Bug#12963823 CRASH IN PURGE THREAD UNDER UNUSUAL CIRCUMSTANCES

Replace part of the patch that Kevin apparently forgot to push.
Fix the bug also in the built-in InnoDB of MySQL 5.1.

I cannot explain why the test case was not failing without the
full patch.

This was rb:762, approved by me.

storage/innobase/row/row0purge.c

@@ -379,7 +379,8 @@ row_purge_upd_exist_or_extern(
 
 	ut_ad(node);
 
-	if (node->rec_type == TRX_UNDO_UPD_DEL_REC) {
+	if (node->rec_type == TRX_UNDO_UPD_DEL_REC
+	    || (node->cmpl_info & UPD_NODE_NO_ORD_CHANGE)) {
 
 		goto skip_secondaries;
 	}
@@ -488,13 +489,13 @@ row_purge_parse_undo_rec(
 	dulint		roll_ptr;
 	ulint		info_bits;
 	ulint		type;
-	ulint		cmpl_info;
 
 	ut_ad(node && thr);
 
 	trx = thr_get_trx(thr);
 
-	ptr = trx_undo_rec_get_pars(node->undo_rec, &type, &cmpl_info,
+	ptr = trx_undo_rec_get_pars(
+		node->undo_rec, &type, &node->cmpl_info,
 		updated_extern, &undo_no, &table_id);
 	node->rec_type = type;
 
@@ -508,7 +509,8 @@ row_purge_parse_undo_rec(
 	node->table = NULL;
 
 	if (type == TRX_UNDO_UPD_EXIST_REC
-	    && cmpl_info & UPD_NODE_NO_ORD_CHANGE && !(*updated_extern)) {
+	    && node->cmpl_info & UPD_NODE_NO_ORD_CHANGE
+	    && !(*updated_extern)) {
 
 		/* Purge requires no changes to indexes: we may return */
 
@@ -563,7 +565,7 @@ row_purge_parse_undo_rec(
 
 	/* Read to the partial row the fields that occur in indexes */
 
-	if (!(cmpl_info & UPD_NODE_NO_ORD_CHANGE)) {
+	if (!(node->cmpl_info & UPD_NODE_NO_ORD_CHANGE)) {
 		ptr = trx_undo_rec_get_partial_row(ptr, clust_index,
 						   &(node->row), node->heap);
 	}

storage/innodb_plugin/ChangeLog

+2011-09-20	The InnoDB Team
+
+	* row/row0purge.c:
+	Fix Bug#12963823 CRASH IN PURGE THREAD UNDER UNUSUAL CIRCUMSTANCES
+
 2011-09-12	The InnoDB Team
 
 	* row/row0sel.c:

storage/innodb_plugin/row/row0purge.c

@@ -406,7 +406,8 @@ row_purge_upd_exist_or_extern_func(
 
 	ut_ad(node);
 
-	if (node->rec_type == TRX_UNDO_UPD_DEL_REC) {
+	if (node->rec_type == TRX_UNDO_UPD_DEL_REC
+	    || (node->cmpl_info & UPD_NODE_NO_ORD_CHANGE)) {
 
 		goto skip_secondaries;
 	}