pgsql: Fix alignment of GIN in-line posting lists stored in entry tuple

Fix alignment of GIN in-line posting lists stored in entry tuples.

The Sparc machines in the buildfarm are crashing because of misaligned
access to posting lists stored in entry tuples.

I accidentally removed a critical SHORTALIGN() from ginFormTuple, as part
of the packed posting lists patch. Perhaps I thought it was unnecessary,
because the index_form_tuple() call above the SHORTALIGN already aligned
the size, missing the fact that the null-category byte makes it misaligned
again (I think the SHORTALIGN is indeed unnecessary if there's no null-
category byte, but let's just play it safe...)

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/ec8f692c3cd5760435712b7ec4afa8f014ed7b2e

Modified Files
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src/backend/access/gin/ginentrypage.c | 2 ++
1 file changed, 2 insertions(+)