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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