BITWISE_AND()

All functions > BITWISE > BITWISE_AND()

Returns the bitwise AND of two bitstrings.

Signatures

Returns: Result bitstring, or NULL if either operand is NULL

BITWISE_AND(left: BITSTRING, right: BITSTRING) → BITSTRING

Notes

• Both operands must have the same length
• Each bit position is ANDed independently: 1 AND 1 = 1, all other combinations = 0
• Returns NULL if either input is NULL

Related operators

• Bitwise AND

Examples

SELECT
    f1 := BITWISE_AND('10101'::BITSTRING, '10001'::BITSTRING)::VARCHAR -- AND preserves common 1-bits
;