pgsql-server/ oc/src/sgml/errcodes.sgml oc/src ...

CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    neilc@svr1.postgresql.org    04/05/14 18:42:30

Modified files:
    doc/src/sgml   : errcodes.sgml func.sgml xfunc.sgml
    src/backend/utils/adt: numeric.c
    src/include/catalog: catversion.h pg_proc.h
    src/include/utils: builtins.h errcodes.h
    src/test/regress/expected: numeric.out
    src/test/regress/sql: numeric.sql

Log message:
    Implement the width_bucket() function, per SQL2003. This commit only adds
    a variant of the function for the 'numeric' datatype; it would be possible
    to add additional variants for other datatypes, but I haven't done so yet.

    This commit includes regression tests and minimal documentation; if we
    want developers to actually use this function in applications, we'll
    probably need to document what it does more fully.