FLOAT
Type conversion functions
Syntax
FLOAT( expression )
Description
Converts the expression expression to fractional number format according to the following rules:
| Type | Value |
|---|---|
Number |
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 |
TRUE — 1.0, FALSE — 0.0. |
Argument types:
expression—Boolean | Date | Datetime | Number | String
Return type: Number (decimal)
Examples
FLOAT(7) = 7.0
FLOAT("34.567") = 34.567
FLOAT(TRUE) = 1.0
Data source support
Materialized Dataset, ClickHouse 1.1, Microsoft SQL Server 2017 (14.0), MySQL 5.6, PostgreSQL 9.3.