Re: extensible enum types - Mailing list pgsql-hackers

From Andrew Dunstan
Subject Re: extensible enum types
Date
Msg-id 4C1F9322.3010600@dunslane.net
Whole thread Raw
In response to Re: extensible enum types  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers

Tom Lane wrote:
>> Adding cache 
>> lookups for the enum rows to the comarison routines made a REINDEX on a 
>> 1m row table where the index is on an enum column (the enum has 500 
>> randomly ordered labels) jump from around 10s to around 70s.
>>     
>
> Hmmm... that's bad, but I bet it's still less than the cost of comparing
> NUMERICs.  Also, did you make any attempt to avoid repetitive cache
> lookups by storing a pointer in fn_extra (cf array comparisons)?
>
>             
>   

No. Will work on that. Thanks.

cheers

andrew


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