Function WriteBsonSqlValue

pg_documentdb_core/src/io/bson_io.c:593–623

inline static void
WriteBsonSqlValue(Datum fieldValue, pgbson_element_writer *writer)
{
	/* extract the bson. */
	pgbson *nestedBson = DatumGetPgBson(fieldValue);

	/* if it's a single value bson ({ "": <value> }) */
	/* then write the *value* as a child element. */
	pgbsonelement element;
	bool isSingleElement = TryGetSinglePgbsonElementFromPgbson(nestedBson, &element);
	if (isSingleElement && element.pathLength == 0)
	{
		PgbsonElementWriterWriteValue(writer, &element.bsonValue);
	}
	else
	{
		/* if it's not a single value element, treat it as a nested object. */
		pgbson_writer childWriter;
		bson_iter_t childIter;
		PgbsonElementWriterStartDocument(writer, &childWriter);
		PgbsonInitIterator(nestedBson, &childIter);
		while (bson_iter_next(&childIter))
		{
			PgbsonWriterAppendValue(&childWriter, bson_iter_key(&childIter),
									bson_iter_key_len(&childIter), bson_iter_value(
										&childIter));
		}

		PgbsonElementWriterEndDocument(writer, &childWriter);
	}
}


/*