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Prevent sorting from requesting a SortTuple array that exceeds MaxAllocSize;

author Tom Lane <tgl@sss.pgh.pa.us>

Sat, 4 Mar 2006 19:05:06 +0000 (19:05 +0000)

committer Tom Lane <tgl@sss.pgh.pa.us>

Sat, 4 Mar 2006 19:05:06 +0000 (19:05 +0000)

commit 80cadb303ce035a291a1b7441adb59073a9529c0

tree f3709e3337c31f2fddd2e411124852cc513ca90a tree

parent b3d0442ab3d6ebcf9d97c6e01cae0ba387209f0d commit | diff

Prevent sorting from requesting a SortTuple array that exceeds MaxAllocSize;
we'll go over to disk-based sort if we reach that limit.
This fixes Stefan Kaltenbrunner's observation that sorting can suffer an
'invalid memory alloc request size' failure when sort_mem is set large
enough. It's unfortunately not so easy to fix in 8.1 ...

src/backend/utils/sort/tuplesort.c diff | blob | blame | history

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