Hi James, Nice catch! Yes, it's not supported yet. Looks like it was mistakenly added to the documentation in version 2.3. Just suggested deleting this page from the doc. It should be removed soon.
Regards, Evgenii 2017-11-02 4:53 GMT+03:00 james wu <james...@coupang.com>: > The new ignite 2.3 release doc said there are aggregation group_concat and > related usage > https://apacheignite-sql.readme.io/docs/group_concat, but look into the > source code, this function still not support > /** {@inheritDoc} */ > @Override public String getSQL() { > String text; > > switch (type) { > case GROUP_CONCAT: > throw new UnsupportedOperationException(); > > case COUNT_ALL: > return "COUNT(*)"; > > default: > text = type.name(); > > break; > } > > if (distinct) > return text + "(DISTINCT " + child().getSQL() + ")"; > > return text + StringUtils.enclose(child().getSQL()); > } > > > > -- > Sent from: http://apache-ignite-users.70518.x6.nabble.com/ >
