Add a correct composite INDEX for the history table

Icinga · Mar 11, 2024 · 59fcfd0 · 59fcfd0
1 parent 0e9810c
commit 59fcfd0
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Showing 4 changed files with 8 additions and 2 deletions.
diff --git a/schema/mysql/schema.sql b/schema/mysql/schema.sql
@@ -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),

diff --git a/schema/mysql/upgrades/1.1.2.sql b/schema/mysql/upgrades/1.1.2.sql
@@ -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;
diff --git a/schema/pgsql/schema.sql b/schema/pgsql/schema.sql
@@ -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);

diff --git a/schema/pgsql/upgrades/1.1.2.sql b/schema/pgsql/upgrades/1.1.2.sql
@@ -0,0 +1,4 @@
+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;