Package org.apache.calcite.sql.fun

Class SqlInternalOperators

java.lang.Object
org.apache.calcite.sql.fun.SqlInternalOperators
public abstract class SqlInternalOperators extends Object
Contains internal operators.

These operators are always created directly, not by looking up a function or operator by name or syntax, and therefore this class does not implement interface SqlOperatorTable.

  • Field Details

    • ANONYMOUS_ROW

      public static final SqlRowOperator ANONYMOUS_ROW
      Similar to SqlStdOperatorTable.ROW, but does not print "ROW".

      For arguments [1, TRUE], ROW would print "ROW (1, TRUE)", but this operator prints "(1, TRUE)".

    • ANONYMOUS_ROW_NO_PARENTHESES

      public static final SqlRowOperator ANONYMOUS_ROW_NO_PARENTHESES
      Similar to ANONYMOUS_ROW, but does not print "ROW" or parentheses.

      For arguments [1, TRUE], prints "1, TRUE". It is used in contexts where parentheses have been printed (because we thought we were about to print "(ROW (1, TRUE))") and we wish we had not.

    • THROW_UNLESS

      public static final SqlInternalOperator THROW_UNLESS
      "$THROW_UNLESS(condition, message)" throws an error with the given message if condition is not TRUE, otherwise returns TRUE.

    • DRUID_IN

      public static final SqlInOperator DRUID_IN
      An IN operator for Druid.

      Unlike the regular SqlStdOperatorTable.IN operator it may be used in RexCall. It does not require that its operands have consistent types.

    • DRUID_NOT_IN

      public static final SqlInOperator DRUID_NOT_IN
      A NOT IN operator for Druid, analogous to DRUID_IN.

    • DRUID_BETWEEN

      public static final SqlBetweenOperator DRUID_BETWEEN
      A BETWEEN operator for Druid, analogous to DRUID_IN.

    • SEPARATOR

      public static final SqlOperator SEPARATOR
      Separator expression inside GROUP_CONCAT, e.g. 'SEPARATOR ',''.

    • GROUP_BY_DISTINCT

      public static final SqlInternalOperator GROUP_BY_DISTINCT
      DISTINCT operator, occurs within GROUP BY clause.

    • FETCH

      public static final SqlOperator FETCH
      Fetch operator is ONLY used for its precedence during unparsing.

    • MINUS_DATE2

      public static final SqlDatetimeSubtractionOperator MINUS_DATE2
      2-argument form of the special minus-date operator to be used with BigQuery subtraction functions. It differs from the standard MINUS_DATE operator in that it has 2 arguments, and subtracts an interval from a datetime.

    • OFFSET

      public static final SqlOperator OFFSET
      Offset operator is ONLY used for its precedence during unparsing.

    • LITERAL_AGG

      public static final SqlAggFunction LITERAL_AGG
      Aggregate function that always returns a given literal.