> > it helped, the new version of the query takes 2303 ms on both 8.1.4 > > and 8.2.4. > > And the old one?
slightly shorter, 2204 ms. as a subjective perception, the entire application is slightly slower on 8.2.4, probably there are many queries that were manually tunned for 7.x/8.1.x and now need rewriting, which is not really what I expected from an upgrade. Liviu ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match