public static Expression combineConjuncts(List<Expression> conjuncts) {
    if (conjuncts.size() == 1) {
      return conjuncts.get(0);
    }
    return constructRightDeepTreeWithAnd(conjuncts);
  }
Combine the given conjuncts into a single expression using "and".

@param conjuncts given conjuncts
@return the expression combined by the given conjuncts
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/analyze/PredicateUtils.java