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Re: Use ctid in where clause in update from statement - Mailing list pgsql-general

From Achilleas Mantzios
Subject Re: Use ctid in where clause in update from statement
Date
Msg-id 73fbdc2d-36cc-a96a-5019-f7c78876ed8d@matrix.gatewaynet.com
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In response to Use ctid in where clause in update from statement  (Dirk Mika <Dirk.Mika@mikatiming.de>)
Responses Re: Use ctid in where clause in update from statement  (Dirk Mika <Dirk.Mika@mikatiming.de>)
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On 1/7/19 12:13 μ.μ., Dirk Mika wrote:

Hello,

 

I come from the Oracle world and am trying to convert some queries to PostgreSQL syntax. One of these queries is a MERGE statement, which I converted into an UPDATE SET FROM WHERE construct. In the original query I use the pseudo column ROWID to match a source row with a target row.

This is a simplified version of such a query:

 

Postgresql supports upserts : https://www.postgresql.org/docs/11/sql-insert.html "ON CONFLICT"

 

BR

Dirk

 

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Achilleas Mantzios
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IT DEPT
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