Alter Standard Table - Swap

Swaps the table with another table. This operation exchanges the table names and metadata atomically.

Known limitations:

  • This change type does not support automatic rollback.

  • Snowflake snapshots created with Liquibase Secure 5.1 are incompatible with earlier versions due to enhanced object type detection for TABLES and VIEWS. Regenerate all snapshots with 5.1 after upgrading to avoid false differences in diff and diff-changelog operations.

Available attributes

Attribute

Type

Description

Required

catalogName

String

Name of the catalog (database) containing the table

No

schemaName

String

Name of the schema containing the table

No

tableName

String

Name of the table to alter

Yes

ifExists

Boolean

Only execute if the table exists

No

swapWith nested attributes

Attribute

Type

Description

Required

targetTable

String

Name of the table to swap with

Yes

<?xml version="1.0" encoding="UTF-8"?>
<databaseChangeLog
  xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
  xmlns:pro-snowflake="http://www.liquibase.org/xml/ns/pro-snowflake"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
        http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-latest.xsd
        http://www.liquibase.org/xml/ns/pro-snowflake
        http://www.liquibase.org/xml/ns/pro-snowflake/liquibase-pro-snowflake-latest.xsd">
  <!-- Simple swap -->
  <changeSet id="swap-tables" author="examples">
    <pro-snowflake:alterStandardTable tableName="PRODUCTION_TABLE">
      <pro-snowflake:swapWith targetTable="STAGING_TABLE"/>
    </pro-snowflake:alterStandardTable>
  </changeSet>
  <!-- Blue/green deployment swap -->
  <changeSet id="swap-blue-green" author="examples">
    <pro-snowflake:alterStandardTable
            schemaName="PROD"
            tableName="ACTIVE_TABLE">
      <pro-snowflake:swapWith targetTable="NEW_VERSION_TABLE"/>
    </pro-snowflake:alterStandardTable>
  </changeSet>
</databaseChangeLog>