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Fix size check in statext_dependencies_deserialize()

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The check for the minimum expected bytea size of a MVDependencies object
was using SizeOfItem() for its calculation.  This macro uses the number
of attributes in a single dependency.

This minimum size calculation should be based on MinSizeOfItems(), that
computes the minimum expected size as the header plus the
minimally-sized number of dependency items.

Oversight in d08c44f7a4.

Author: Ilia Evdokimov <ilya.evdokimov@tantorlabs.com>
Discussion: https://postgr.es/m/4b8d299d-2505-4c30-bf80-0f697410db35@tantorlabs.com
Backpatch-through: 14
This commit is contained in:
Michael Paquier 2026-05-25 14:39:04 +09:00
parent e037a41996
commit 0445c7667e
1 changed files with 1 additions and 1 deletions
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2
src/backend/statistics/dependencies.c
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@ -538,7 +538,7 @@ statext_dependencies_deserialize(bytea *data)
elog(ERROR, "invalid zero-length item array in MVDependencies");
/* what minimum bytea size do we expect for those parameters */
min_expected_size = SizeOfItem(dependencies->ndeps);
min_expected_size = MinSizeOfItems(dependencies->ndeps);
if (VARSIZE_ANY_EXHDR(data) < min_expected_size)
elog(ERROR, "invalid dependencies size %zu (expected at least %zu)",