Re: JSON_MERGE_PRESERVE with JSON_ARRAYAGG

[Frederic Descamps]

Hi Luis,

Could you share the query you are trying to run ?

You know, they are differences between regular function and aggregation functions.
Are you doing something like this ?
mysql> select json_merge_preserve(json_arrayagg(t1.pk)) from t1;
ERROR 1582 (42000): Incorrect parameter count in the call to native function 'json_merge_preserve'

Regards,

lefred