pgsql: Improve array_upper example

Improve array_upper example

The previous example didn't make it clear whether array_upper returned
the last element or the index of the last element.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=f9e4961b7d599ff42accf324a3c080c5095785c9

Modified Files
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doc/src/sgml/func.sgml |    2 +-
1 files changed, 1 insertions(+), 1 deletions(-)