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Support multiple iterators in the Red-Black Tree implementation.

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While we don't need multiple iterators at the moment, the interface is
nicer and less dangerous this way.

Aleksander Alekseev, with some changes by me.
This commit is contained in:
Heikki Linnakangas
2016-09-02 08:39:39 +03:00
parent 76f9dd4fa8
commit 9f85784cae
4 changed files with 209 additions and 175 deletions
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4
src/backend/access/gin/ginbulk.c
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@ -255,7 +255,7 @@ qsortCompareItemPointers(const void *a, const void *b)
void
ginBeginBAScan(BuildAccumulator *accum)
{
rb_begin_iterate(accum->tree, LeftRightWalk);
rb_begin_iterate(accum->tree, LeftRightWalk, &accum->tree_walk);
}
/*
@ -271,7 +271,7 @@ ginGetBAEntry(BuildAccumulator *accum,
GinEntryAccumulator *entry;
ItemPointerData *list;
entry = (GinEntryAccumulator *) rb_iterate(accum->tree);
entry = (GinEntryAccumulator *) rb_iterate(&accum->tree_walk);
if (entry == NULL)
return NULL; /* no more entries */