diff -rN -u old-odbc3/ChangeLog new-odbc3/ChangeLog
--- old-odbc3/ChangeLog	2007-07-10 16:20:10.000000000 -0500
+++ new-odbc3/ChangeLog	2007-07-10 16:20:10.000000000 -0500
@@ -32,6 +32,9 @@
     dates as the minimum allowed ODBC date (XXXX-01-01). Added another
     option (FLAG_MIN_DATE_TO_ZERO) to mirror this but for bound parameters.
     FLAG_MIN_DATE_TO_ZERO only changes 0000-01-01 to 0000-00-00. (Bug #13766)
+  * Fixed possible crash if SQLBindCol() was not called before SQLSetPos().
+    Fixed use of MYSQL structure pertaining to updating large blobs in
+    cursors. (Bug #10562)
 
 ----
 
diff -rN -u old-odbc3/driver/cursor.c new-odbc3/driver/cursor.c
--- old-odbc3/driver/cursor.c	2007-07-10 16:20:10.000000000 -0500
+++ new-odbc3/driver/cursor.c	2007-07-10 16:20:10.000000000 -0500
@@ -818,7 +818,7 @@
         field= mysql_fetch_field_direct(result,ncol);
         bind= stmt->bind+ncol;
 
-        if ( bind && !bind->field )
+        if (!stmt->bind || (bind && !bind->field))
         {
           ignore_count++;
           continue;
@@ -1129,8 +1129,7 @@
     SQLUINTEGER  insert_count= 1;           /* num rows to insert - will be real value when row is 0 (all)  */
     SQLUINTEGER  count= 0;                  /* current row                                                  */
     SQLLEN       length;
-    MYSQL        mysql= stmt->dbc->mysql;
-    NET         *net= &mysql.net;
+    NET         *net= &stmt->dbc->mysql.net;
     SQLUSMALLINT ncol;
     SQLCHAR      *to;
     ulong        query_length= 0;           /* our original query len so we can reset pos if break_insert   */
diff -rN -u old-odbc3/test/my_blob.c new-odbc3/test/my_blob.c
--- old-odbc3/test/my_blob.c	2007-07-10 16:20:10.000000000 -0500
+++ new-odbc3/test/my_blob.c	2007-07-10 16:20:10.000000000 -0500
@@ -751,6 +751,40 @@
 }
 
 
+/*
+ * Bug #10562 - Large blobs fail in a cursor
+ */
+DECLARE_TEST(t_bug10562)
+{
+  SQLLEN bsize = 12 * 1024;
+  /* Test to just insert 12k blob */
+  SQLCHAR *blob = malloc(bsize);
+  SQLCHAR *blobcheck = malloc(bsize);
+  memset(blob, 'X', bsize);
+
+  ok_sql(hstmt, "drop table if exists t_bug10562");
+  ok_sql(hstmt, "create table t_bug10562 ( id int not null primary key, mb longblob )");
+  ok_sql(hstmt, "insert into t_bug10562 (mb) values ('zzzzzzzzzz')");
+
+  ok_stmt(hstmt, SQLExecDirect(hstmt, "select id, mb from t_bug10562", SQL_NTS));
+  ok_stmt(hstmt, SQLFetch(hstmt));
+  ok_stmt(hstmt, SQLBindCol(hstmt, 2, SQL_C_BINARY, blob, bsize, &bsize));
+  ok_stmt(hstmt, SQLSetPos(hstmt, 1, SQL_UPDATE, SQL_LOCK_NO_CHANGE));
+  ok_stmt(hstmt, SQLFreeStmt(hstmt, SQL_CLOSE));
+
+  /* Get the data back out to verify */
+  ok_sql(hstmt, "select mb from t_bug10562");
+  ok_stmt(hstmt, SQLFetch(hstmt));
+  ok_stmt(hstmt, SQLGetData(hstmt, 1, SQL_C_BINARY, blobcheck, bsize, NULL));
+  is(!memcmp(blob, blobcheck, bsize));
+
+  ok_sql(hstmt, "drop table if exists t_bug10562");
+  free(blob);
+  free(blobcheck);
+  return OK;
+}
+
+
 BEGIN_TESTS
   ADD_TEST(t_blob)
   ADD_TEST(t_1piecewrite2)
@@ -762,6 +796,7 @@
   ADD_TEST(t_text_fetch)
   ADD_TEST(getdata_lenonly)
   ADD_TEST(t_bug9781)
+  ADD_TEST(t_bug10562)
 END_TESTS