PostGIS "Overlay" Style Union, not "Dissolve" Style
95652
Separate polygons based on intersection using PostGIS
33356
Forcing Subdivide to create non-zig-zag edges
156301
fit two sf polygons seamlessly
61336
Is there a way to overlay two similar UV islands with identical vertex count?
85080
Improving upon ArcGIS Buffer/Dissolve performance?
104883
\overset and align environment: how to get correct alignment?
138327
QGIS Plugin for PostGIS versioning
11301
Union of two vector subspaces not a subspace?
46190
Identifying which singlepart non-overlapping polygons are islands using ArcGIS for Desktop?
17755
Deleting small gaps (slivers) between polygons?
21711
Symbolizing multiple polygons as one by dropping internal boundaries?
71782
Making spatial view in PostGIS and adding it as layer in QGIS?
144034
Understanding Join Attributes by Location in QGIS?
4620
Error validating geometry collection / multipolygon in PostGIS
49751
How can I enable in 2.8 an overlay of an object's local coordinate system?
36345
Selecting attributes or rows of polygons that intersect two attributes of overlaying polygon using ArcGIS Pro
97439
Merge adjacent polygons & concatenate attribute values (QGIS)