FunctionsType Conversion

to_unixtime

Converts values to Unix epoch seconds and returns NULL for invalid or negative timestamps.

to_unixtime(…) → UInt64

Kind · scalar

Converts values to Unix epoch seconds and returns NULL for invalid or negative timestamps.

Part of the Type Conversion family.

to_uint8_or_zero

Converts values to UInt8 and uses 0 when conversion fails.

to_uuid

Converts values to canonical UUID text by parsing UUID strings, 16-byte payloads, or non-negative numeric identifiers.