Allow custom engine and column types

lib/mysql.js

@@ -535,6 +535,22 @@ MySQL.prototype.autoupdate = function (models, cb) {
     }
 };
 
+/*!
+ * Create table
+ * @param model
+ * @param cb
+ */
+MySQL.prototype.createTable = function (model, cb) {
+    var metadata = this._models[model].settings[this.name];
+    var engine = metadata && metadata.engine;
+    var sql = 'CREATE TABLE ' + this.tableEscaped(model) +
+        ' (\n  ' + this.propertiesSQL(model) + '\n)';
+    if(engine) {
+        sql += 'ENGINE=' + engine + '\n';
+    }
+    this.query(sql, cb);
+};
+
 /**
  * Check if the models exist
  * @param {String[]} [models] A model name or an array of model names. If not present, apply to all models
@@ -786,11 +802,28 @@ MySQL.prototype.indexSettingsSQL = function (model, prop) {
 
 MySQL.prototype.propertySettingsSQL = function (model, prop) {
     var p = this._models[model].properties[prop];
-    var line =  datatype(p) + ' ' +
+    var line =  this.columnDataType(model, prop) + ' ' +
-    (p.allowNull === false || p['null'] === false ? 'NOT NULL' : 'NULL');
+    (p.nullable === false || p.allowNull === false || p['null'] === false ? 'NOT NULL' : 'NULL');
     return line;
 };
 
+MySQL.prototype.columnDataType = function (model, property) {
+    var columnMetadata = this.columnMetadata(model, property);
+    var colType = columnMetadata && columnMetadata.dataType;
+    if(colType) {
+        colType = colType.toUpperCase();
+    }
+    var prop = this._models[model].properties[property];
+    if(!prop) {
+        return null;
+    }
+    var colLength = columnMetadata && columnMetadata.dataLength || prop.length;
+    if (colType) {
+        return colType + (colLength ? '(' + colLength + ')' : '');
+    }
+    return datatype(prop);
+};
+
 function datatype(p) {
     var dt = '';
     switch (p.type.name) {