001package gudusoft.gsqlparser.resolver2.binding;
002
003/**
004 * Kind of reference attached to a {@link BindingReference}.
005 *
006 * <ul>
007 *   <li>{@link #COLUMN} — a column reference (qualified or unqualified)</li>
008 *   <li>{@link #TABLE}  — a table reference</li>
009 *   <li>{@link #ALIAS}  — a reference resolving via a table/CTE/subquery alias</li>
010 *   <li>{@link #STAR}   — a {@code *} (qualified or unqualified) reference</li>
011 * </ul>
012 */
013public enum BindingReferenceKind {
014    COLUMN,
015    TABLE,
016    ALIAS,
017    STAR
018}