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ALTER TABLE ADD PARTATION

Last updated: 2024-08-07 17:15:56

    Description

    Supported engines: Presto and SparkSQL
    Applicable table: External tables
    Purpose: Create one or more partitioning columns for a data table.

    Statement

    ALTER TABLE table_name ADD [IF NOT 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 tbl ADD PARTITION (p1=1, p2='a');
    
    ALTER TABLE tbl ADD IF NOT EXISTS PARTITION (P1 = 1) PARTITION (P2 = 2);
    
    
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