diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2015-11-17 15:46:47 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2015-11-17 15:46:59 -0500 |
| commit | cc95595e05c086a53a64eea2b17d135a80548106 (patch) | |
| tree | 39c43d6a3aaf28fcfd050b25b8c68f8c5741dd0b /src/backend/utils/adt/ruleutils.c | |
| parent | 8bc496c3b68f6b5296eed3ebccc6f322d4d0ba52 (diff) | |
| download | postgresql-cc95595e05c086a53a64eea2b17d135a80548106.tar.gz postgresql-cc95595e05c086a53a64eea2b17d135a80548106.zip | |
Fix possible internal overflow in numeric division.
div_var_fast() postpones propagating carries in the same way as mul_var(),
so it has the same corner-case overflow risk we fixed in 246693e5ae8a36f0,
namely that the size of the carries has to be accounted for when setting
the threshold for executing a carry propagation step. We've not devised
a test case illustrating the brokenness, but the required fix seems clear
enough. Like the previous fix, back-patch to all active branches.
Dean Rasheed
Diffstat (limited to 'src/backend/utils/adt/ruleutils.c')
0 files changed, 0 insertions, 0 deletions