Upgrade to optiq-0.4.16. Add a test case for Optiq issue https://github.com/julianhyde/optiq/issues/69.
diff --git a/pom.xml b/pom.xml
index ddd02ca..d1cfaf5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -76,18 +76,23 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>[4.8,)</version>
+      <version>4.11</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>net.hydromatic</groupId>
       <artifactId>optiq-core</artifactId>
-      <version>0.4.15</version>
+      <version>0.4.16</version>
+    </dependency>
+    <dependency>
+      <groupId>net.hydromatic</groupId>
+      <artifactId>optiq-avatica</artifactId>
+      <version>0.4.16</version>
     </dependency>
     <dependency>
       <groupId>net.hydromatic</groupId>
       <artifactId>linq4j</artifactId>
-      <version>0.1.10</version>
+      <version>0.1.11</version>
     </dependency>
     <dependency>
       <groupId>net.sf.opencsv</groupId>
diff --git a/src/test/java/net/hydromatic/optiq/test/CsvTest.java b/src/test/java/net/hydromatic/optiq/test/CsvTest.java
index a786909..3341c6f 100644
--- a/src/test/java/net/hydromatic/optiq/test/CsvTest.java
+++ b/src/test/java/net/hydromatic/optiq/test/CsvTest.java
@@ -216,6 +216,12 @@
       }
     }
   }
+
+  @Test public void testJoinOnString() throws SQLException {
+    checkSql("smart",
+        "select * from emps join depts on emps.name = depts.name",
+        "");
+  }
 }
 
 // End CsvTest.java