Correct obsolete unique index insertion comment.

petergeoghegan · petergeoghegan · commit e915fed29177 · 2018-07-08T10:50:13.000-07:00
Commit bc29293 failed to update a comment about unique index checking. _bt_insertonpg() is no longer responsible for finding an insertion location while preventing conflicting insertions.
diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c
@@ -247,7 +247,7 @@ _bt_doinsert(Relation rel, IndexTuple itup,
 	 * inserter can be making the check at one time.  Furthermore, once we are
 	 * past the check we hold write locks continuously until we have performed
 	 * our insertion, so no later inserter can fail to see our insertion.
-	 * (This requires some care in _bt_insertonpg.)
+	 * (This requires some care in _bt_findinsertloc.)
 	 *
 	 * If we must wait for another xact, we release the lock while waiting,
 	 * and then must start over completely.

Original file line number	Diff line number	Diff line change
`@@ -247,7 +247,7 @@ _bt_doinsert(Relation rel, IndexTuple itup,`
`247`	`247`	`* inserter can be making the check at one time. Furthermore, once we are`
`248`	`248`	`* past the check we hold write locks continuously until we have performed`
`249`	`249`	`* our insertion, so no later inserter can fail to see our insertion.`
`250`		`- * (This requires some care in _bt_insertonpg.)`
	`250`	`+ * (This requires some care in _bt_findinsertloc.)`
`251`	`251`	`*`
`252`	`252`	`* If we must wait for another xact, we release the lock while waiting,`
`253`	`253`	`* and then must start over completely.`