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Add common interface for TBMIterators

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Add and use TBMPrivateIterator, which replaces the current TBMIterator
for serial use cases, and repurpose TBMIterator to be a unified
interface for both the serial ("private") and parallel ("shared") TID
Bitmap iterator interfaces. This encapsulation simplifies call sites for
callers supporting both parallel and serial TID Bitmap access.
TBMIterator is not yet used in this commit.

Author: Melanie Plageman
Reviewed-by: Tomas Vondra, Heikki Linnakangas
Discussion: https://postgr.es/m/063e4eb4-32d9-439e-a0b1-75565a9835a8%40iki.fi
This commit is contained in:
Melanie Plageman
2024-12-18 18:19:28 -05:00
parent 28328ec87b
commit 7f9d4187e7
10 changed files with 140 additions and 52 deletions
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2
src/include/access/gin_private.h
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@@ -352,7 +352,7 @@ typedef struct GinScanEntryData
/* for a partial-match or full-scan query, we accumulate all TIDs here */
TIDBitmap *matchBitmap;
TBMIterator *matchIterator;
TBMPrivateIterator *matchIterator;
TBMIterateResult *matchResult;
/* used for Posting list and one page in Posting tree */