Function BuildUpdateSpecList

pg_documentdb/src/commands/update.c:905–933

* BuildUpdateSpecList iterates over an array of update operations and * builds a Update for each object. */

 * builds a Update for each object.
 */
static List *
BuildUpdateSpecList(bson_iter_t *updateArrayIter, bool *hasUpsert,
					const bson_value_t *variableSpec)
{
	List *updates = NIL;

	while (bson_iter_next(updateArrayIter))
	{
		StringInfo fieldNameStr = makeStringInfo();
		int arrIdx = list_length(updates);
		appendStringInfo(fieldNameStr, "update.updates.%d", arrIdx);

		EnsureTopLevelFieldType(fieldNameStr->data, updateArrayIter, BSON_TYPE_DOCUMENT);

		bson_iter_t updateOperationIter;
		bson_iter_recurse(updateArrayIter, &updateOperationIter);

		UpdateSpec *update = BuildUpdateSpec(&updateOperationIter, variableSpec);

		updates = lappend(updates, update);

		if (update->updateOneParams.isUpsert)
		{
			*hasUpsert = true;
		}
	}
	ReportUpdateFeatureUsage(list_length(updates));
	return updates;
}


/*