Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/16373#discussion_r94004059 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/command/tables.scala --- @@ -619,18 +621,34 @@ case class ShowTablesCommand( // instead of calling tables in sparkSession. val catalog = sparkSession.sessionState.catalog val db = databaseName.getOrElse(catalog.getCurrentDatabase) - val tables = - tableIdentifierPattern.map(catalog.listTables(db, _)).getOrElse(catalog.listTables(db)) - tables.map { tableIdent => - val database = tableIdent.database.getOrElse("") - val tableName = tableIdent.table - val isTemp = catalog.isTemporaryTable(tableIdent) - if (isExtended) { - val information = catalog.getTempViewOrPermanentTableMetadata(tableIdent).toString - Row(database, tableName, isTemp, s"${information}\n") - } else { - Row(database, tableName, isTemp) + if (partitionSpec.isEmpty) { + // Show the information of tables. + val tables = + tableIdentifierPattern.map(catalog.listTables(db, _)).getOrElse(catalog.listTables(db)) + tables.map { tableIdent => + val database = tableIdent.database.getOrElse("") + val tableName = tableIdent.table + val isTemp = catalog.isTemporaryTable(tableIdent) + if (isExtended) { + val information = catalog.getTempViewOrPermanentTableMetadata(tableIdent).toString + Row(database, tableName, isTemp, s"${information}\n") --- End diff -- Do you know why we need `s"${information}\n"`, instead of `information`
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