ToTypeName

ToTypeName function is used to return the name of a data type.

Syntax

ToTypeName(expression)

Arguments

Arguments	Description
expression	Any expression. This may be a column name, the result of another function, or a math operation.

Return Type

String

Examples

mysql> SELECT ToTypeName(number) FROM numbers(2);
+--------------------+
| ToTypeName(number) |
+--------------------+
| UInt64             |
| UInt64             |
+--------------------+

mysql> SELECT ToTypeName(sum(number)) FROM numbers(2);
+-------------------------+
| ToTypeName(sum(number)) |
+-------------------------+
| UInt64                  |
+-------------------------+