Function UpdatePostgresIndexCore

pg_documentdb/src/commands/coll_mod.c:1248–1296

void
UpdatePostgresIndexCore(uint64_t collectionId, int indexId, IndexMetadataUpdateOperation
						operation, bool value, bool ignoreMissingShards)
{
	/* First get the OID of the index */
	char postgresIndexName[NAMEDATALEN] = { 0 };
	pg_sprintf(postgresIndexName, DOCUMENT_DATA_TABLE_INDEX_NAME_FORMAT, indexId);
	Oid indexOid = get_relname_relid(postgresIndexName, ApiDataNamespaceOid());

	List *indexOidList = NIL;
	indexOidList = lappend_oid(indexOidList, indexOid);

	/* Add any additional shard OIDs needed for this */
	indexOidList = list_concat(indexOidList,
							   GetShardIndexOids(collectionId, indexOid,
												 ignoreMissingShards));

	switch (operation)
	{
		case INDEX_METADATA_UPDATE_OPERATION_HIDDEN:
		{
			UpdatePostgresIndexesForHide(indexOidList, value);
			break;
		}

		case INDEX_METADATA_UPDATE_OPERATION_PREPARE_UNIQUE:
		{
			UpdatePostgresIndexesForPrepareUnique(indexOidList, value);
			break;
		}

		case INDEX_METADATA_UPDATE_OPERATION_UNIQUE:
		{
			UpdatePostgresIndexesForUnique(indexOidList, value);
			break;
		}

		default:
			ereport(ERROR, (errcode(ERRCODE_DOCUMENTDB_INTERNALERROR),
							errmsg("unknown index metadata update operation: %d",
								   operation)));
	}

	ListCell *cell;
	foreach(cell, indexOidList)
	{
		CacheInvalidateRelcacheByRelid(lfirst_oid(cell));
	}
}


static void