Re: Detecting renamed columns via pgouput in logical replication ?

Поиск
Список
Период
Сортировка
От Andreas Andreakis
Тема Re: Detecting renamed columns via pgouput in logical replication ?
Дата
Msg-id CAFtXTgtkLNgMZB5F-bRfG6C2hLwCTpssQRH+09N8UMpk0eyEcw@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Detecting renamed columns via pgouput in logical replication ?  ("David G. Johnston" <david.g.johnston@gmail.com>)
Ответы Re: Detecting renamed columns via pgouput in logical replication ?
Re: Detecting renamed columns via pgouput in logical replication ?
Список pgsql-general
Thx for replying David.

According to https://www.postgresql.org/docs/10/protocol-logicalrep-message-formats.html it looks like certain schema information is embedded via pgoutput such as column names and types. However, if a new column name appears and a previous not, then it is currently not possible to differentiate if a column was renamed VS if a new column was added and an old dropped.

There are additional schema changes that are currently not covered, such as changes in default values. 

Are there plans to add comprehensive schema change detection abilities via logical replication ? either by embedding more information into pgoutput or perhaps by embedding the schema DDLs ?  

cheers





On Sun, Apr 26, 2020 at 11:07 PM David G. Johnston <david.g.johnston@gmail.com> wrote:
On Thursday, April 16, 2020, Andreas Andreakis <andreas.andreakis@gmail.com> wrote:

Does this allow to detect column renames ?

The database schema and DDL commands are not replicated“


David J.

В списке pgsql-general по дате отправления:

Предыдущее
От: "David G. Johnston"
Дата:
Сообщение: Re: Detecting renamed columns via pgouput in logical replication ?
Следующее
От: "David G. Johnston"
Дата:
Сообщение: Re: Detecting renamed columns via pgouput in logical replication ?