12 lines
354 B
MySQL
12 lines
354 B
MySQL
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-- Your SQL goes here
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ALTER TABLE bots ADD COLUMN active_version INTEGER REFERENCES bot_versions(id);
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-- set most recent bot verison as active
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UPDATE bots
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SET active_version = most_recent.id
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FROM (
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SELECT DISTINCT ON (bot_id) id, bot_id
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FROM bot_versions
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ORDER BY bot_id, created_at DESC
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) most_recent
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WHERE bots.id = most_recent.bot_id;
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