Re: Query plan changes after pg_dump / pg_restore

It's the same (physical) server as well as the same PostGreSQL daemon,
so yes.

The only difference is the actual database, the test database is made
from a backup of the live database and restored onto the same PostGreSQL
server.
So if I run "show databases" in psql i get:
- test
- live

Makes sense??

/Jona

Christopher Kings-Lynne wrote:

> Is effective_cache_size set the same on the test and live?
>
> Jona wrote:
>
>> Thanks... have notified our sys admin of that so he can make the
>> correct changes.
>>
>> It still doesn't explain the difference in query plans though?
>>
>> I mean, it's the same database server the two instances of the same
>> database is running on.
>> One instance (the live) just insists on doing the seq scan of the 50k
>> records in Price_Tbl and the 6.5k records in SCT2SubCatType_Tbl.
>> Seems weird....
>>
>> Cheers
>> Jona
>>
>> Christopher Kings-Lynne wrote:
>>
>>>>   Thank you for the swift reply, the following is the output of the
>>>> SHOW ALL for shared_buffers and effective_cache_size.
>>>> shared_buffers:  13384
>>>> effective_cache_size: 4000
>>>> server memory: 2GB
>>>
>>>
>>>
>>>
>>> effective_cache_size should be 10-100x larger perhaps...
>>>
>>> Chris
>>
>>
>>
>
>
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