Performance Issue after upgrade from 9 to 11

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От Perumal Raj
Тема Performance Issue after upgrade from 9 to 11
Дата
Msg-id CALvqh4rB4a71Cw+YiJ42PKaCrw7gDKzjyOgbZ4eMWTQmmVtoog@mail.gmail.com
обсуждение исходный текст
Ответы Re: Performance Issue after upgrade from 9 to 11  (Adrian Klaver <adrian.klaver@aklaver.com>)
Re: Performance Issue after upgrade from 9 to 11  (Tom Lane <tgl@sss.pgh.pa.us>)
Re: Performance Issue after upgrade from 9 to 11  ("Peter J. Holzer" <hjp-pgsql@hjp.at>)
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Hi All,

We have recently upgraded postgres from 9.2 to 11.6 and started seeing performance issue immediately and  able to fix the performance issue after disabling parameter: enable_seqscan.

Question : 
Should i keep the above parameter always disabled ? If not why the behavior changed in Higher version ?

Note:
Table ANALYZE completed as part of Upgrade activity.

Thanks
Raj

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