Fix test

Author: KodaiD

core/src/integration-test/java/com/scalar/db/storage/objectstorage/ObjectStorageMultipleClusteringKeyScanIntegrationTest.java

@@ -21,6 +21,16 @@ protected boolean isParallelDdlSupported() {
     return false;
   }
 
+  @Override
+  protected Column<?> getColumnWithMinValue(String columnName, DataType dataType) {
+    if (dataType == DataType.TEXT && ObjectStorageEnv.isS3()) {
+      // Since S3 and Cloud Storage can't handle "\u0001" character correctly, we use " " as the min
+      // value
+      return TextColumn.of(columnName, " ");
+    }
+    return super.getColumnWithMinValue(columnName, dataType);
+  }
+
   @Override
   protected Column<?> getColumnWithMaxValue(String columnName, DataType dataType) {
     if (dataType == DataType.TEXT

core/src/integration-test/java/com/scalar/db/storage/objectstorage/ObjectStorageMultiplePartitionKeyIntegrationTest.java

@@ -21,6 +21,16 @@ protected boolean isParallelDdlSupported() {
     return false;
   }
 
+  @Override
+  protected Column<?> getColumnWithMinValue(String columnName, DataType dataType) {
+    if (dataType == DataType.TEXT && ObjectStorageEnv.isS3()) {
+      // Since S3 and Cloud Storage can't handle "\u0001" character correctly, we use " " as the min
+      // value
+      return TextColumn.of(columnName, " ");
+    }
+    return super.getColumnWithMinValue(columnName, dataType);
+  }
+
   @Override
   protected Column<?> getColumnWithMaxValue(String columnName, DataType dataType) {
     if (dataType == DataType.TEXT

core/src/integration-test/java/com/scalar/db/storage/objectstorage/ObjectStorageSingleClusteringKeyScanIntegrationTest.java

@@ -16,6 +16,16 @@ protected Properties getProperties(String testName) {
     return ObjectStorageEnv.getProperties(testName);
   }
 
+  @Override
+  protected Column<?> getColumnWithMinValue(String columnName, DataType dataType) {
+    if (dataType == DataType.TEXT && ObjectStorageEnv.isS3()) {
+      // Since S3 and Cloud Storage can't handle "\u0001" character correctly, we use " " as the min
+      // value
+      return TextColumn.of(columnName, " ");
+    }
+    return super.getColumnWithMinValue(columnName, dataType);
+  }
+
   @Override
   protected Column<?> getColumnWithMaxValue(String columnName, DataType dataType) {
     if (dataType == DataType.TEXT

core/src/integration-test/java/com/scalar/db/storage/objectstorage/ObjectStorageSinglePartitionKeyIntegrationTest.java

@@ -16,6 +16,16 @@ protected Properties getProperties(String testName) {
     return ObjectStorageEnv.getProperties(testName);
   }
 
+  @Override
+  protected Column<?> getColumnWithMinValue(String columnName, DataType dataType) {
+    if (dataType == DataType.TEXT && ObjectStorageEnv.isS3()) {
+      // Since S3 and Cloud Storage can't handle "\u0001" character correctly, we use " " as the min
+      // value
+      return TextColumn.of(columnName, " ");
+    }
+    return super.getColumnWithMinValue(columnName, dataType);
+  }
+
   @Override
   protected Column<?> getColumnWithMaxValue(String columnName, DataType dataType) {
     if (dataType == DataType.TEXT