feat(757) support returning an array of results if multiResult: true passed in options.

Author: lukemurray

lib/query.js

@@ -18,6 +18,7 @@ var Query = function(config, values, callback) {
 
   config = utils.normalizeQueryConfig(config, values, callback);
 
+  this.multiResult = config.multiResult;
   this.text = config.text;
   this.values = config.values;
   this.rows = config.rows;
@@ -31,7 +32,10 @@ var Query = function(config, values, callback) {
   if(process.domain && config.callback) {
     this.callback = process.domain.bind(config.callback);
   }
-  this._result = new Result(config.rowMode, config.types);
+  this.rowMode = config.rowMode;
+  // the active result in muti result mode
+  this._result = new Result(this.rowMode);
+  this._resultsArray = [];
   this.isPreparedStatement = false;
   this._canceledDueToError = false;
   this._promise = null;
@@ -95,6 +99,11 @@ Query.prototype.handleCommandComplete = function(msg, con) {
   if(this.isPreparedStatement) {
     con.sync();
   }
+  // new result for next query
+  if(this.multiResult) {
+    this._resultsArray.push(this._result);
+    this._result = new Result(this.rowMode);
+  }
 };
 
 //if a named prepared statement is created with empty query text
@@ -111,7 +120,7 @@ Query.prototype.handleReadyForQuery = function() {
     return this.handleError(this._canceledDueToError);
   }
   if(this.callback) {
-    this.callback(null, this._result);
+    this.callback(null, this.multiResult ? this._resultsArray : this._result);
   }
   this.emit('end', this._result);
 };