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Remove obsolete nbtree duplicate entries comment.

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Remove a comment from the Berkeley days claiming that nbtree must
disambiguate duplicate keys within _bt_moveright().  There is no special
care taken around duplicates within _bt_moveright(), at least since
commit 9e85183bfc removed inscrutable _bt_moveright() code to handle
pages full of duplicates.
This commit is contained in:
Peter Geoghegan
2018-12-18 21:40:38 -08:00
parent 60f3cc9553
commit 61a4480a68
1 changed files with 1 additions and 4 deletions
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5
src/backend/access/nbtree/nbtinsert.c
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@ -814,10 +814,7 @@ _bt_findinsertloc(Relation rel,
* INCOMPLETE_SPLIT flag on it, and release the buffer.
*
* The locking interactions in this code are critical. You should
* grok Lehman and Yao's paper before making any changes. In addition,
* you need to understand how we disambiguate duplicate keys in this
* implementation, in order to be able to find our location using
* L&Y "move right" operations.
* grok Lehman and Yao's paper before making any changes.
*----------
*/
static void