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TruncateTableCommand Logical Command

TruncateTableCommand is a RunnableCommand.md[logical command] that represents spark-sql-SparkSqlAstBuilder.md#visitTruncateTable[TRUNCATE TABLE] SQL statement.

=== [[creating-instance]] Creating TruncateTableCommand Instance

TruncateTableCommand takes the following to be created:

  • [[tableName]] TableIdentifier
  • [[partitionSpec]] Optional TablePartitionSpec

=== [[run]] Executing Logical Command -- run Method

[source, scala]

run(spark: SparkSession): Seq[Row]

NOTE: run is part of RunnableCommand.md#run[RunnableCommand Contract] to execute (run) a logical command.

run...FIXME

run throws an AnalysisException when executed on external tables:

Operation not allowed: TRUNCATE TABLE on external tables: [tableIdentWithDB]

run throws an AnalysisException when executed on views:

Operation not allowed: TRUNCATE TABLE on views: [tableIdentWithDB]

run throws an AnalysisException when executed with <> on non-partitioned tables:

Operation not allowed: TRUNCATE TABLE ... PARTITION is not supported for tables that are not partitioned: [tableIdentWithDB]

run throws an AnalysisException when executed with <> with spark-sql-DDLUtils.md#verifyPartitionProviderIsHive[filesource partition disabled or partition metadata not in a Hive metastore].


Last update: 2021-05-12
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