yuchenhuo commented on a change in pull request #27642: [SPARK-30885][SQL] V1
table name should be fully qualified if catalog name is provided
URL: https://github.com/apache/spark/pull/27642#discussion_r383047812
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/catalyst/analysis/ResolveSessionCatalog.scala
##########
@@ -449,8 +454,17 @@ class ResolveSessionCatalog(
partitionSpec)
case ShowColumnsStatement(tbl, ns) =>
+ if (ns.isDefined && ns.get.length > 1) {
+ throw new AnalysisException(
+ s"Namespace name should have only one part if specified:
${ns.get.quoted}")
+ }
+ val nameParts = if (ns.isDefined && tbl.length == 1) {
Review comment:
Actually, the part confuses me is when would `tbl.length != 1`. Is it
because sometimes we would keep the namespace in the table name? It just feels
strange that ns might not represent the actual namespace for the table.
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