bug21152054: Correct relative() not seeking after changing position.

Author: silvakid

driver/mysql_ps_resultset.cpp

@@ -1340,7 +1340,7 @@ MySQL_Prepared_ResultSet::relative(const int rows)
             row_position = rows > 0? num_rows + 1 : 0; /* after last or before first */
         } else {
             row_position += rows;
-            proxy->data_seek(row_position - 1);
+            seek();
         }
     }
 

test/unit/bugs/bugs.cpp

@@ -959,6 +959,27 @@ void bugs::bug21067193()
   }
 
 
+}
+
+void bugs::bug21152054()
+{
+
+  stmt->execute("DROP TABLE IF EXISTS bug21152054");
+  stmt->execute("create table bug21152054(c1 int);" );
+  stmt->execute("insert into  bug21152054 values(1), (2), (3), (4);" );
+  pstmt.reset( con->prepareStatement("select c1 from bug21152054;") );
+  res.reset( pstmt->executeQuery() );
+  ASSERT_EQUALS(true, res->absolute(4));
+  ASSERT_EQUALS(4, res->getInt(1));
+  int line = 4;
+  ASSERT_EQUALS(true, res->relative(-1));
+  do
+  {
+    --line;
+    ASSERT_EQUALS(line, res->getInt(1));
+  }  while(res->relative(-1));
+
+
 }
 
 } /* namespace regression */

test/unit/bugs/bugs.h

@@ -66,6 +66,7 @@ class bugs : public unit_fixture
     TEST_CASE(bug21053335);
     TEST_CASE(bug21067193);
     TEST_CASE(bug21066575);
+    TEST_CASE(bug21152054);
   }
 
   /**
@@ -119,6 +120,8 @@ class bugs : public unit_fixture
 
   void bug21067193();
 
+  void bug21152054();
+
 };
 
 REGISTER_FIXTURE(bugs);