feat: init logger for ttc server.

Author: youngsofun

core/src/client.rs

@@ -69,7 +69,6 @@ const HEADER_QUERY_CONTEXT: &str = "X-DATABEND-QUERY-CONTEXT";
 const HEADER_SESSION_ID: &str = "X-DATABEND-SESSION-ID";
 const CONTENT_TYPE_ARROW: &str = "application/vnd.apache.arrow.stream";
 const CONTENT_TYPE_ARROW_OR_JSON: &str = "application/vnd.apache.arrow.stream";
-//const CONTENT_TYPE_ARROW_OR_JSON: &str = "application/vnd.apache.arrow.stream,application/json";
 
 static VERSION: Lazy<String> = Lazy::new(|| {
     let version = option_env!("CARGO_PKG_VERSION").unwrap_or("unknown");

ttc/Cargo.toml

@@ -15,6 +15,7 @@ databend-driver = { workspace = true }
 
 bytes = "1"
 clap = { version = "4.4", features = ["derive", "env"] }
+env_logger = "0.11.8"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = { version = "1.0", default-features = false, features = ["std"] }
 tokio = { version = "1.34", features = [

ttc/src/server.rs

@@ -42,6 +42,10 @@ struct Response {
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("warn"))
+        .target(env_logger::Target::Stdout)
+        .init();
+
     let config = Config::parse();
 
     // check dsn