Log Message:
-----------
Fix 3-parameter form of bit substring() to throw error for negative length,
as required by SQL standard.

Modified Files:
--------------
    pgsql/src/backend/utils/adt:
        varbit.c (r1.62 -> r1.63)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/varbit.c?r1=1.62&r2=1.63)
    pgsql/src/include/catalog:
        catversion.h (r1.569 -> r1.570)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/catversion.h?r1=1.569&r2=1.570)
        pg_proc.h (r1.559 -> r1.560)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_proc.h?r1=1.559&r2=1.560)
    pgsql/src/include/utils:
        varbit.h (r1.29 -> r1.30)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/varbit.h?r1=1.29&r2=1.30)

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Next:	From: Simon Riggs	Date: 2010-01-07 20:21:27
	Subject: Re: pgsql: Fix (some of the) breakage introduced into query-cancel
Previous:	From: Tom Lane	Date: 2010-01-07 19:53:49
	Subject: pgsql: Make bit/varbit substring() treat any negative length as meaning