[postgis-users] Raster ST_Union memory limit

[Pierre Racine]

Hi,

What maximum size the result of a ST_Union(rast) can be if it is embedded in a ST_Tile() call? 

SELECT ST_Tile(ST_Union(rast), 100, 100) rast FROM ...

The RAM available to PostgreSQL or the maximum size of a PostgreSQL field (1GB)?

Thanks,

Pierre