MaxGekk commented on a change in pull request #33709:
URL: https://github.com/apache/spark/pull/33709#discussion_r688869845
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File path:
mllib/src/test/scala/org/apache/spark/ml/source/image/ImageFileFormatSuite.scala
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@@ -95,14 +96,14 @@ class ImageFileFormatSuite extends SparkFunSuite with
MLlibTestSparkContext {
.collect()
assert(Set(result: _*) === Set(
- Row("29.5.a_b_EGDP022204.jpg", "kittens", "2018-01"),
Review comment:
After the changes, the partition value `2018-01` became a valid date
value. New partition formatter can parse it as 2018-01-01, see patterns that
supported by the CAST expression:
https://github.com/apache/spark/blob/ed0e351f05ac6edc132c3a630206b2031c419e1c/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala#L228
As a consequence, Spark infers DateType as the type of partition values. And
finally, it converts all strings to the type.
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