create tablespace语法树
>>-CREATE
--+-----------------------+---------------------------->
+-LARGE-----------------+
+-REGULAR---------------+
| .-SYSTEM-. |
'-+--------+--TEMPORARY-'
'-USER---'
>--TABLESPACE--tablespace-name---------------------------------->
>--+-----------------------------------------------------------+-->
| .-DATABASE PARTITION GROUP-. |
'-IN--+--------------------------+--db-partition-group-name-'
>--+--------------------------+--------------------------------->
'-PAGESIZE--integer--+---+-'
'-K-'
.-MANAGED BY--AUTOMATIC STORAGE--| size-attributes |---------------------.
>--+------------------------------------------------------------------------+-->
'-MANAGED BY--+-SYSTEM--| system-containers |--------------------------+-'
'-DATABASE--| database-containers |--| size-attributes |-'
>--+---------------------------------+-------------------------->
'-EXTENTSIZE--+-number-of-pages-+-'
'-integer--+-K-+--'
'-M-'
>--+-----------------------------------+------------------------>
'-PREFETCHSIZE--+-AUTOMATIC-------+-'
+-number-of-pages-+
'-integer--+-K-+--'
+-M-+
'-G-'
>--+-----------------------------+------------------------------>
'-BUFFERPOOL--bufferpool-name-'
>--+----------------------------------+------------------------->
'-OVERHEAD--number-of-milliseconds-'
>--+------------------------+----------------------------------->
+-NO FILE SYSTEM CACHING-+
'-FILE SYSTEM CACHING----'
>--+--------------------------------------+--------------------->
'-TRANSFERRATE--number-of-milliseconds-'
>--+---------------------------------+-------------------------><
'-DROPPED TABLE RECOVERY--+-ON--+-'
'-OFF-'
size-attributes
|--+---------------------+--+-----------------------------+----->
'-AUTORESIZE--+-NO--+-' '-INITIALSIZE--integer--+-K-+-'
'-YES-' +-M-+
'-G-'
>--+------------------------------------+----------------------->
'-INCREASESIZE--integer--+-PERCENT-+-'
'-+-K-+---'
+-M-+
'-G-'
>--+-----------------------------+------------------------------|
'-MAXSIZE--+-integer--+-K-+-+-'
| +-M-+ |
| '-G-' |
'-NONE-----------'
system-containers
.----------------------------------------------------------------------.
| .-,------------------. |
V V | |