Mysql源码学习——打造专属语法(2)

        | install

        | kill

        | load

        | lock

        | optimize

        | keycache

        | partition_entry

        | preload

        | prepare

        | purge

        | release

        | rename

        | repair

        | replace

        | reset

        | restore

        | revoke

        | rollback

        | savepoint

        | select

        | set

        | show

        | slave

        | start

        | truncate

        | uninstall

        | unlock

        | update

        | use

        | xa

        ;

select:

          select_init

          {

            LEX *lex= Lex;

            lex->sql_command= SQLCOM_SELECT;

          }

        ;

select_init:

          SELECT_SYM select_init2

        | '(' select_paren ')' union_opt

        ;

select_init2:

          select_part2

          {

            LEX *lex= Lex;

            SELECT_LEX * sel= lex->current_select;