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graphql-engine/server/src-rsr/migrations/18_to_19.sql
Ajeet D'Souza a66fb42ce2 Make catalog metadata migrations work on all schema versions (fix ) ()
* Separate DB and metadata migrations
* Refactor Migrate.hs to generate list of migrations at compile-time
* Replace ginger with shakespeare to improve performance
* Improve migration log messages
2019-10-11 00:13:57 -05:00

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SQL

-- Make hdb_catalog.hdb_schema_update_event as single row table
-- Delete insert trigger and setup update trigger
DELETE FROM hdb_catalog.hdb_schema_update_event;
CREATE UNIQUE INDEX hdb_schema_update_event_one_row
ON hdb_catalog.hdb_schema_update_event ((occurred_at IS NOT NULL));
ALTER TABLE hdb_catalog.hdb_schema_update_event DROP COLUMN id;
DROP TRIGGER hdb_schema_update_event_notifier ON hdb_catalog.hdb_schema_update_event;
CREATE TRIGGER hdb_schema_update_event_notifier AFTER INSERT OR UPDATE ON
hdb_catalog.hdb_schema_update_event FOR EACH ROW EXECUTE PROCEDURE
hdb_catalog.hdb_schema_update_event_notifier();