cloud-fan commented on a change in pull request #34747:
URL: https://github.com/apache/spark/pull/34747#discussion_r759061265
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala
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@@ -424,27 +422,21 @@ trait CheckAnalysis extends PredicateHelper with
LookupCatalog {
|the ${ordinalNumber(ti + 1)} table has
${child.output.length} columns
""".stripMargin.replace("\n", " ").trim())
}
- val isUnion = operator.isInstanceOf[Union]
- val dataTypesAreCompatibleFn = if (isUnion) {
- (dt1: DataType, dt2: DataType) =>
- !DataType.equalsStructurally(dt1, dt2, true)
- } else {
- // SPARK-18058: we shall not care about the nullability of
columns
- (dt1: DataType, dt2: DataType) =>
- TypeCoercion.findWiderTypeForTwo(dt1.asNullable,
dt2.asNullable).isEmpty
- }
+ val dataTypesAreCompatibleFn =
getDataTypesAreCompatibleFn(operator)
// Check if the data types match.
dataTypes(child).zip(ref).zipWithIndex.foreach { case ((dt1,
dt2), ci) =>
// SPARK-18058: we shall not care about the nullability of
columns
if (dataTypesAreCompatibleFn(dt1, dt2)) {
+ operator.setTagValue(DATA_TYPE_MISMATCH_ERROR, true)
Review comment:
do we need to set the tag here? it's always the root node and it's very
easy to find it.
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