build(deps): bump @prisma/generator-helper from 3.7.0 to 4.4.0 in /packages/generator

[dependabot]

Bumps @prisma/generator-helper from 3.7.0 to 4.4.0.

Release notes

Sourced from @​prisma/generator-helper's releases.

4.4.0

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Major improvements

General improvements

In the last sprint, we focused our efforts on squashing as many bugs as we could. You can find the full list of improvements and bug fixes in the Fixes and improvements section below.

Some of the improvements we made include but are not limited to:

• Improved optimistic concurrency control (GitHub issue)
• Improved decimal precision
• Improved handling of big amounts of prepared statement placeholders: Databases impose limits when they hit a specific number, and when a query (either generated by Prisma Client or provided by the user directly as a raw query) hits it some users ran into a misleading Can't reach database server error message (GitHub issue). The error message will now be more useful (P2035 error code), and Prisma Client should not cause these errors anymore.

If you notice any regression, please make sure to create a GitHub issue. We touched a lot of code in this sprint, and even though we are confident in our tests, something might have slipped through the cracks. We'd like to fix the regressions as soon as possible.

isolationLevel for sequential transaction operations

In version 4.2.0, we added support for setting transaction isolation levels for interactive transactions (Preview). You can now define isolation levels for sequential transaction operations: prisma.$transaction([]).

Isolation levels describe different types of trade-offs between isolation and performance that databases can make when processing transactions. Isolation levels determine what types of data leaking can occur between transactions or what data anomalies can occur. To set the transaction isolation level, use the isolationLevel option in the second parameter of the API. For example:

await prisma.$transaction(
  [
    // sequential operations
    prisma.user.create({ data: {/** args */ } }),
    prisma.post.create({ data: {/** args  */ } })
  ],
  {
    isolationLevel: Prisma.TransactionIsolationLevel.Serializable
  }
)

Prisma Client supports the following isolation levels if they're available in your database provider:

• ReadCommitted
• ReadUncommitted
• RepeatableRead
• Serializable
• Snapshot

Learn more about it in our documentation.

New P2034 error code for transaction conflicts or deadlocks

When using certain isolation levels, it is expected that a transaction can fail due to a write conflict or a deadlock, throwing an error. One way to solve these cases is by retrying the transaction.

... (truncated)

Commits

• 7d444fa chore(deps): update devdependencies (non-major)
• 4a1d4d5 chore(deps): update devdependencies (non-major)
• e2947f9 chore(deps): update devdependencies (non-major) (#15219)
• 577d4aa chore(deps): update devdependencies (non-major)
• df76a77 fix(client): typescript 4.8 (#15072)
• aafcb5f chore(deps): update jest
• 83100ad feat(client): Integrate field references (#14982)
• c511811 chore: add a description for npm for all packages. (#15026)
• 8643fa0 test: try reduce flaky tests in CI (#14996)
• 0374003 chore(deps): update devdependencies (non-major) (#14965)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #91.