porsager / porsager/postgres

Dynamic updates with table aliases

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Dominant language
JavaScript
Stars
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Forks
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Avg merge
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Merged PRs (30d)
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Description

await sql`
  UPDATE foo AS f
  SET ${sql({ bar: sql`now()` }, ["bar"])}
`;

expected;

update foo as f
set bar = now()

actual:

update foo as f
set now() as "bar"

Removing the alias does the trick.

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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 by running the supplied TypeScript SQL-template reproduction with a table alias and compare its generated SQL with the expected and actual examples. Done means the aliased update generates set bar = now() rather than set now() as "bar", while the alias-free case continues to work.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, postgresql
Domain
databases
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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