From 797ff136a8852d8301a946a2f29b2c34caa084d0 Mon Sep 17 00:00:00 2001 From: Howard Chu Date: Wed, 5 Mar 2014 20:40:12 -0800 Subject: [PATCH] ITS#7815 more for page_split This case didn't come up in testing. Needs finer grained test. --- libraries/liblmdb/mdb.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c index 4f0081c6fc..fd0a3b5696 100644 --- a/libraries/liblmdb/mdb.c +++ b/libraries/liblmdb/mdb.c @@ -7765,7 +7765,13 @@ mdb_page_split(MDB_cursor *mc, MDB_val *newkey, MDB_val *newdata, pgno_t newpgno mc->mc_ki[i] = mn.mc_ki[i]; } mc->mc_pg[ptop] = mn.mc_pg[ptop]; - mc->mc_ki[ptop] = mn.mc_ki[ptop] - 1; + if (mn.mc_ki[ptop]) { + mc->mc_ki[ptop] = mn.mc_ki[ptop] - 1; + } else { + /* find right page's left sibling */ + mc->mc_ki[ptop] = mn.mc_ki[ptop]; + mdb_cursor_sibling(mc, 0); + } } } else { mn.mc_top--; -- 2.39.5