Schema dumps are performed automatically on SkyVault server startup, if changes in
database schema are detected.
Schema dumps are XML representations of the RDBMS schema. They should conform to the XSD: http://www.alfresco.org/repo/db-schema/db-schema.xsd The XSD file is embedded in the repository.
A schema dump is performed automatically during repository server startup if there were changes made to the database schema. The SkyVault log will indicate if any dumps were performed - entries such as these will be present:
2012-01-30 17:46:58,517 INFO [domain.schema.SchemaBootstrap] [main] Normalized schema dumped to file /tomcat/temp/Alfresco/Alfresco-schema-PostgreSQLDialect-pre-upgrade-alf_-5548956643327704619.xml. 2012-01-30 17:46:58,518 INFO [domain.schema.SchemaBootstrap] [main] Normalized schema dumped to file /tomcat/temp/Alfresco/Alfresco-schema-PostgreSQLDialect-pre-upgrade-avm_-2166257481854030130.xml. 2012-01-30 17:46:58,518 INFO [domain.schema.SchemaBootstrap] [main] Normalized schema dumped to file /tomcat/temp/Alfresco/Alfresco-schema-PostgreSQLDialect-pre-upgrade-jbpm_-2230905975269998715.xml. 2012-01-30 17:46:58,519 INFO [domain.schema.SchemaBootstrap] [main] Normalized schema dumped to file /tomcat/temp/Alfresco/Alfresco-schema-PostgreSQLDialect-pre-upgrade-act_-8103448407472298481.xml.
Similar entries for the post-upgrade files will also be present.
Note: The legacy tool is still included and will create dumps of its own - the log messages look
similar but should not be confused with the new format dumps.