Github user felixcheung commented on a diff in the pull request: https://github.com/apache/spark/pull/21902#discussion_r205933175 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala --- @@ -1449,6 +1451,16 @@ object SQLConf { .intConf .checkValues((1 to 9).toSet + Deflater.DEFAULT_COMPRESSION) .createWithDefault(Deflater.DEFAULT_COMPRESSION) + + val AVRO_XZ_LEVEL = buildConf("spark.sql.avro.xz.level") + .doc("Compression level for the XZ codec used in writing of AVRO files. " + + "Valid value must be in the range of from 0 to 9 inclusive: " + + "0-3 for fast with medium compression, 4-6 are fairly slow levels with high compression. " + + "The levels 7-9 are like the level 6 but use bigger dictionaries and have higher " + + "compressor and decompressor memory requirements. Default level is 6.") --- End diff -- use `LZMA2Options.PRESET_DEFAULT` in place of literal `6`
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