Add print (#5)

* 修复插件加载的bug

Author: EricJoy2048

datafusion/src/plugin/plugin_manager.rs

@@ -62,7 +62,6 @@ impl GlobalPluginManager {
         }
         // find library file from udaf_plugin_path
         info!("load plugin from dir:{}", plugin_path);
-        println!("load plugin from dir:{}", plugin_path);
 
         let plugin_files = self.get_all_plugin_files(plugin_path)?;
 
@@ -83,7 +82,7 @@ impl GlobalPluginManager {
                     "not found plugin_declaration in the library: {}",
                     plugin_file.path().to_str().unwrap()
                 );
-                return Ok(());
+                continue;
             }
 
             let dec = dec.unwrap().read();
@@ -140,10 +139,6 @@ impl GlobalPluginManager {
                             "load plugin from library file:{}",
                             item.path().to_str().unwrap()
                         );
-                        println!(
-                            "load plugin from library file:{}",
-                            item.path().to_str().unwrap()
-                        );
                         return Some(item);
                     }
                 }

datafusion/src/plugin/udf.rs

@@ -63,7 +63,6 @@ impl PluginRegistrar for UDFPluginManager {
                     format!("not found fn registrar_udf_plugin in the library: {}", e),
                 ))
             })?;
-        println!("1111111111111111111111");
         let udf_plugin: Box<dyn UDFPlugin> = register_fun();
         udf_plugin
             .udf_names()