Opened 13 years ago

Closed 13 years ago

Last modified 13 years ago

#924 closed defect (wontfix)

GEOMETRYCOLLECTION(EMPTY) breaking change

Reported by: robe Owned by: pramsey
Priority: medium Milestone: PostGIS 2.0.0
Component: postgis Version: master
Keywords: Cc:

Description

This is a related ticket to #923.

As Mike noted, we broke backwards compatibility with

GEOMETRYCOLLECTION(EMPTY).

— this used to be legal in PostGIS 1.5 and below but in 2.0 now throws and error SELECt ST_IsEmpty('GEOMETRYCOLLECTION(EMPTY)'::geometry);

— FWIW GEOMETRYCOLLECTION(EMPTY) is illegal in SQL Server as well and GEOMETRYCOLLECTION EMPTY works fine.

Is this an intentional break or an accidental one? If so as Mike states we should document that as a break. Not sure if it really affects anybody though.

Change History (2)

comment:1 by pramsey, 13 years ago

Resolution: wontfix
Status: newclosed

Sure, can document break… I doubt it affects anyone.

comment:2 by robe, 13 years ago

document warning added at r7447 (for ST_IsEmpty and ST_GeomFromText functions)

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