Re: Logical replication without a Primary Key
От | Petr Jelinek |
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Тема | Re: Logical replication without a Primary Key |
Дата | |
Msg-id | 786d987f-97f3-037d-b4e5-b9e30fcc8487@2ndquadrant.com обсуждение исходный текст |
Ответ на | Re: Logical replication without a Primary Key ("Joshua D. Drake" <jd@commandprompt.com>) |
Ответы |
Re: Logical replication without a Primary Key
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Список | pgsql-hackers |
On 07/12/17 15:32, Joshua D. Drake wrote: > On 12/07/2017 05:30 AM, Peter Eisentraut wrote: >> >>> How does that work? Is it using one of the hidden columns on a row? >> It means that for example if an update record is produced, the entire >> row is included in the record as the key. > > Thanks Peter, Craig also responded, > > The confusion I have is what if we have two rows that are identical and > now that I think about it we would just update both rows, yes? That > would make sense because it would produce two updated rows. > No it won't, it will update only one row, it does not try to find multiple matching rows. -- Petr Jelinek http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
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