[feature request] add support for FILTER and WITHIN GROUP clause for aggregate expressions

[nid90]

Description here: https://www.postgresql.org/docs/9.4/static/sql-expressions.html

[mping]

Any progress on this?

[ukriish]

@mping Sorry, I never go around to this. Will try to get this added soon.

[mping]

Sure, np.

[kitallis]

This is now available in the in the 0.4.112 release.

cc @nid90 @mping

[mping]

Great stuff 👍 ty @kitallis