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Source postgres: fix typo in documentation #6476

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Sep 28, 2021
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Source postgres: fix typo in documentation #6476

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2 changes: 1 addition & 1 deletion docs/integrations/sources/postgres.md
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Expand Up @@ -189,7 +189,7 @@ If you would like to use `wal2json` plugin, please change `pgoutput` to `wal2jso

#### Create publications and replication identities for tables

For each table you want to replicate with CDC, you should add the replication identity \(the method of distinguishing between rows\) first. We recommend using `ALTER TABLE tbl1 REPLICA IDENTITY DEFAULT;` to use primary keys to distinguish between rows. After setting the replication identity, you will need to run `CREATE PUBLICATION airbyte_publication FOR TABLES <tbl1, tbl2, tbl3>;`. This publication name is customizable. **You must add the replication identity before creating the publication. Otherwise, `ALTER`/`UPDATE`/`DELETE` statements may fail if Postgres cannot determine how to uniquely identify rows.** Please refer to the [Postgres docs](https://www.postgresql.org/docs/10/sql-alterpublication.html) if you need to add or remove tables from your publication in the future.
For each table you want to replicate with CDC, you should add the replication identity \(the method of distinguishing between rows\) first. We recommend using `ALTER TABLE tbl1 REPLICA IDENTITY DEFAULT;` to use primary keys to distinguish between rows. After setting the replication identity, you will need to run `CREATE PUBLICATION airbyte_publication FOR TABLE <tbl1, tbl2, tbl3>;`. This publication name is customizable. **You must add the replication identity before creating the publication. Otherwise, `ALTER`/`UPDATE`/`DELETE` statements may fail if Postgres cannot determine how to uniquely identify rows.** Please refer to the [Postgres docs](https://www.postgresql.org/docs/10/sql-alterpublication.html) if you need to add or remove tables from your publication in the future.

The UI currently allows selecting any tables for CDC. If a table is selected that is not part of the publication, it will not replicate even though it is selected. If a table is part of the publication but does not have a replication identity, that replication identity will be created automatically on the first run if the Airbyte user has the necessary permissions.

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