Manu Zhang created SPARK-32932:
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Summary: AQE local reader optimizer breaks repartitioning for
dynamic partition overwrite
Key: SPARK-32932
URL: https://issues.apache.org/jira/browse/SPARK-32932
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 3.0.0
Reporter: Manu Zhang
With AQE, local reader optimizer breaks users' repartitioning for dynamic
partition overwrite as in the following case.
{code:java}
test("repartition with local reader") {
withSQLConf(SQLConf.PARTITION_OVERWRITE_MODE.key ->
PartitionOverwriteMode.DYNAMIC.toString,
SQLConf.SHUFFLE_PARTITIONS.key -> "5",
SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true") {
withTable("t") {
val data = for (
i <- 1 to 10;
j <- 1 to 3
) yield (i, j)
data.toDF("a", "b")
.repartition($"b")
.write
.partitionBy("b")
.mode("overwrite")
.saveAsTable("t")
assert(spark.read.table("t").inputFiles.length == 3)
}
}
}{code}
Coalescing shuffle partitions could also break it.
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