[Moscow.pm] [ Moscow.pm] ORM . uuoklfifffffffyifufffffffffuuufffufcfhvfghcgfufiffffuhhppoooplmkff

Ivan Panchenko ivan stack.net
28 02:34:52 PDT 2011


Lolllb
Fpkppbubbp

  <mshogin  gmail.com> ():

>>
>> > ,  .
>> >
>> > ORM - !
>> >
>> >   SQL (    ) -       
>> >   .
>> >   ORM   ,     
>> 
>> >    ,    .
>> >   ?    ?
>> >        HASH JOIN,     NESTED
>> > LOOP.
>> >
>> >        
>> :
>> >  - table full scan
>> >  - index range scan + table access by rowid
>> >  - index range scan
>> >  - index full scan
>> >
>> >    ?
>>
>>          1  100 . 
>>  $dbh  DBIC    .       DBIC
>>   DBIC.         
>>    :)
>>
>
>, ,    .      .
>+       .
>
>
>
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> 
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