Merge mysql-5.1 to mysql-5.5.

780babc0 · Marko Mäkelä · dfed175c · 55129f67 · 780babc0
Commit 780babc0 authored Aug 16, 2013 by Marko Mäkelä
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storage/innobase/row/row0sel.c storage/innobase/row/row0sel.c +2 -1

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--- a/storage/innobase/row/row0sel.c
+++ b/storage/innobase/row/row0sel.c
@@ -217,7 +217,8 @@ row_sel_sec_rec_is_for_clust_rec(
 		len = clust_len;
-		if (ifield->prefix_len > 0 && len != UNIV_SQL_NULL) {
+		if (ifield->prefix_len > 0 && len != UNIV_SQL_NULL
+		    && sec_len != UNIV_SQL_NULL) {
 			if (rec_offs_nth_extern(clust_offs, clust_pos)) {
 				len -= BTR_EXTERN_FIELD_REF_SIZE;