Re: [PATCH - PR] Disable ATTR_EMULATE_PREPARES by default for PDO_Mysql
| From: | Rasmus Lerdorf | Date: | Thu, 28 Jun 2012 03:50:02 +0000 |
| Subject: | Re: [PATCH - PR] Disable ATTR_EMULATE_PREPARES by default for PDO_Mysql | ||
| References: | 1 2 3 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-61015@lists.php.net to get a copy of this message | ||
On 06/27/2012 08:45 PM, Yasuo Ohgaki wrote:
> Hi,
>
> I forgot to mention MySQL's query cache.
> This change may have negative performance impact, since prepared
> query is not cached and native prepared query may not be used by
> other requests.
That's not really true anymore. There are some limitations, yes, but in
general prepared statements are cached since MySQL version 5.1.21
-Rasmus