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Revision 7289

script to find and update missing SystemMetadata revision history. https://redmine.dataone.org/issues/2938

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src/system_metadata_revisions.sql
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/**
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 * Correct generated System Metadata entries
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 * 1. find system metadata with incomplete revision history
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 */
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-- these are old (obsoleted) entries that are not marked as such
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select sm.guid, sm.obsoleted_by, sm.obsoletes, sm_by.guid as should_be_obsoleted_by
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from systemmetadata sm, systemmetadata sm_by
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where sm.guid = sm_by.obsoletes
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and sm.obsoleted_by is null;
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-- update them
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BEGIN;
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update systemmetadata sm
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set obsoleted_by = sm_by.guid,
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date_modified = now()
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from systemmetadata sm_by
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where sm.guid = sm_by.obsoletes
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and sm.obsoleted_by is null;
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--ROLLBACK;
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COMMIT;
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-- these are ones that should be marked as newer revisions
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select sm.guid, sm.obsoleted_by, sm.obsoletes, sm_s.guid as should_obsolete
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from systemmetadata sm, systemmetadata sm_s
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where sm.guid = sm_s.obsoleted_by
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and sm.obsoletes is null;
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