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https://issues.apache.org/jira/browse/SPARK-3131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Teng Qiu updated SPARK-3131:
Description:
There are 4 different compression codec available for ParquetOutputFormat
in Spark SQL it was set as a hard-coded value in
{code}ParquetRelation.defaultCompression{code}
original discuss:
https://github.com/apache/spark/pull/195#discussion-diff-11002083
so we need to add a new config property in SQLConf to allow user to change this
compression codec, and i used similar short names syntax as described in
SPARK-2953
btw, which codec should we use as default? it was set to GZIP
(https://github.com/apache/spark/pull/195/files#diff-4), but i think maybe we
should change this to SNAPPY, since SNAPPY is already the default codec for
shuffling in spark-core (SPARK-2469), and parquet-mr supports Snappy codec
natively.
was:
There are 4 different compression codec available for ParquetOutputFormat
currently it was set as a hard-coded value in
{code}ParquetRelation.defaultCompression{code}
original discuss:
https://github.com/apache/spark/pull/195#discussion-diff-11002083
so we need to add a new config property in SQLConf to allow user change this
compression codec, and i used similar short names syntax as described in
SPARK-2953
btw, which codec should we use as default? it was set to GZIP
(https://github.com/apache/spark/pull/195/files#diff-4), but i think maybe we
should change this to SNAPPY, since SNAPPY is already the default codec for
shuffling in spark-core (SPARK-2469), and parquet-mr supports Snappy codec
natively.
Allow user to set parquet compression codec for writing ParquetFile in
SQLContext
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Key: SPARK-3131
URL: https://issues.apache.org/jira/browse/SPARK-3131
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Teng Qiu
There are 4 different compression codec available for ParquetOutputFormat
in Spark SQL it was set as a hard-coded value in
{code}ParquetRelation.defaultCompression{code}
original discuss:
https://github.com/apache/spark/pull/195#discussion-diff-11002083
so we need to add a new config property in SQLConf to allow user to change
this compression codec, and i used similar short names syntax as described in
SPARK-2953
btw, which codec should we use as default? it was set to GZIP
(https://github.com/apache/spark/pull/195/files#diff-4), but i think maybe we
should change this to SNAPPY, since SNAPPY is already the default codec for
shuffling in spark-core (SPARK-2469), and parquet-mr supports Snappy codec
natively.
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