot work
well too.
This optimization can reduce the overhead of rebuilding CatalogSnapshot
after each command.