SHOW PARTITIONS (Databricks SQL)

Enumera las particiones de una tabla.

Sintaxis

SHOW PARTITIONS table_name [ partition_spec ]

Parámetros

  • Table_name

    Identifica la tabla. El nombre no debe incluir una especificación temporal.

  • partition_spec

    Parámetro opcional que especifica una lista separada por comas de pares clave-valor para particiones. Cuando se especifica, se devuelven las particiones que coinciden con la especificación de partición.

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

Ejemplos

-- 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|
+----------------------+