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Add a correct composite INDEX for the history table
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yhabteab committed Mar 11, 2024
1 parent 0e9810c commit bf7ef0d
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Showing 4 changed files with 9 additions and 3 deletions.
2 changes: 1 addition & 1 deletion schema/mysql/schema.sql
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Expand Up @@ -1289,7 +1289,7 @@ CREATE TABLE history (
CONSTRAINT fk_history_notification_history FOREIGN KEY (notification_history_id) REFERENCES notification_history (id) ON DELETE CASCADE,
CONSTRAINT fk_history_state_history FOREIGN KEY (state_history_id) REFERENCES state_history (id) ON DELETE CASCADE,

INDEX idx_history_event_time (event_time) COMMENT 'History filtered/ordered by event_time',
INDEX idx_history_event_time_event_type (event_time, event_type) COMMENT 'History filtered/ordered by event_time/event_type',
INDEX idx_history_acknowledgement (acknowledgement_history_id),
INDEX idx_history_comment (comment_history_id),
INDEX idx_history_downtime (downtime_history_id),
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2 changes: 2 additions & 0 deletions schema/mysql/upgrades/1.1.2.sql
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@@ -0,0 +1,2 @@
ALTER TABLE history ADD INDEX idx_history_event_time_event_type (event_time, event_type) COMMENT 'History filtered/ordered by event_time/event_type';
ALTER TABLE history DROP INDEX idx_history_event_time;
4 changes: 2 additions & 2 deletions schema/pgsql/schema.sql
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Expand Up @@ -2074,7 +2074,7 @@ ALTER TABLE history ALTER COLUMN comment_history_id SET STORAGE PLAIN;
ALTER TABLE history ALTER COLUMN flapping_history_id SET STORAGE PLAIN;
ALTER TABLE history ALTER COLUMN acknowledgement_history_id SET STORAGE PLAIN;

CREATE INDEX idx_history_event_time ON history(event_time);
CREATE INDEX idx_history_event_time_event_type ON history(event_time, event_type);
CREATE INDEX idx_history_acknowledgement ON history(acknowledgement_history_id);
CREATE INDEX idx_history_comment ON history(comment_history_id);
CREATE INDEX idx_history_downtime ON history(downtime_history_id);
Expand All @@ -2095,7 +2095,7 @@ COMMENT ON COLUMN history.comment_history_id IS 'comment_history.comment_id';
COMMENT ON COLUMN history.flapping_history_id IS 'flapping_history.id';
COMMENT ON COLUMN history.acknowledgement_history_id IS 'acknowledgement_history.id';

COMMENT ON INDEX idx_history_event_time IS 'History filtered/ordered by event_time';
COMMENT ON INDEX idx_history_event_time_event_type IS 'History filtered/ordered by event_time/event_type';
COMMENT ON INDEX idx_history_host_service_id IS 'Host/service history detail filter';

CREATE TABLE sla_history_state (
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4 changes: 4 additions & 0 deletions schema/pgsql/upgrades/1.1.2.sql
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CREATE INDEX idx_history_event_time_event_type ON history(event_time, event_type);
COMMENT ON INDEX idx_history_event_time_event_type IS 'History filtered/ordered by event_time/event_type';

DROP INDEX idx_history_event_time;

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