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a20edd57d9
Added a row impala_file_format.xml, created impala_hudi.xml, added new file to ditamap, changed id of concept tag from orc to hudi. Change-Id: If210cd545a8deb059e66fd36e62e0df4402fc96c Reviewed-on: http://gerrit.cloudera.org:8080/15418 Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com>
82 lines
2.7 KiB
XML
82 lines
2.7 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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-->
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<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="hudi">
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<title>Using the Hudi File Format</title>
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<titlealts audience="PDF"><navtitle>Hudi Data Files</navtitle></titlealts>
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<prolog>
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<metadata>
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<data name="Category" value="Impala"/>
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<!-- <data name="Category" value="ORC"/> -->
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<data name="Category" value="File Formats"/>
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<data name="Category" value="Tables"/>
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<data name="Category" value="Developers"/>
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<data name="Category" value="Data Analysts"/>
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</metadata>
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</prolog>
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<conbody>
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<p>
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<indexterm audience="hidden">Hudi support in Impala</indexterm> Impala supports Read Optimized
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Queries on Hudi tables as an experimental feature. Read Optimized Queries treat the latest
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table snapshot as the commit or compaction action, expose only base/columnar files in latest
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file slices, and guarantee the same columnar query performance as a non-Hudi columnar
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table.</p>
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<p/>
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<table>
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<title>Hudi Format Support in Impala</title>
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<tgroup cols="5">
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<colspec colname="1" colwidth="10*"/>
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<colspec colname="2" colwidth="10*"/>
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<colspec colname="3" colwidth="20*"/>
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<colspec colname="4" colwidth="30*"/>
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<colspec colname="5" colwidth="30*"/>
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<thead>
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<row>
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<entry>
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File Type
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</entry>
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<entry>
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Format
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</entry>
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<entry>
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Compression Codecs
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</entry>
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<entry>
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Impala Can CREATE?
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</entry>
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<entry>
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Impala Can INSERT?
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</entry>
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</row>
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</thead>
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<tbody>
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<row conref="impala_file_formats.xml#file_formats/hudi_support">
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<entry/>
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</row>
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</tbody>
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</tgroup>
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</table>
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</conbody>
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</concept>
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