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Peter Eisentraut f98f6ee064 array_length() function, and for SQL compatibility also cardinality()
function as a special case.

This version still has the suspicious behavior of returning null for an
empty array (rather than zero), but this may need a wholesale revision of
empty array behavior, currently under discussion.

Jim Nasby, Robert Haas, Peter Eisentraut
2008-11-12 13:09:28 +00:00
..
2008-10-07 21:26:41 +00:00