viirya commented on a change in pull request #26667: [SPARK-29922][SQL] SHOW
FUNCTIONS should do multi-catalog resolution
URL: https://github.com/apache/spark/pull/26667#discussion_r351986877
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/catalyst/analysis/ResolveSessionCatalog.scala
##########
@@ -455,6 +455,23 @@ class ResolveSessionCatalog(
ShowTablePropertiesCommand(
tableName.asTableIdentifier,
propertyKey)
+
+ case ShowFunctionsStatement(userScope, systemScope, pattern, fun) =>
+ val (database, function) = fun match {
+ case Some(CatalogAndIdentifierParts(catalog, functionName)) =>
+ if (isSessionCatalog(catalog)) {
+ functionName match {
+ case Seq(db, fn) => (Some(db), Some(fn))
+ case Seq(fn) => (None, Some(fn))
+ case _ =>
+ throw new AnalysisException(s"Unsupported function name
'${functionName.quoted}'")
+ }
+ } else {
+ throw new AnalysisException (s"SHOW FUNCTIONS is only supported in
v1 catalog")
Review comment:
this part is duplicate to parseV1Table.
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