pgsql: Use platform independent type for TupleTableSlot->tts_off.

Use platform independent type for TupleTableSlot->tts_off.

Previously tts_off was, for unknown reasons, of type long. For one
that's unnecessary as tuples are restricted in length, for another
long would be a bad choice of type even if that weren't the case, as
it's not reliably wider than an int. Also HeapTupleHeader->t_len is a
uint32.

This is split off from a larger patch implementing JITed tuple
deforming. Seems like an independent improvement, as tiny as it is.

Author: Andres Freund

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/4c0ec9ee28279cc6a610cde8470fc8b606267b68

Modified Files
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src/backend/access/common/heaptuple.c | 4 ++--
src/include/executor/tuptable.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)