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PG 18 relnotes: adjust RETURNING new/old item

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Reported-by: jian he

Discussion: https://postgr.es/m/CACJufxFM1avdwu=OrTx_uMAjTDbFOj1Gp7mnNHOofTVj9QtmRw@mail.gmail.com
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Bruce Momjian
2025-05-08 11:11:08 -04:00
parent 8fcc648780
commit 9d710a1ac0
1 changed files with 3 additions and 3 deletions
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doc/src/sgml/release-18.sgml
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@ -1432,9 +1432,9 @@ Add OLD/NEW support to RETURNING in DML queries (Dean Rasheed)
</para>
<para>
Previously RETURNING only returned new values for INSERT and UPDATE, old values for DELETE; MERGE would return the appropriate value for the internal query executed. This new syntax
allows INSERT with an ON CONFLICT action to return old values, UPDATE to return old values, and DELETE to return new values if the query assigned to an ON DELETE row would return new
values. New syntax allows changeable relation aliases "old" and "new" to specify which values should be returned.
Previously RETURNING only returned new values for INSERT and UPDATE, and old values for DELETE; MERGE would return the appropriate value for the internal query executed. This new syntax
allows the RETURNING list of INSERT/UPDATE/DELETE/MERGE to explicitly return old and new values by using the special aliases "old" and "new". These aliases can be renamed to
avoid identifier conflicts.
</para>
</listitem>