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Remove direct uses of ItemPointer.{ip_blkid,ip_posid}

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There are no functional changes here; this simply encapsulates knowledge
of the ItemPointerData struct so that a future patch can change things
without more breakage.

All direct users of ip_blkid and ip_posid are changed to use existing
macros ItemPointerGetBlockNumber and ItemPointerGetOffsetNumber
respectively.  For callers where that's inappropriate (because they
Assert that the itempointer is is valid-looking), add
ItemPointerGetBlockNumberNoCheck and ItemPointerGetOffsetNumberNoCheck,
which lack the assertion but are otherwise identical.

Author: Pavan Deolasee
Discussion: https://postgr.es/m/CABOikdNnFon4cJiL=h1mZH3bgUeU+sWHuU4Yr8AB=j3A2p1GiA@mail.gmail.com
This commit is contained in:
Alvaro Herrera
2017-03-28 12:52:55 -03:00
parent a99f77021f
commit ce96ce60ca
12 changed files with 79 additions and 58 deletions
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2
src/include/access/htup_details.h
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@@ -422,7 +422,7 @@ do { \
#define HeapTupleHeaderIsSpeculative(tup) \
( \
(tup)->t_ctid.ip_posid == SpecTokenOffsetNumber \
(ItemPointerGetOffsetNumberNoCheck(&(tup)->t_ctid) == SpecTokenOffsetNumber) \
)
#define HeapTupleHeaderGetSpeculativeToken(tup) \