An expression with operators is a compound expression that combines multiple expressions using builtin operators. The following sections discuss the supported operators in YugaByte.
EXISTS, NOT EXISTS
predicate for existence of a row
EXISTS and NOT EXISTS can only be used in the IF clause.
Logical (boolean) negation
Unary - and + can only be used with constant expressions such as -77.
Logical (boolean) 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.