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ALTER TABLE DROP PARTITION

Last updated: 2024-08-07 17:16:26

    Description

    Supported engines: Presto and SparkSQL
    Applicable table: External tables
    Purpose: Delete a partitioning column of a data table.

    Standard Statement

    ALTER TABLE table_name DROP [IF EXISTS] PARTITION (partition_spec) [,PARTITION (partition_spec), ...]
    
    partition_spec:
    : partition_column = partition_col_value, partition_column = partition_col_value, ...

    Parameter

    table_name: Name of the target table partition_column: Partitioning column name partition_col_value: Partitioning column value

    Example

    ALTER TABLE page_view DROP PARTITION (dt='2008-08-08', country='us')
    
    ALTER TABLE `page_view` DROP
    PARTITION (`dt` = '2008-08-08', `country` = 'us'),
    PARTITION (`dt` = '2008-08-08', `country` = 'us'),
    PARTITION (`dt` = '2008-08-08', `country` = 'us')
    
    
    
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