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22 lines
586 B
MySQL
22 lines
586 B
MySQL
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-- Deletes all messages from a list of channel names.
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CREATE FUNCTION mq_clear(channel_names TEXT[])
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RETURNS VOID AS $$
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BEGIN
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WITH deleted_ids AS (
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DELETE FROM mq_msgs WHERE channel_name = ANY(channel_names) RETURNING id
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)
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DELETE FROM mq_payloads WHERE id IN (SELECT id FROM deleted_ids);
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END;
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$$ LANGUAGE plpgsql;
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-- Deletes all messages.
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CREATE FUNCTION mq_clear_all()
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RETURNS VOID AS $$
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BEGIN
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WITH deleted_ids AS (
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DELETE FROM mq_msgs RETURNING id
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)
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DELETE FROM mq_payloads WHERE id IN (SELECT id FROM deleted_ids);
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END;
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$$ LANGUAGE plpgsql;
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