Name
ST_MemUnion — Same as ST_Union, only memory-friendly (uses less memory and more processor time).
Synopsis
geometry ST_MemUnion(geometry set geomfield);
Description
Some useful description here.
![[Note]](images/note.png) | |
Same as ST_Union, only memory-friendly (uses less memory and more processor time). This aggregate function works by unioning the geometries one at a time to previous result as opposed to ST_Union aggregate which first creates an array and then unions |
This function supports 3d and will not drop the z-index, but sometimes does strange things with 3d.