Fix Cassandra case insensitive issue

Author: KodaiD

core/src/main/java/com/scalar/db/storage/cassandra/CassandraAdmin.java

@@ -139,7 +139,7 @@ private void upsertIntoNamespacesTable(String keyspace) {
     String insertQuery =
         QueryBuilder.insertInto(
                 quoteIfNecessary(metadataKeyspace), quoteIfNecessary(NAMESPACES_TABLE))
-            .value(NAMESPACES_NAME_COL, quoteIfNecessary(keyspace))
+            .value(NAMESPACES_NAME_COL, keyspace)
             .toString();
     clusterManager.getSession().execute(insertQuery);
   }
@@ -180,7 +180,7 @@ private void deleteFromNamespacesTable(String keyspace) {
     String deleteQuery =
         QueryBuilder.delete()
             .from(quoteIfNecessary(metadataKeyspace), quoteIfNecessary(NAMESPACES_TABLE))
-            .where(QueryBuilder.eq(NAMESPACES_NAME_COL, quoteIfNecessary(keyspace)))
+            .where(QueryBuilder.eq(NAMESPACES_NAME_COL, keyspace))
             .toString();
     clusterManager.getSession().execute(deleteQuery);
   }
@@ -349,7 +349,7 @@ public boolean namespaceExists(String namespace) throws ExecutionException {
       String query =
           QueryBuilder.select(NAMESPACES_NAME_COL)
               .from(quoteIfNecessary(metadataKeyspace), quoteIfNecessary(NAMESPACES_TABLE))
-              .where(QueryBuilder.eq(NAMESPACES_NAME_COL, quoteIfNecessary(namespace)))
+              .where(QueryBuilder.eq(NAMESPACES_NAME_COL, namespace))
               .toString();
       ResultSet resultSet = clusterManager.getSession().execute(query);
 
@@ -396,7 +396,7 @@ public void addNewColumnToTable(
     }
     try {
       String alterTableQuery =
-          SchemaBuilder.alterTable(namespace, table)
+          SchemaBuilder.alterTable(quoteIfNecessary(namespace), quoteIfNecessary(table))
               .addColumn(columnName)
               .type(toCassandraDataType(columnType))
               .getQueryString();

core/src/test/java/com/scalar/db/storage/cassandra/CassandraAdminTest.java

@@ -229,7 +229,7 @@ private void verifyInsertIntoKeyspacesTableQuery(String keyspace) {
         QueryBuilder.insertInto(
                 quoteIfNecessary(METADATA_KEYSPACE),
                 quoteIfNecessary(CassandraAdmin.NAMESPACES_TABLE))
-            .value(CassandraAdmin.NAMESPACES_NAME_COL, quoteIfNecessary(keyspace))
+            .value(CassandraAdmin.NAMESPACES_NAME_COL, keyspace)
             .toString();
     verify(cassandraSession).execute(query);
   }
@@ -569,7 +569,7 @@ private void verifyDeleteFromKeyspacesTableQuery(String keyspace) {
             .from(
                 quoteIfNecessary(METADATA_KEYSPACE),
                 quoteIfNecessary(CassandraAdmin.NAMESPACES_TABLE))
-            .where(QueryBuilder.eq(CassandraAdmin.NAMESPACES_NAME_COL, quoteIfNecessary(keyspace)))
+            .where(QueryBuilder.eq(CassandraAdmin.NAMESPACES_NAME_COL, keyspace))
             .toString();
     verify(cassandraSession).execute(query);
   }

integration-test/src/main/java/com/scalar/db/api/DistributedStorageAdminIntegrationTestBase.java

@@ -36,13 +36,13 @@ public abstract class DistributedStorageAdminIntegrationTestBase {
       LoggerFactory.getLogger(DistributedStorageAdminIntegrationTestBase.class);
 
   private static final String TEST_NAME = "storage_admin";
-  private static final String NAMESPACE1 = "int_test_" + TEST_NAME + "1";
-  private static final String NAMESPACE2 = "int_test_" + TEST_NAME + "2";
-  private static final String NAMESPACE3 = "int_test_" + TEST_NAME + "3";
-  private static final String TABLE1 = "test_table1";
-  private static final String TABLE2 = "test_table2";
-  private static final String TABLE3 = "test_table3";
-  private static final String TABLE4 = "test_table4";
+  private static final String NAMESPACE1 = "Int_test_" + TEST_NAME + "1";
+  private static final String NAMESPACE2 = "Int_test_" + TEST_NAME + "2";
+  private static final String NAMESPACE3 = "Int_test_" + TEST_NAME + "3";
+  private static final String TABLE1 = "Test_table1";
+  private static final String TABLE2 = "Test_table2";
+  private static final String TABLE3 = "Test_table3";
+  private static final String TABLE4 = "Test_table4";
   private static final String COL_NAME1 = "c1";
   private static final String COL_NAME2 = "c2";
   private static final String COL_NAME3 = "c3";