{ 0 => "AGG_EXPR", 1 => "ARITHMETIC_EXPR", 2 => "BINARY_PRED", 3 => "BOOL_LITERAL", 4 => "CASE_EXPR", 5 => "CAST_EXPR", 6 => "COMPOUND_PRED", 7 => "DATE_LITERAL", 8 => "FLOAT_LITERAL", 9 => "FUNCTION_CALL", 10 => "INT_LITERAL", 11 => "IN_PRED", 12 => "IS_NULL_PRED", 13 => "LIKE_PRED", 14 => "LITERAL_PRED", 15 => "NULL_LITERAL", 16 => "SLOT_REF", 17 => "STRING_LITERAL" }
Set.new([AGG_EXPR, ARITHMETIC_EXPR, BINARY_PRED, BOOL_LITERAL, CASE_EXPR, CAST_EXPR, COMPOUND_PRED, DATE_LITERAL, FLOAT_LITERAL, FUNCTION_CALL, INT_LITERAL, IN_PRED, IS_NULL_PRED, LIKE_PRED, LITERAL_PRED, NULL_LITERAL, SLOT_REF, STRING_LITERAL]).freeze