amaliujia commented on code in PR #36586: URL: https://github.com/apache/spark/pull/36586#discussion_r875476033
########## sql/core/src/main/scala/org/apache/spark/sql/internal/CatalogImpl.scala: ########## @@ -97,8 +97,15 @@ class CatalogImpl(sparkSession: SparkSession) extends Catalog { */ @throws[AnalysisException]("database does not exist") override def listTables(dbName: String): Dataset[Table] = { - val tables = sessionCatalog.listTables(dbName).map(makeTable) - CatalogImpl.makeDataset(tables, sparkSession) + if (sessionCatalog.databaseExists(dbName)) { + val tables = sessionCatalog.listTables(dbName).map(makeTable) + CatalogImpl.makeDataset(tables, sparkSession) + } else { + val multiParts = sparkSession.sessionState.sqlParser.parseMultipartIdentifier(dbName) + val plan = ShowTables(UnresolvedNamespace(multiParts), None) + val ret = sparkSession.sessionState.executePlan(plan).toRdd.collect() + CatalogImpl.makeDataset(Seq(), sparkSession) Review Comment: Are you saying we don't construct a logical plan for `listTables`? If so, now I am confused on when we should construct a logical plan (thus to match SQL command) and when we don't.... -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org