[drupal-devel] MySQL HEAP-tables
gabor at hojtsy.hu
Mon Sep 12 17:43:20 UTC 2005
> And reading further, its memory waste may be huge. It says:
>>MEMORY tables use a fixed record length format.
> So even if we change the longtext and text in the cache table to be
> varchar, it will still be treated as char, and A LOT OF memory would
> be wasted.
And you cannot change it to (var)char, since cache entries mostly exceed
the 256 chars length.
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