viirya commented on code in PR #52925:
URL: https://github.com/apache/spark/pull/52925#discussion_r2502090172
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sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala:
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@@ -4063,6 +4063,19 @@ object SQLConf {
.checkValues(Set("none", "zstd", "lz4"))
.createWithDefault("none")
+ val ARROW_EXECUTION_ZSTD_COMPRESSION_LEVEL =
+ buildConf("spark.sql.execution.arrow.zstd.compressionLevel")
+ .doc("Compression level for Zstandard (zstd) codec when compressing
Arrow IPC data. " +
+ "This config is only used when
spark.sql.execution.arrow.compressionCodec is set to " +
+ "'zstd'. Valid values are integers from 1 (fastest, lowest
compression) to 22 " +
+ "(slowest, highest compression). The default value 3 provides a good
balance between " +
+ "compression speed and compression ratio.")
+ .version("4.1.0")
+ .intConf
+ .checkValue(level => level >= 1 && level <= 22,
+ "Zstd compression level must be between 1 and 22")
+ .createWithDefault(3)
Review Comment:
I mean Arrow `ZstdCompressionCodec`...
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