voonhous commented on code in PR #19236:
URL: https://github.com/apache/hudi/pull/19236#discussion_r3557288896
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hudi-spark-datasource/hudi-spark/src/test/scala/org/apache/hudi/functional/TestLanceDataSource.scala:
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@@ -1332,15 +1341,17 @@ class TestLanceDataSource extends
HoodieSparkClientTestBase {
def asInlineDf(idToBytes: Seq[(Int, Array[Byte])]): DataFrame = {
val rawDf = idToBytes.toDF("id", "bytes")
.select($"id", BlobTestHelpers.inlineBlobStructCol("payload",
$"bytes"))
- spark.createDataFrame(rawDf.rdd, canonicalSchema)
+ spark.createDataFrame(rawDf.rdd, canonicalSchema).coalesce(1)
Review Comment:
Good catch, that invariant was load-bearing but never checked. Added the
single-file-group assert right before the anyHadLogs scan, with a fresh
getAllFileGroups call since the stream is single-use.
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