Maxim Gekk 5217f7b226 [SPARK-26248][SQL] Infer date type from CSV ... ## What changes were proposed in this pull request? The `CSVInferSchema` class is extended to support inferring of `DateType` from CSV input. The attempt to infer `DateType` is performed after inferring `TimestampType`. ## How was this patch tested? Added new test for inferring date types from CSV . It was also tested by existing suites like `CSVInferSchemaSuite`, `CsvExpressionsSuite`, `CsvFunctionsSuite` and `CsvSuite`. Closes #23202 from MaxGekk/csv-date-inferring. Lead-authored-by: Maxim Gekk <max.gekk@gmail.com> Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>		2018-12-17 08:24:51 +08:00
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main	[SPARK-26248][SQL] Infer date type from CSV	2018-12-17 08:24:51 +08:00
test	[SPARK-26248][SQL] Infer date type from CSV	2018-12-17 08:24:51 +08:00