boolean checkIsDynamicIndexWithFormat(String index) {
            return dynamicIndexTimeExtractPattern.matcher(index).matches();
        }
Check time extract dynamic index is enabled or not by index pattern.
inlong-sort/sort-flink/sort-flink-v1.15/sort-connectors/elasticsearch-base/src/main/java/org/apache/inlong/sort/elasticsearch/table/IndexGeneratorFactory.java