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| 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 15:47:08 -0500 |
| commit | c47bdb3726ba020b6e187e9279014e9a5e4df0d3 (patch) | |
| tree | 7709b88f77d3b26842c2261b0926413ce03ce9cf /src/backend/utils/adt/ruleutils.c | |
| parent | ed824cf80d46ecd5bfd06d4cc65b075328b2db85 (diff) | |
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