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perf: indexing improvement
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@ -20,7 +20,7 @@ pragma mmap_size = 536870912; -- 512MB of mmap
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"##;
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"##;
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/// Latest database version
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/// Latest database version
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pub const DB_VERSION: usize = 8;
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pub const DB_VERSION: usize = 9;
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/// Schema definition
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/// Schema definition
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const INIT_SQL: &str = formatcp!(
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const INIT_SQL: &str = formatcp!(
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@ -49,6 +49,7 @@ content TEXT NOT NULL -- serialized json of event object
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-- Event Indexes
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-- Event Indexes
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CREATE UNIQUE INDEX IF NOT EXISTS event_hash_index ON event(event_hash);
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CREATE UNIQUE INDEX IF NOT EXISTS event_hash_index ON event(event_hash);
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CREATE INDEX IF NOT EXISTS author_index ON event(author);
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CREATE INDEX IF NOT EXISTS author_index ON event(author);
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CREATE INDEX IF NOT EXISTS created_at_index ON event(created_at);
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CREATE INDEX IF NOT EXISTS delegated_by_index ON event(delegated_by);
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CREATE INDEX IF NOT EXISTS delegated_by_index ON event(delegated_by);
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CREATE INDEX IF NOT EXISTS event_composite_index ON event(kind,created_at);
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CREATE INDEX IF NOT EXISTS event_composite_index ON event(kind,created_at);
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@ -396,3 +397,23 @@ PRAGMA user_version = 8;
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}
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}
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Ok(8)
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Ok(8)
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}
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}
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fn mig_8_to_9(conn: &mut PooledConnection) -> Result<usize> {
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info!("database schema needs update from 8->9");
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// Those old indexes were actually helpful...
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let upgrade_sql = r##"
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CREATE INDEX IF NOT EXISTS created_at_index ON event(created_at);
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CREATE INDEX IF NOT EXISTS event_composite_index ON event(kind,created_at);
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PRAGMA user_version = 8;
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"##;
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match conn.execute_batch(upgrade_sql) {
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Ok(()) => {
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info!("database schema upgraded v8 -> v9");
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}
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Err(err) => {
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error!("update failed: {}", err);
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panic!("database could not be upgraded");
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}
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}
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Ok(8)
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}
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