prisma / prisma/orm

Return affected rows from `deleteMany()` operation

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#13,596 5 comments 33 reactions 0 assignees View on GitHub

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kind/feature topic: client api topic: deleteMany() topic: RETURNING
Dominant language
TypeScript
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Forks
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Avg merge
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Description

Problem

It is suggested that deleteMany can return the deleted column

Suggested solution

const user = await client.user.deleteMany({ where: { id: { in: params.id } } })

Generated query

DELETE FROM "user" WHERE "id"in(1,2) RETURNING *

Alternatives

For some tables, I need to delete some corresponding files by returning the deleted columns, and now I can only write SQL by queryRaw

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at the deleteMany operation in the TypeScript client and its generated SQL path; compare the proposed DELETE ... RETURNING * behavior with the existing queryRaw workaround. Done means deleteMany exposes the deleted rows or columns for the supported database cases, with the behavior covered by tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
sql, typescript
Domain
api, backend-api-design, database
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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