var Expr = require('./expr');

/**
 * The equivalent of a SQL field.
 *
 * @param {string} taget The name of the owner table
 */
module.exports = new Class({
	Extends: Expr
	,Tag: 'sql-field'
	,Properties: {
		/**
		 * The column name.
		 */
		name: {
			type: String
			,value: null
		},
		/**
		 * The source table name or its alias if it has been specified.
		 */
		target: {
			type: String
			,value: null
		}
	}

	,render: function() {
		return this.renderPreIdent(this.target)
			+ this.renderIdent(this.name);
	}
});