layout: global title: SHOW PARTITIONS displayTitle: SHOW PARTITIONS license: | Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

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Description

The SHOW PARTITIONS statement is used to list partitions of a table. An optional partition spec may be specified to return the partitions matching the supplied partition spec.

Syntax

SHOW PARTITIONS table_identifier [ partition_spec ]

Parameters

  • table_identifier

    Specifies a table name, which may be optionally qualified with a database name.

    Syntax: [ database_name. ] table_name

  • partition_spec

    An optional parameter that specifies a comma separated list of key and value pairs for partitions. When specified, the partitions that match the partition specification are returned.

    Syntax: PARTITION ( partition_col_name = partition_col_val [ , ... ] )

Examples

-- create a partitioned table and insert a few rows.
USE salesdb;
CREATE TABLE customer(id INT, name STRING) PARTITIONED BY (state STRING, city STRING);
INSERT INTO customer PARTITION (state = 'CA', city = 'Fremont') VALUES (100, 'John');
INSERT INTO customer PARTITION (state = 'CA', city = 'San Jose') VALUES (200, 'Marry');
INSERT INTO customer PARTITION (state = 'AZ', city = 'Peoria') VALUES (300, 'Daniel');

-- Lists all partitions for table `customer`
SHOW PARTITIONS customer;
+----------------------+
|             partition|
+----------------------+
|  state=AZ/city=Peoria|
| state=CA/city=Fremont|
|state=CA/city=San Jose|
+----------------------+

-- Lists all partitions for the qualified table `customer`
SHOW PARTITIONS salesdb.customer;
+----------------------+
|             partition|
+----------------------+
|  state=AZ/city=Peoria|
| state=CA/city=Fremont|
|state=CA/city=San Jose|
+----------------------+

-- Specify a full partition spec to list specific partition
SHOW PARTITIONS customer PARTITION (state = 'CA', city = 'Fremont');
+---------------------+
|            partition|
+---------------------+
|state=CA/city=Fremont|
+---------------------+

-- Specify a partial partition spec to list the specific partitions
SHOW PARTITIONS customer PARTITION (state = 'CA');
+----------------------+
|             partition|
+----------------------+
| state=CA/city=Fremont|
|state=CA/city=San Jose|
+----------------------+

-- Specify a partial spec to list specific partition
SHOW PARTITIONS customer PARTITION (city =  'San Jose');
+----------------------+
|             partition|
+----------------------+
|state=CA/city=San Jose|
+----------------------+

Related Statements