* Add support for `order by ...` inside aggregate function calls, e.g.,
`array_agg(p.name order by p.name asc)` matching Postgres
per-aggregate ordering semantics.
* Add support for extra arguments for aggregates.
Signed-off-by: Matouš Jan Fialka <mjf@mjf.cz>
Implements `filter(where <cond>)` for aggregate functions in LIQ
queries which allows per-row conditional filtering within grouped
aggregates. Also extends test suite and documentation.
Signed-off-by: Matouš Jan Fialka <mjf@mjf.cz>
* [LIQ] Extend with `group by` and `having` support
Also update documentation with extensive examples and add some parser
tests.
Note: `make generate` JS files included.
Signed-off-by: Matouš Jan Fialka <mjf@mjf.cz>
* Merge `liq-add-support-for-aggregators` branch
Signed-off-by: Matouš Jan Fialka <mjf@mjf.cz>
* Fix link, remove `_` example
Signed-off-by: Matouš Jan Fialka <mjf@mjf.cz>
* Wrap example LIQ queries inside `query [[ .. ]]` and replace `sql` code block type to `lua`
Signed-off-by: Matouš Jan Fialka <mjf@mjf.cz>
* Example self-consistency fix
Signed-off-by: Matouš Jan Fialka <mjf@mjf.cz>
* Fixed some queries
* Add experimental tags to LIQ aggregation/grouping
---------
Signed-off-by: Matouš Jan Fialka <mjf@mjf.cz>
Co-authored-by: Zef Hemel <zef@zef.me>
Matouš Jan Fialka