MONDRIAN: MySQL's JDBC driver is returning a byte[] when we call getO…

…bject for a

    string expression, and it causes a test exception. Grrr. Try to placate it
    using a cast.

[git-p4: depot-paths = "//open/mondrian-release/3.2/": change = 14108]

testsrc/main/mondrian/test/CaptionTest.java

@@ -166,7 +166,7 @@ public static class MyFoodmart implements DynamicSchemaProcessor {
             + "cstr(the_year) + '-12-31'\n"
             + "          </SQL>\n"
             + "          <SQL dialect=\"mysql\">\n"
-            + "concat(`the_year`, '-12-31')\n"
+            + "concat(cast(`the_year` as char(4)), '-12-31')\n"
             + "          </SQL>\n"
             + "          <SQL dialect=\"generic\">\n"
             + "\"the_year\" || '-12-31'\n"