diff --git a/lib/sql.js b/lib/sql.js
index 895dcd05..0a351bfa 100644
--- a/lib/sql.js
+++ b/lib/sql.js
@@ -201,12 +201,8 @@ BaseSQL.prototype.exists = function (model, id, callback) {
 };
 
 BaseSQL.prototype.find = function find(model, id, callback) {
-    var idNumber = Number(id);
-    if (isNaN(idNumber)) {
-        callback(new Error('id is not a number'));
-    }
     var sql = 'SELECT * FROM ' +
-        this.tableEscaped(model) + ' WHERE ' + this.idColumnEscaped(model) + ' = ' + idNumber + ' LIMIT 1';
+        this.tableEscaped(model) + ' WHERE ' + this.idColumnEscaped(model) + ' = ' + id + ' LIMIT 1';
 
     this.query(sql, function (err, data) {
         if (data && data.length === 1) {
@@ -218,16 +214,16 @@ BaseSQL.prototype.find = function find(model, id, callback) {
     }.bind(this));
 };
 
-BaseSQL.prototype.destroy = function destroy(model, id, callback) {
+BaseSQL.prototype.delete = BaseSQL.prototype.destroy = function destroy(model, id, callback) {
     var sql = 'DELETE FROM ' +
-        this.tableEscaped(model) + ' WHERE ' + this.escapeName('id') + ' = ' + Number(id);
+        this.tableEscaped(model) + ' WHERE ' + this.idColumnEscaped(model) + ' = ' + id;
 
     this.command(sql, function (err) {
         callback(err);
     });
 };
 
-BaseSQL.prototype.destroyAll = function destroyAll(model, callback) {
+BaseSQL.prototype.deleteAll = BaseSQL.prototype.destroyAll = function destroyAll(model, callback) {
     this.command('DELETE FROM ' + this.tableEscaped(model), function (err) {
         if (err) {
             return callback(err, []);