Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/18824#discussion_r131056819
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala ---
@@ -616,15 +616,24 @@ private[spark] class HiveExternalCatalog(conf:
SparkConf, hadoopConf: Configurat
// Add table metadata such as table schema, partition columns, etc. to
table properties.
val updatedTable = withNewSchema.copy(
properties = withNewSchema.properties ++
tableMetaToTableProps(withNewSchema))
+
+ // If it's a data source table, make sure the original schema is left
unchanged; the
+ // actual schema is recorded as a table property.
+ val tableToStore = if (DDLUtils.isDatasourceTable(updatedTable)) {
+ updatedTable.copy(schema = rawTable.schema)
--- End diff --
I just checked the JIRA description. This sounds a bug we need to resolve.
It needs a little bit complex to fix it. We need to follow what we did for
`create table`. cc @xwu0226 Please help @vanzin address this issue.
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