[GitHub] [flink] xuefuz commented on a change in pull request #10581: [FLINK-15263][hive][doc] add dedicated page for HiveCatalog

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xuefuz commented on a change in pull request #10581: [FLINK-15263][hive][doc] add dedicated page for HiveCatalog
URL: https://github.com/apache/flink/pull/10581#discussion_r358021339
 
 

 ##########
 File path: docs/dev/table/hive/hive_catalog.md
 ##########
 @@ -0,0 +1,245 @@
+---
+title: "HiveCatalog"
+nav-parent_id: hive_tableapi
+nav-pos: 1
+---
+<!--
+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,
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+"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.
+-->
+
+Hive Metastore has evolved into the de facto metadata hub over the years in Hadoop ecosystem. Many companies have a single
+Hive Metastore service instance in their production to manage all of their metadata, either Hive metadata or non-Hive metadata,
+ as the source of truth.
+ 
+For users who have both Hive and Flink deployments, `HiveCatalog` enables them to use Hive Metastore to manage Flink's metadata.
+
+For users who have just Flink deployment, `HiveCatalog` is the only persistent catalog provided out-of-box by Flink.
+Without a persistent catalog, users using [Flink SQL DDL]({{ site.baseurl }}/dev/table/sql.html#specifying-a-ddl) have to repeatedly
+create meta-objects like a Kafka table in each session, which wastes a lot of time. `HiveCatalog` fills this gap by empowering
+users create tables and other meta-objects only once, and reference and manage them with convenience later on across sessions.
 
 Review comment:
   users create => users to create.

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