schemas/migrations/add_categories.sql

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alter table postmortems add column subsystem varchar(50) NOT NULL DEFAULT '';
alter table postmortems add column owner_team varchar(50) NOT NULL DEFAULT '';
alter table postmortems add column problem_type varchar(50) NOT NULL DEFAULT '';
alter table postmortems add column impact_type varchar(50) NOT NULL DEFAULT '';
alter table postmortems add column incident_cause varchar(50) NOT NULL DEFAULT '';