Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/19124#discussion_r137141966
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceStrategy.scala
---
@@ -130,10 +130,12 @@ case class DataSourceAnalysis(conf: SQLConf) extends
Rule[LogicalPlan] with Cast
override def apply(plan: LogicalPlan): LogicalPlan = plan transform {
case CreateTable(tableDesc, mode, None) if
DDLUtils.isDatasourceTable(tableDesc) =>
+ DDLUtils.checkFieldNames(tableDesc)
CreateDataSourceTableCommand(tableDesc, ignoreIfExists = mode ==
SaveMode.Ignore)
case CreateTable(tableDesc, mode, Some(query))
if query.resolved && DDLUtils.isDatasourceTable(tableDesc) =>
+ DDLUtils.checkFieldNames(tableDesc.copy(schema = query.schema))
CreateDataSourceTableAsSelectCommand(tableDesc, mode, query)
case InsertIntoTable(l @ LogicalRelation(_: InsertableRelation, _, _,
_),
--- End diff --
Ur, if you don't mind, I'll proceed `INSERT INTO` as another PR.
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