[GitHub] [incubator-pinot] Jackie-Jiang commented on a change in pull request #4010: Add docs for record reader

[GitBox <gi...@apache.org>]

Jackie-Jiang commented on a change in pull request #4010: Add docs for record reader
URL: https://github.com/apache/incubator-pinot/pull/4010#discussion_r268872701
 
 

 ##########
 File path: docs/record_reader.rst
 ##########
 @@ -0,0 +1,133 @@
+..
+.. 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.
+..
+
+Record Reader
+=============
+
+Pinot supports indexing data from various file formats. To support reading from a file format, a record reader need to
+be provided to read the file and convert records into the general format which the indexing engine can understand. The
+record reader serves as the connector from each individual file format to Pinot record format.
+
+Pinot package provides the following record readers out of the box:
+
+- Avro record reader: record reader for Avro format files
+- CSV record reader: record reader for CSV format files
+- JSON record reader: record reader for JSON format files
+- Thrift record reader: record reader for Thrift format files
+- Pinot segment record reader: record reader for Pinot segment
+
+For other file formats, we provide a general interface for record reader - `RecordReader`. To index the file into Pinot
+segment, implement the interface and plug it into the index engine - `SegmentCreationDriverImpl`.
 
 Review comment:
   Done

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services

---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscribe@pinot.apache.org
For additional commands, e-mail: commits-help@pinot.apache.org