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DocumentationData Lake ComputeSQL StatementSuperSQL StatementUnified StatementDDL StatementALTER TABLEALTER TABLE ADD PARTATION
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 tablepartition_column: Partitioning column namepartition_col_value: Partitioning column valueExample
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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