001package gudusoft.gsqlparser.ir.logical;
002
003/**
004 * Types of relational nodes in the Logical IR.
005 */
006public enum RelNodeKind {
007    TABLE_SCAN,
008    PROJECT,
009    FILTER,
010    JOIN,
011    AGGREGATE,
012    SORT,
013    SET_OP,
014    DML_INSERT,
015    DML_UPDATE,
016    DML_DELETE,
017    DML_MERGE,
018    VENDOR_SPECIFIC
019}