diff options
Diffstat (limited to 'src/backend/optimizer/path')
| -rw-r--r-- | src/backend/optimizer/path/costsize.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/src/backend/optimizer/path/costsize.c b/src/backend/optimizer/path/costsize.c index 94077e6a006..8335cf5b5c5 100644 --- a/src/backend/optimizer/path/costsize.c +++ b/src/backend/optimizer/path/costsize.c @@ -257,32 +257,6 @@ clamp_width_est(int64 tuple_width) return (int32) tuple_width; } -/* - * clamp_cardinality_to_long - * Cast a Cardinality value to a sane long value. - */ -long -clamp_cardinality_to_long(Cardinality x) -{ - /* - * Just for paranoia's sake, ensure we do something sane with negative or - * NaN values. - */ - if (isnan(x)) - return LONG_MAX; - if (x <= 0) - return 0; - - /* - * If "long" is 64 bits, then LONG_MAX cannot be represented exactly as a - * double. Casting it to double and back may well result in overflow due - * to rounding, so avoid doing that. We trust that any double value that - * compares strictly less than "(double) LONG_MAX" will cast to a - * representable "long" value. - */ - return (x < (double) LONG_MAX) ? (long) x : LONG_MAX; -} - /* * cost_seqscan |