| From: | "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com> |
|---|---|
| To: | 'Melih Mutlu' <m(dot)melihmutlu(at)gmail(dot)com> |
| Cc: | "shiy(dot)fnst(at)fujitsu(dot)com" <shiy(dot)fnst(at)fujitsu(dot)com>, "Takamichi Osumi (Fujitsu)" <osumi(dot)takamichi(at)fujitsu(dot)com>, Euler Taveira <euler(at)eulerto(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
| Subject: | RE: Allow logical replication to copy tables in binary format |
| Date: | 2023-03-01 15:40:43 |
| Message-ID: | TYAPR01MB586666B5C9D0F1C99E91117BF5AD9@TYAPR01MB5866.jpnprd01.prod.outlook.com |
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| Lists: | pgsql-hackers |
Dear Melih,
If we do not have to treat the case Shi pointed out[1] as code-level, I agreed to
same option binary because it is simpler. I read the use-cases addressed by Bharath[2]
and I cannot find advantage for case 1 and 3 expect the case that binary functions
are not implemented.
Previously I said that the combination of "copy_format = binary" and "copy_data = false"
seemed strange[3], but this approach could solve it and other related ones
automatically.
I think we should add description to doc that it is more likely happen to fail
the initial copy user should enable binary format after synchronization if
tables have original datatype.
[1]: https://www.postgresql.org/message-id/OSZPR01MB6310B58F069FF8E148B247FDFDA49%40OSZPR01MB6310.jpnprd01.prod.outlook.com
[2] https://www.postgresql.org/message-id/CALj2ACXiUsJoXt%3DfMpa4yYseB5h3un_syVh-J3RxL4-6r9Dx2A%40mail.gmail.com
[3]: https://www.postgresql.org/message-id/TYAPR01MB5866968CF42FBAB73E8EEDF8F5AA9%40TYAPR01MB5866.jpnprd01.prod.outlook.com
Best Regards,
Hayato Kuroda
FUJITSU LIMITED
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