RunInCatalogScope for an owner that WARMS every object before reading its fields — the sync
loop, which warms each entity map's object (and its parents) before running the map.
Inside it, reading an object of this connection whose fields were never warmed throws
PER_CONNECTION_CATALOG_OBJECT_COLD instead of answering [], because there a quiet empty answer
would show a connector a table with no columns and a sync would write nothing on a run that
reports success. Other owners — discovery, the server's own scopes — have no warm sites yet, so
their cold reads stay as quiet as they were before the catalog stopped being resident.
Like RunInCatalogScope it does not load: the owner loads at a point inside its own error
handling (the sync loop does it at the head of the run).
RunInCatalogScopefor an owner that WARMS every object before reading its fields — the sync loop, which warms each entity map's object (and its parents) before running the map.Inside it, reading an object of this connection whose fields were never warmed throws PER_CONNECTION_CATALOG_OBJECT_COLD instead of answering
[], because there a quiet empty answer would show a connector a table with no columns and a sync would write nothing on a run that reports success. Other owners — discovery, the server's own scopes — have no warm sites yet, so their cold reads stay as quiet as they were before the catalog stopped being resident.Like
RunInCatalogScopeit does not load: the owner loads at a point inside its own error handling (the sync loop does it at the head of the run).