| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | Greg Stark <stark(at)mit(dot)edu> |
| Cc: | Kevin Grittner <kgrittn(at)ymail(dot)com>, Noah Misch <noah(at)leadboat(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Marko Tiikkaja <pgmail(at)joh(dot)to>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Materialized views WIP patch |
| Date: | 2013-02-21 13:22:16 |
| Message-ID: | 51261F88.9060101@gmx.net |
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| Lists: | pgsql-committers pgsql-hackers |
On 2/20/13 11:14 PM, Greg Stark wrote:
> That's not entirely true. From the database's point of view, TRUNCATE
> is in many ways actually DDL.
Whether something is DDL or DML or a read operation (query) is not an
implementation detail, it's a user-exposed category. Since TRUNCATE is
logically equivalent to DELETE, it's a DML operation, as far as the user
is concerned.
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