[postgis-devel] Aggregates

[Paul Ramsey]

I've flipped all the aggregate functions that used to build arrays the
old way to use the new code (at r3565).

ST_MakeLine( geometry )
ST_Polygonize( geometry )
ST_Collect( geometry )
ST_Union( geometry )
ST_Accum( geometry )

These are all on the new code now. For comparison, I've left behind
two legacy implementations, that will disappear before release:

ST_Accum_old( geometry )
ST_Union_old( geometry )

I also thought that

ST_MakeLine( geometry[] )
ST_Polygonize( goemetry[] )
ST_Collect( geometry[] )
ST_Union( geometry[] )

were all more "in the spirit of PostgreSQL" so I have added them.

I will agitate for the removal of

ST_Makeline_Garray( geometry[] )
et al

later, as I build my big spreadsheet-of-doom.

Paul