diff options
Diffstat (limited to 'src/backend/access/nbtree/nbtinsert.c')
| -rw-r--r-- | src/backend/access/nbtree/nbtinsert.c | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c index 4b2b4746f7f..582e5b0652d 100644 --- a/src/backend/access/nbtree/nbtinsert.c +++ b/src/backend/access/nbtree/nbtinsert.c @@ -216,23 +216,12 @@ top: if (!fastpath) { - /* find the first page containing this key */ - stack = _bt_search(rel, indnkeyatts, itup_scankey, false, &buf, BT_WRITE, - NULL); - - /* trade in our read lock for a write lock */ - LockBuffer(buf, BUFFER_LOCK_UNLOCK); - LockBuffer(buf, BT_WRITE); - /* - * If the page was split between the time that we surrendered our read - * lock and acquired our write lock, then this page may no longer be - * the right place for the key we want to insert. In this case, we - * need to move right in the tree. See Lehman and Yao for an - * excruciatingly precise description. + * Find the first page containing this key. Buffer returned by + * _bt_search() is locked in exclusive mode. */ - buf = _bt_moveright(rel, buf, indnkeyatts, itup_scankey, false, - true, stack, BT_WRITE, NULL); + stack = _bt_search(rel, indnkeyatts, itup_scankey, false, &buf, BT_WRITE, + NULL); } /* |