TOP_CONCAT

Syntax

Standard

Extended

TOP_CONCAT( expression, amount [ , separator ] )

TOP_CONCAT( expression, amount [ , separator ]
            [ FIXED ... | INCLUDE ... | EXCLUDE ... ]
            [ BEFORE FILTER BY ... ]
          )

More info:

FIXED, INCLUDE, EXCLUDE
BEFORE FILTER BY

Description

Returns a string that contains top amount grouped values of expression delimited by separator (if separator is not specified, a comma is used).

Argument types:

expression — Array of fractional numbers | Array of integers | Array of strings | Boolean | Date | Datetime | Fractional number | Geopoint | Geopolygon | Integer | String | UUID
amount — Integer
separator — String

Return type: String

Note

Only constant values are accepted for the arguments (amount, separator).

Examples

TOP_CONCAT([Profit], 3)

TOP_CONCAT([Profit], 3, '; ')

Data source support

ClickHouse 19.13.

SUM_IF

VAR