Nik Everett 2c5cfcfae4 SQL: Proper errors on set qualifiers (elastic/x-pack-elasticsearch#3377)
`SELECT DISTINCT foo FROM bar` is not yet implemented and was returning
an "unplanned item" error which isn't useful to users so I replaced it
with `SELECT DISTINCT is not yet supported`.

`SELECT foo, COUNT(*) FROM bar GROUP BY ALL foo` is not supported.
Specifically the `ALL` part. It is fairly esoteric so see [1] for what
it does. Regardless of what it does it is not widely supported and even
Microsoft's SQL Server has deprecated it so we should never support it.
Probably.

[1]: https://technet.microsoft.com/en-us/library/ms175028(v=sql.90).aspx

Related to elastic/x-pack-elasticsearch#3176

Original commit: elastic/x-pack-elasticsearch@56e5ca3009
2017-12-20 09:25:00 -05:00
..