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Add unique constraint to last_run.command #145

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Add unique constraint to last_run.command #145

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4 changes: 4 additions & 0 deletions db/create_tables.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,10 @@ CREATE TABLE last_run (
last_message bigint
);

-- Unique constraints required for `last_run` updating
CREATE UNIQUE INDEX CONCURRENTLY last_run_command_uix ON last_run (command);
ALTER TABLE last_run ADD CONSTRAINT last_run_command_uc UNIQUE USING INDEX last_run_command_uix;


-- View needed for metrics

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