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https://issues.apache.org/jira/browse/HAWQ-703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15269890#comment-15269890
]
ASF GitHub Bot commented on HAWQ-703:
-------------------------------------
Github user sansanichfb commented on a diff in the pull request:
https://github.com/apache/incubator-hawq/pull/633#discussion_r61976525
--- Diff:
pxf/pxf-api/src/main/java/org/apache/hawq/pxf/api/utilities/EnumHawqType.java
---
@@ -0,0 +1,105 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.hawq.pxf.api.utilities;
+
+import java.io.IOException;
+import org.codehaus.jackson.JsonGenerator;
+import org.codehaus.jackson.map.JsonSerializer;
+import org.codehaus.jackson.map.annotate.JsonSerialize;
+import org.codehaus.jackson.map.SerializerProvider;
+import org.codehaus.jackson.JsonProcessingException;
+
+class EnumHawqTypeSerializer extends JsonSerializer<EnumHawqType> {
+
+ @Override
+ public void serialize(EnumHawqType value, JsonGenerator generator,
+ SerializerProvider provider) throws IOException,
+ JsonProcessingException {
+ generator.writeString(value.getTypeName());
--- End diff --
Enum instances are not storing actual modifiers, just number and type of
modifiers.
> Serialize HCatalog Complex Types to plain text (as Hive profile)
> ----------------------------------------------------------------
>
> Key: HAWQ-703
> URL: https://issues.apache.org/jira/browse/HAWQ-703
> Project: Apache HAWQ
> Issue Type: New Feature
> Components: Hcatalog, PXF
> Reporter: Oleksandr Diachenko
> Assignee: Oleksandr Diachenko
>
> As for now user is able to create external HAWQ table on top of Hive table
> with complex types(LIST, MAP, STRUCT, UNION) and those types are being
> serialized as TEXT.
> But if user uses HCatalog integration feature and queries Hive tables having
> compex type columns through HAWQ he/she gets error.
> The goal is to serialize complex types to text when using HCatalog
> integration.
> Changes required:
> - PXF:
> -- add sourceType field to getMetadata endpoint.
> - HAWQ:
> -- master:
> --- update stored procedure pxf_get_item_fields, add sourceType field to
> responce.
> -- psql:
> --- update describe logic for Hive tables to show sourceType column in \d(\d+)
--
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