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https://issues.apache.org/jira/browse/HIVE-24396?focusedWorklogId=572289&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-572289
]
ASF GitHub Bot logged work on HIVE-24396:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Mar/21 20:31
Start Date: 25/Mar/21 20:31
Worklog Time Spent: 10m
Work Description: nrg4878 commented on a change in pull request #2037:
URL: https://github.com/apache/hive/pull/2037#discussion_r601819090
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/ddl/dataconnector/alter/properties/AlterDataConnectorSetPropertiesDesc.java
##########
@@ -0,0 +1,47 @@
+/*
+ * 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.hadoop.hive.ql.ddl.dataconnector.alter.properties;
+
+import java.util.Map;
+
+import
org.apache.hadoop.hive.ql.ddl.dataconnector.alter.AbstractAlterDataConnectorDesc;
+import org.apache.hadoop.hive.ql.parse.ReplicationSpec;
+import org.apache.hadoop.hive.ql.plan.Explain;
+import org.apache.hadoop.hive.ql.plan.Explain.Level;
+
+/**
+ * DDL task description for ALTER CONNECTOR ... SET PROPERTIES ... commands.
+ */
+@Explain(displayName = "Set Connector Properties", explainLevels = {
Level.USER, Level.DEFAULT, Level.EXTENDED })
Review comment:
so the display name is used when you run "explain" on a DDL query. In
this case for alter database, the value of displayName is show below.
explain "alter database default set location '/tmp';
+---------------------------------------------+
| Explain |
+---------------------------------------------+
| Stage-0 |
| Set Database Location{"name:":"default"} |
| |
+---------------------------------------------+
DisplayName for Level.EXTENDED
explain extended alter database default set location '/tmp';
+----------------------------+
| Explain |
+----------------------------+
| STAGE DEPENDENCIES: |
| Stage-0 is a root stage |
| |
| STAGE PLANS: |
| Stage: Stage-0 |
| Set Database Location |
| name: default |
| location: /tmp |
| |
+----------------------------+
I think we keep it the way for 2 reasons
1) to keep it brief
2) for it to remain consistent with other DDL statements.
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Issue Time Tracking
-------------------
Worklog Id: (was: 572289)
Time Spent: 5h 40m (was: 5.5h)
> [New Feature] Add data connector support for remote datasources
> ---------------------------------------------------------------
>
> Key: HIVE-24396
> URL: https://issues.apache.org/jira/browse/HIVE-24396
> Project: Hive
> Issue Type: Improvement
> Components: Hive
> Reporter: Naveen Gangam
> Assignee: Naveen Gangam
> Priority: Major
> Labels: pull-request-available
> Time Spent: 5h 40m
> Remaining Estimate: 0h
>
> This feature work is to be able to support in Hive Metastore to be able to
> configure data connectors for remote datasources and map databases. We
> currently have support for remote tables via StorageHandlers like
> JDBCStorageHandler and HBaseStorageHandler.
> Data connectors are a natural extension to this where we can map an entire
> database or catalogs instead of individual tables. The tables within are
> automagically mapped at runtime. The metadata for these tables are not
> persisted in Hive. They are always mapped and built at runtime.
> With this feature, we introduce a concept of type for Databases in Hive.
> NATIVE vs REMOTE. All current databases are NATIVE. To create a REMOTE
> database, the following syntax is to be used
> CREATE REMOTE DATABASE remote_db USING <dataconnector> WITH DCPROPERTIES
> (....);
> Will attach a design doc to this jira.
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