pgsql: Reorder pg_sequence columns to avoid alignment issue

Reorder pg_sequence columns to avoid alignment issue

On AIX, doubles are aligned at 4 bytes, but int64 is aligned at 8 bytes.
Our code assumes that doubles have alignment that can also be applied to
int64, but that fails in this case. One effect is that
heap_form_tuple() writes tuples in a different layout than
Form_pg_sequence expects.

Rather than rewrite the whole alignment code, work around the issue by
reordering the columns in pg_sequence so that the first int64 column
naturally comes out at an 8-byte boundary.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/f3b421da5f4addc95812b9db05a24972b8fd9739

Modified Files
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doc/src/sgml/catalogs.sgml | 14 +++++++-------
src/backend/commands/sequence.c | 4 ++--
src/include/catalog/catversion.h | 2 +-
src/include/catalog/pg_sequence.h | 14 +++++++-------
4 files changed, 17 insertions(+), 17 deletions(-)