HyukjinKwon commented on a change in pull request #26016: [SPARK-24914][SQL] New statistic to improve data size estimate for columnar storage formats URL: https://github.com/apache/spark/pull/26016#discussion_r338386395
########## File path: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/orc/OrcUtils.scala ########## @@ -46,6 +47,17 @@ object OrcUtils extends Logging { "ZLIB" -> ".zlib", "LZO" -> ".lzo") + def rawSize(hadoopConf: Configuration, filePath: Path): BigInt = { + val fs = filePath.getFileSystem(hadoopConf) + val readerOptions = OrcFile.readerOptions(hadoopConf).filesystem(fs) + try { + val reader = OrcFile.createReader(filePath, readerOptions) Review comment: Hm, wouldn't this require the driver side to touch and read every file? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org