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14 lines
925 B
MySQL
14 lines
925 B
MySQL
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-- Add timestamp indexes for improved performance of event ordering queries
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-- These indexes significantly improve performance of ORDER BY timestamp DESC queries
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-- used in listAllEventsWithStatuses method for alert event retrieval
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-- Add descending timestamp index for consumers_dlq table
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-- This table stores failed event subscription events
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ALTER TABLE consumers_dlq ADD INDEX idx_consumers_dlq_timestamp_desc (timestamp DESC);
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-- Add descending timestamp index for successful_sent_change_events table
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-- This table stores successfully sent event subscription events
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ALTER TABLE successful_sent_change_events ADD INDEX idx_successful_events_timestamp_desc (timestamp DESC);
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-- Add composite index for better performance when filtering by subscription ID and ordering by timestamp
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ALTER TABLE successful_sent_change_events ADD INDEX idx_successful_events_subscription_timestamp (event_subscription_id, timestamp DESC);
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