Syntax
GROUPCONCATDISTINCT(<any>[; <number>])
Description
Concatenates all non-null values seen in a group. The first argument is the column containing values that should be concatenated. The second value is an optional constant used to set a maximum number of values to avoid overflow problems with very large groups. The maximum number of values defaults to 1000. If more than the configured maximum number n of values are seen, the top n values in ascending order are kept.
The concatenated values are returned as a list.
This is an aggregate function.
...
| Info |
|---|
This function returns a list. If you require a JSONrepresented as a string, wrap this function in TOJSON (E.g., TOJSON(<function>(...)). |
...