STR
Syntax
STR( expression )
Description
Converts the expression expression to string type.
Argument types:
expression—Array of fractional numbers | Array of integers | Array of strings | Boolean | Date | Datetime | Fractional number | Geopoint | Geopolygon | Integer | String | UUID
Return type: String
Note
If an array is passed (only for ClickHouse, PostgreSQL sources), the conversion is performed by a function in the source database and results may vary for different data sources. For consistent results use ARR_STR.
Examples
STR(77) = "77"
STR(1 != 1) = "False"
STR(#2019-01-01#) = "2019-01-01"
STR(ARRAY(1, 2, 3, NULL)) = {1,2,3,NULL} PostgreSQL
STR(ARRAY(1, 2, 3, NULL)) = [1,2,3,NULL] ClickHouse
STR(ARRAY('a', 'b', '', NULL)) = {a,b,,NULL} PostgreSQL
STR(ARRAY('a', 'b', '', NULL)) = ['a','b','',NULL] ClickHouse
Data source support
ClickHouse 21.8, Microsoft SQL Server 2017 (14.0), MySQL 5.7, Oracle Database 12c (12.1), PostgreSQL 9.3, YDB.