Allow unnamed placeholders even if the namedPlaceholders flag is enabled

Author: oamaok

lib/connection.js

@@ -488,6 +488,11 @@ class Connection extends EventEmitter {
   _resolveNamedPlaceholders(options) {
     let unnamed;
     if (this.config.namedPlaceholders || options.namedPlaceholders) {
+      if (Array.isArray(options.values)) {
+        // if an array is provided as the values, assume the conversion is not necessary.
+        // this allows the usage of unnamed placeholders even if the namedPlaceholders flag is enabled.
+        return
+      }
       if (convertNamedPlaceholders === null) {
         convertNamedPlaceholders = require('named-placeholders')();
       }