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### What changes were proposed in this pull request? This PR remove unnecessary orc version and hive version in doc. ### Does this PR introduce any user-facing change? No. ### How was this patch tested? N/A. Closes #26146 from denglingang/SPARK-24576. Lead-authored-by: denglingang <chitin1027@gmail.com> Co-authored-by: HyukjinKwon <gurwls223@apache.org> Signed-off-by: HyukjinKwon <gurwls223@apache.org>
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layout | title | displayTitle | license |
---|---|---|---|
global | ORC Files | ORC Files | 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. |
Since Spark 2.3, Spark supports a vectorized ORC reader with a new ORC file format for ORC files.
To do that, the following configurations are newly added. The vectorized reader is used for the
native ORC tables (e.g., the ones created using the clause USING ORC
) when spark.sql.orc.impl
is set to native
and spark.sql.orc.enableVectorizedReader
is set to true
. For the Hive ORC
serde tables (e.g., the ones created using the clause USING HIVE OPTIONS (fileFormat 'ORC')
),
the vectorized reader is used when spark.sql.hive.convertMetastoreOrc
is also set to true
.
Property Name | Default | Meaning |
---|---|---|
spark.sql.orc.impl |
native |
The name of ORC implementation. It can be one of native and hive . native means the native ORC support. hive means the ORC library in Hive. |
spark.sql.orc.enableVectorizedReader |
true |
Enables vectorized orc decoding in native implementation. If false , a new non-vectorized ORC reader is used in native implementation. For hive implementation, this is ignored. |