pgsql/src/backend/utils/adt float.c numeric.c

CVSROOT:    /cvsroot
Module name:    pgsql
Changes by:    tgl@postgresql.org    01/12/10 21:02:13

Modified files:
    src/backend/utils/adt: float.c numeric.c

Log message:
    Repair roundoff-error problem for stddev/variance results near zero,
    per complaint from Kemin Zhou.
    Fix lack of precision in numeric stddev/variance.