Initialization

AST nodes[15]:

RULE: initializer       ::=    Expression                      END;
RULE: initializer       ::=    Row_initializer                 END;
RULE: Row_initializer   LISTOF initializer | Empty_initializer END;
RULE: Empty_initializer ::=                                    END;

This macro is defined in definitions 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, and 18.
This macro is invoked in definition 1.