Skip to content

[SPARK-46648][SQL] Use zstd as the default ORC compression #44654

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
dongjoon-hyun wants to merge 1 commit into from
Closed

[SPARK-46648][SQL] Use zstd as the default ORC compression #44654

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion docs/sql-data-sources-orc.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -240,7 +240,7 @@ Data source options of ORC can be set via:
</tr>
<tr>
<td><code>compression</code></td>
<td><code>snappy</code></td>
<td><code>zstd</code></td>
<td>compression codec to use when saving to file. This can be one of the known case-insensitive shorten names (none, snappy, zlib, lzo, zstd and lz4). This will override <code>orc.compress</code> and <code>spark.sql.orc.compression.codec</code>.</td>
<td>write</td>
</tr>
Expand Down
1 change: 1 addition & 0 deletions docs/sql-migration-guide.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ license: |
- `spark.sql.parquet.int96RebaseModeInRead` instead of `spark.sql.legacy.parquet.int96RebaseModeInRead`
- `spark.sql.avro.datetimeRebaseModeInWrite` instead of `spark.sql.legacy.avro.datetimeRebaseModeInWrite`
- `spark.sql.avro.datetimeRebaseModeInRead` instead of `spark.sql.legacy.avro.datetimeRebaseModeInRead`
- Since Spark 4.0, the default value of `spark.sql.orc.compression.codec` is changed from `snappy` to `zstd`. To restore the previous behavior, set `spark.sql.orc.compression.codec` to `snappy`.

## Upgrading from Spark SQL 3.4 to 3.5

Expand Down
2 changes: 1 addition & 1 deletion sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1211,7 +1211,7 @@ object SQLConf {
.stringConf
.transform(_.toLowerCase(Locale.ROOT))
.checkValues(Set("none", "uncompressed", "snappy", "zlib", "lzo", "zstd", "lz4"))
.createWithDefault("snappy")
.createWithDefault("zstd")

val ORC_IMPLEMENTATION = buildConf("spark.sql.orc.impl")
.doc("When native, use the native version of ORC support instead of the ORC library in Hive. " +
Expand Down