[BUGS] BUG #14626: array_agg( anyarray ) unexpected error with multi-valuedsingle-dimension array

The following bug has been logged on the website:

Bug reference:      14626
Logged by:          David Johnston
Email address:      david.g.johnston@gmail.com
PostgreSQL version: 9.5.6
Operating system:   Ubuntu 14.04
Description:

In short...

This works:

SELECT array_agg(CASE WHEN a = ARRAY[]::text[] THEN ARRAY['N/A']::text[]
ELSE a END)
FROM ( VALUES (1, ARRAY[]::text[]), (1, ARRAY['1']::text[]) ) vals (v, a);

This doesn't, and should since the number of elements in the non-empty array
shouldn't change the dimensionality logic.

SELECT array_agg(CASE WHEN a = ARRAY[]::text[] THEN ARRAY['N/A']::text[]
ELSE a END)
FROM ( VALUES (1, ARRAY[]::text[]), (1, ARRAY['1','2']::text[]) ) vals (v,
a)

David J.



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