Builtin Operator Call

An expression with operators is a compound expression that combines multiple expressions using builtin operators. The following sections discuss the supported operators in YugaByte.

Nullary Operations

Operator Description
EXISTS, NOT EXISTS predicate for existence of a row

  • EXISTS and NOT EXISTS can only be used in the IF clause.

    Unary Operations

    Operator Description
    - numeric negation
    + no-op
    NOT Logical (boolean) negation

  • Unary - and + can only be used with constant expressions such as -77.

    Binary Operations

    Operator Description
    OR, AND Logical (boolean) expression
    =, !=, <, <=, >, >= Comparison expression
    + Addition, append, or prepend
    - Substraction or removal
    * Multiplication. Not yet supported
    / Division. Not yet supported
    ISNULL, IS NOT NULL Not yet supported comparison expression.

  • The first argument of comparison operators must be a column. For example, column_name = 7.
  • Comparing NULL with others always yields a false value. Operator ISNULL or IS NULL must be used when comparing with NULL.
  • When + and - are applied to a NULL argument of COUNTER datatype, the NULL expression is replaced with a zero value before the computation. When these operators are applied to a NULL expression of all other numeric datatypes, the computed value is always NULL.
  • Operator + either prepends or appends a value to a LIST while operator - removes elements from LIST.
  • Operator + inserts new distinct elements to a MAP or SET while operator - removes elements from them.
  • See Also

    All Expressions