Remove obsolete nbtree page deletion comment.
Commit efada2b8e9
, which made the nbtree page deletion algorithm more
robust, removed the concept of a half-dead internal page. Remove a
comment about half dead parent pages that was overlooked.
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@ -1930,9 +1930,6 @@ _bt_unlink_halfdead_page(Relation rel, Buffer leafbuf, bool *rightsib_empty)
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* might be possible to push the fast root even further down, but the odds
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* of doing so are slim, and the locking considerations daunting.)
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*
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* We don't support handling this in the case where the parent is becoming
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* half-dead, even though it theoretically could occur.
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*
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* We can safely acquire a lock on the metapage here --- see comments for
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* _bt_newroot().
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*/
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@ -2388,7 +2388,7 @@ _bt_check_natts(Relation rel, bool heapkeyspace, Page page, OffsetNumber offnum)
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int tupnatts;
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/*
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* We cannot reliably test a deleted or half-deleted page, since they have
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* We cannot reliably test a deleted or half-dead page, since they have
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* dummy high keys
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*/
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if (P_IGNORE(opaque))
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