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https://github.com/scsibug/nostr-rs-relay.git
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perf: schema updates for better event indexing
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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 = 7;
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pub const DB_VERSION: usize = 8;
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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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@ -48,11 +48,9 @@ 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 created_at_index ON event(created_at);
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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 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 kind_index ON event(kind);
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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 kind_created_index ON event(kind,created_at);
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-- Tag Table
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-- Tag Table
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-- Tag values are stored as either a BLOB (if they come in as a
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-- Tag values are stored as either a BLOB (if they come in as a
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@ -158,6 +156,9 @@ pub fn upgrade_db(conn: &mut PooledConnection) -> Result<()> {
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if curr_version == 6 {
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if curr_version == 6 {
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curr_version = mig_6_to_7(conn)?;
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curr_version = mig_6_to_7(conn)?;
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}
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}
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if curr_version == 7 {
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curr_version = mig_7_to_8(conn)?;
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}
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if curr_version == DB_VERSION {
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if curr_version == DB_VERSION {
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info!(
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info!(
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"All migration scripts completed successfully. Welcome to v{}.",
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"All migration scripts completed successfully. Welcome to v{}.",
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@ -374,3 +375,24 @@ PRAGMA user_version = 7;
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}
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}
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Ok(7)
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Ok(7)
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}
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}
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fn mig_7_to_8(conn: &mut PooledConnection) -> Result<usize> {
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info!("database schema needs update from 7->8");
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// Remove redundant indexes, and add a better multi-column index.
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let upgrade_sql = r##"
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DROP INDEX IF EXISTS created_at_index;
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DROP INDEX IF EXISTS kind_index;
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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 v7 -> v8");
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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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