FLOAT( expression )


    Converts the expression expression to fractional number format according to the following rules:

    Type Value
    Fractional number | Integer Original value.
    Date | Datetime Unix time corresponding to the date and time. If the value contains time zone data, it's used in the calculation. If the time zone is unknown, the time is set in UTC.
    String A number from a decimal string.
    Boolean TRUE1.0, FALSE0.0.

    Argument types:

    • expressionBoolean | Date | Datetime | Fractional number | Integer | String

    Return type: Fractional number


    FLOAT(7) = 7.0
    FLOAT("34.567") = 34.567
    FLOAT(TRUE) = 1.0

    Data source support

    ClickHouse 19.13, Microsoft SQL Server 2017 (14.0), MySQL 5.6, PostgreSQL 9.3.