swuferhong commented on code in PR #20007:
URL: https://github.com/apache/flink/pull/20007#discussion_r905696463
##########
flink-formats/flink-csv/src/main/java/org/apache/flink/formats/csv/CsvFileFormatFactory.java:
##########
@@ -136,6 +147,45 @@ public BulkFormat<RowData, FileSourceSplit>
createRuntimeDecoder(
public ChangelogMode getChangelogMode() {
return ChangelogMode.insertOnly();
}
+
+ @Override
+ public TableStats reportStatistics(List<Path> files, DataType
producedDataType) {
+ final int totalSampleLineCnt = 100;
Review Comment:
>
Thanks @fsk119 . Not likes Orc and Parquet format, Csv table stats are very
rough estimate values, and don't include getting column statistics. Therefore,
I think this value has little impact on the accuracy of Csv stats results.
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