Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/16517#discussion_r96566171
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveStrategies.scala ---
@@ -86,6 +86,47 @@ class DetermineHiveSerde(conf: SQLConf) extends
Rule[LogicalPlan] {
}
}
+class HiveAnalysis(session: SparkSession) extends Rule[LogicalPlan] {
+ override def apply(plan: LogicalPlan): LogicalPlan = plan
resolveOperators {
+ case InsertIntoTable(table: MetastoreRelation, partSpec, query,
overwrite, ifNotExists)
+ if hasBeenPreprocessed(table.output,
table.partitionKeys.toStructType, partSpec, query) =>
+ InsertIntoHiveTable(table, partSpec, query, overwrite, ifNotExists)
+
+ case CreateTable(tableDesc, mode, Some(query)) if
DDLUtils.isHiveTable(tableDesc) =>
+ // Currently `DataFrameWriter.saveAsTable` doesn't support the
Append mode of hive serde
+ // tables yet.
+ if (mode == SaveMode.Append) {
+ throw new AnalysisException(
+ "CTAS for hive serde tables does not support append semantics.")
+ }
+
+ val dbName =
tableDesc.identifier.database.getOrElse(session.catalog.currentDatabase)
+ CreateHiveTableAsSelectCommand(
+ tableDesc.copy(identifier = tableDesc.identifier.copy(database =
Some(dbName))),
+ query,
+ mode == SaveMode.Ignore)
+ }
+
+ /**
+ * Returns true if the [[InsertIntoTable]] plan has already been
preprocessed by analyzer rule
+ * [[PreprocessTableInsertion]]. It is important that this
rule([[HiveAnalysis]]) has to
+ * be run after [[PreprocessTableInsertion]], to normalize the column
names in partition spec and
--- End diff --
I think this version is good for now.
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