[HACKERS] Clarification on item on Todo List

2011-10-31 Thread Tristan Wright
I am interested in this item on the list and its exact meaning: 
(Under Data Types)
- Fix data types where equality comparison is not intuitive, e.g. box

Can you elaborate on this item, I particularly fail to see what is 
non-intuitive about box comparisons (and I suppose other types where equalities 
are non-intuitive).
-Tristan

Re: [HACKERS] Clarification on item on Todo List

2011-10-31 Thread Tom Lane
Tristan Wright twrigh...@earlham.edu writes:
 I am interested in this item on the list and its exact meaning: 
 (Under Data Types)
 - Fix data types where equality comparison is not intuitive, e.g. box

 Can you elaborate on this item, I particularly fail to see what is 
 non-intuitive about box comparisons (and I suppose other types where 
 equalities are non-intuitive).

box_eq compares the boxes' areas.  The operator that most people would
consider to be equality is box_same (~=).  The reason this is on the
TODO is that nobody's figured out a way to swap the two operator names
without breaking applications.

regards, tom lane

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