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Posted to issues@ignite.apache.org by "Taras Ledkov (JIRA)" <ji...@apache.org> on 2018/09/11 14:55:00 UTC

[jira] [Created] (IGNITE-9546) Document GROUP_CONCAT aggregate function

Taras Ledkov created IGNITE-9546:
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             Summary: Document GROUP_CONCAT aggregate function
                 Key: IGNITE-9546
                 URL: https://issues.apache.org/jira/browse/IGNITE-9546
             Project: Ignite
          Issue Type: Task
          Components: sql
    Affects Versions: 2.6
            Reporter: Taras Ledkov
             Fix For: 2.7


We need to document GROUP_CONCAT aggregate function.
# Explain users that {{DISTINCT}} and {{ORDER BY}} is supported only for collocated {{GROUP BY}};
# String concatenation expressions are separated by {{||}} (not by comma as described at the [draft|https://dash.readme.io/project/apacheignite-sql/v2.6/docs/group_concat]); e.g.: {{GROUP_CONCAT(valueId || '=' || value SEPARATOR '; ')}}





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