Fix typo in comment.

classifyClauses was renamed to classifyConditions somewhere along the
line, but this comment didn't get the memo.

Ian Barwick
Fix header comment for bitncmp().

The result is an int less than, equal to, or greater than zero, in the
style of memcmp (and, in fact, exactly the output of memcmp in some cases).
This comment previously said -1, 1, or 0, which was an overspecification,
as noted by Emre Hasegeli.  All of the existing callers appear to be fine
with the actual behavior, so just fix the comment.

In passing, improve infelicitous formatting of some call sites.
Fix translatability markings in psql, and add defenses against future bugs.

Several previous commits have added columns to various \d queries without
updating their translate_columns[] arrays, leading to potentially incorrect
translations in NLS-enabled builds.  Offenders include commit 893686762
(added prosecdef to \df+), c9ac00e6e (added description to \dc+) and
3b17efdfd (added description to \dC+).  Fix those cases back to 9.3 or
9.2 as appropriate.

Since this is evidently more easily missed than one would like, in HEAD
also add an Assert that the supplied array is long enough.  This requires
an API change for printQuery(), so it seems inappropriate for back
branches, but presumably all future changes will be tested in HEAD anyway.

In HEAD and 9.3, also clean up a whole lot of sloppiness in the emitted
SQL for \dy (event triggers): lack of translatability due to failing to
pass words-to-be-translated through gettext_noop(), inadequate schema
qualification, and sloppy formatting resulting in unnecessarily ugly
-E output.

Peter Eisentraut and Tom Lane, per bug #8702 from Sergey Burladyan
Cache catalog lookup data across groups in ordered-set aggregates.

The initial commit of ordered-set aggregates just did all the setup work
afresh each time the aggregate function is started up.  But in a GROUP BY
query, the catalog lookups need not be repeated for each group, since the
column datatypes and sort information won't change.  When there are many
small groups, this makes for a useful, though not huge, performance
improvement.  Per suggestion from Andrew Gierth.

Profiling of these cases suggests that it might be profitable to avoid
duplicate lookups within tuplesort startup as well; but changing the
tuplesort APIs would have much broader impact, so I left that for
another day.
Remove bogus -K option from pg_dump.

I added it to the getopt call by accident in commit
691e595dd9c7786d37d73ccd327f8c2b6f0dace6.

Amit Kapila