From c829e1c49770b65cd4e4eb9134fa29a11c42dab7 Mon Sep 17 00:00:00 2001
From: marko <>
Date: Wed, 22 Oct 2008 10:00:01 +0000
Subject: [PATCH] branches/innodb+: ibuf_insert_to_index_page(): When the page
 is empty, look at the first deleted record when checking the number of
 fields. This fixes part of Issue #82.

---
 ibuf/ibuf0ibuf.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/ibuf/ibuf0ibuf.c b/ibuf/ibuf0ibuf.c
index a8816d493c2..a0cf50b1505 100644
--- a/ibuf/ibuf0ibuf.c
+++ b/ibuf/ibuf0ibuf.c
@@ -3330,6 +3330,20 @@ ibuf_insert_to_index_page(
 
 	rec = page_rec_get_next(page_get_infimum_rec(page));
 
+	if (page_rec_is_supremum(rec)) {
+		/* Empty pages can result from buffered delete operations.
+		The first record from the free list can be used to find the
+		father node. */
+		rec = page_header_get_ptr(page, PAGE_FREE);
+		if (UNIV_UNLIKELY(rec == NULL)) {
+			fputs("InnoDB: Trying to insert a record from"
+			      " the insert buffer to an index page\n"
+			      "InnoDB: but the index page is empty!\n",
+			      stderr);
+			goto dump;
+		}
+	}
+
 	if (UNIV_UNLIKELY(rec_get_n_fields(rec, index)
 			  != dtuple_get_n_fields(entry))) {
 		fputs("InnoDB: Trying to insert a record from"