public static boolean checkIfTimeFilterExist(Expression predicate) {
    return new TimeFilterExistChecker().process(predicate, null);
  }
Check if the given expression contains time filter.

@param predicate given expression
@return true if the given expression contains time filter
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/analyze/PredicateUtils.java