public static boolean shouldUseCatalogBeforeSchema(TableId tableId) {
        // if catalog is not defined but the schema is defined return this flag as false
        // otherwise return true
        return !(tableId.catalog() == null && tableId.schema() != null);
    }
Whether the source Record is a schema change event.
@param sourceRecord
@return ture if the source Record is a schema change event.
inlong-sort/sort-flink/cdc-base/src/main/java/org/apache/inlong/sort/cdc/base/util/RecordUtils.java