zzzzming95 commented on code in PR #37263:
URL: https://github.com/apache/spark/pull/37263#discussion_r928250521
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sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala:
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@@ -922,6 +922,22 @@ object SQLConf {
.checkValues(Set("none", "uncompressed", "snappy", "gzip", "lzo", "lz4",
"brotli", "zstd"))
.createWithDefault("snappy")
+ val PARQUET_COMPRESSION_ZSTD_LEVEL =
buildConf("spark.sql.parquet.zstd.level")
Review Comment:
> what about the existing config `spark.io.compression.zstd.level`? Can't we
just reuse the existing config instead of introducing new ones for each file
format?
spark.io.compression.zstd.level is adapted to `spark.io.compression.codec`.
It only works on internal data, and does not use the `parquet-mr` library, that
is, it is used in a different way. I don't think it can be replicated use.
<img width="908" alt="image"
src="https://user-images.githubusercontent.com/13965087/180647006-08978254-08c6-41ac-be91-40b02caaeff5.png";>
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