build: bump version to 0.7.8

Cargo.lock

@@ -1096,7 +1096,7 @@ checksum = "38bf9645c8b145698bb0b18a4637dcacbc421ea49bef2317e4fd8065a387cf21"
 
 [[package]]
 name = "nostr-rs-relay"
-version = "0.7.7"
+version = "0.7.8"
 dependencies = [
  "anyhow",
  "bitcoin_hashes",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "nostr-rs-relay"
-version = "0.7.7"
+version = "0.7.8"
 edition = "2021"
 authors = ["Greg Heartsfield <scsibug@imap.cc>"]
 description = "A relay implementation for the Nostr protocol"

src/db.rs

@@ -76,6 +76,7 @@ pub fn build_pool(
         .test_on_check_out(true) // no noticeable performance hit
         .min_idle(Some(min_size))
         .max_size(max_size)
+        .max_lifetime(Some(Duration::from_secs(60)))
         .build(manager)
         .unwrap();
     info!(

src/schema.rs

@@ -20,7 +20,7 @@ pragma mmap_size = 536870912; -- 512MB of mmap
 "##;
 
 /// Latest database version
-pub const DB_VERSION: usize = 9;
+pub const DB_VERSION: usize = 10;
 
 /// Schema definition
 const INIT_SQL: &str = formatcp!(
@@ -67,6 +67,7 @@ FOREIGN KEY(event_id) REFERENCES event(id) ON UPDATE CASCADE ON DELETE CASCADE
 );
 CREATE INDEX IF NOT EXISTS tag_val_index ON tag(value);
 CREATE INDEX IF NOT EXISTS tag_val_hex_index ON tag(value_hex);
+CREATE INDEX IF NOT EXISTS tag_composite_index ON tag(event_id,name,value_hex,value);
 
 -- NIP-05 User Validation
 CREATE TABLE IF NOT EXISTS user_verification (
@@ -163,7 +164,9 @@ pub fn upgrade_db(conn: &mut PooledConnection) -> Result<()> {
             if curr_version == 8 {
                 curr_version = mig_8_to_9(conn)?;
             }
-
+            if curr_version == 9 {
+                curr_version = mig_9_to_10(conn)?;
+            }
             if curr_version == DB_VERSION {
                 info!(
                     "All migration scripts completed successfully.  Welcome to v{}.",
@@ -419,5 +422,24 @@ PRAGMA user_version = 9;
             panic!("database could not be upgraded");
         }
     }
-    Ok(8)
+    Ok(9)
+}
+
+fn mig_9_to_10(conn: &mut PooledConnection) -> Result<usize> {
+    info!("database schema needs update from 9->10");
+    // Those old indexes were actually helpful...
+    let upgrade_sql = r##"
+CREATE INDEX IF NOT EXISTS tag_composite_index ON tag(event_id,name,value_hex,value);
+PRAGMA user_version = 10;
+"##;
+    match conn.execute_batch(upgrade_sql) {
+        Ok(()) => {
+            info!("database schema upgraded v9 -> v10");
+        }
+        Err(err) => {
+            error!("update failed: {}", err);
+            panic!("database could not be upgraded");
+        }
+    }
+    Ok(10)
 }

src/server.rs

@@ -637,7 +637,7 @@ async fn nostr_server(
                                     if let Some(previous_query) = running_queries.insert(s.id.to_owned(), abandon_query_tx) {
                     previous_query.send(()).ok();
                                     }
-                                    // start a database query
+                                    // start a database query.  this spawns a blocking database query on a worker thread.
                                     db::db_query(s, cid.to_owned(), pool.clone(), query_tx.clone(), abandon_query_rx).await;
                 },
                 Err(e) => {