Yaohua628 commented on code in PR #38777:
URL: https://github.com/apache/spark/pull/38777#discussion_r1036931467
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sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileSourceStrategy.scala:
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@@ -272,7 +272,10 @@ object FileSourceStrategy extends Strategy with
PredicateHelper with Logging {
case FileFormat.ROW_INDEX =>
fileFormatReaderGeneratedMetadataColumns
.find(_.name == FileFormat.ROW_INDEX_TEMPORARY_COLUMN_NAME)
- .get.withName(FileFormat.ROW_INDEX)
+ // Change the `_tmp_metadata_row_index` to `row_index`,
+ // and also change the nullability to not nullable,
+ // which is consistent with the nullability of `row_index`
field
+ .get.withName(FileFormat.ROW_INDEX).withNullability(false)
Review Comment:
Thanks, Wenchen, I tried that before, but it failed many test cases in
`FileMetadataStructRowIndexSuite`. See [this fix
commit](https://github.com/apache/spark/pull/38777/commits/0f98dd97a3c84a10be6fd7f75468e5d62f17fe82)
and [this
comment](https://github.com/apache/spark/pull/38777#issuecomment-1332079823).
I don't have much context on the `row_index`, not sure what caused the
issue, any idea? Thanks!
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