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docs: the rc.22 notes say contract infer writes the convenience date types, and the MySQL READMEs say MySQL reads - #30924
In 8.0.0-rc.22, prisma contract infer writes a PostgreSQL timestamptz column differently:
// before 8.0.0-rc.22: an ISO 8601 string, every digit kept
createdAt TimestamptzString @default(now())// 8.0.0-rc.22: a JavaScript Date, milliseconds only
createdAt DateTime(precision: 6) @default(now())
The rc.22 release notes did not say so. Someone who infers a contract again gets a field that reads a Date instead of a string, and loses microseconds, with no warning in the notes. This PR adds that to the first breaking change in docs/releases/v8.0.0-rc.22.md and the matching CHANGELOG.md entry. It lists what each date and time column is inferred as, and says as: string keeps the string. The source for each mapping is packages/3-targets/postgres/1-target/test/psl-infer/infer-column-types.test.ts.
The published GitHub Release for v8.0.0-rc.22 gets the same text.
It also corrects two package READMEs that 8.0.0-rc.22 made wrong. @prisma/orm-mysql said its query client had "not landed yet", and @prisma/orm-target-mysql said it carried the control plane only. Since #30863 and #30893, mysql({ contract, url }) reads through the ORM and the SQL builder, runs raw SQL and transactions, and refuses writes through the ORM or SQL builder. Both READMEs now say that, and list the /runtime and /static entrypoints.
Review found one more error, in the notes and in my READMEs. The rc.22 notes said the MySQL drivers send every value as a server-side prepared-statement parameter. That was true after #30893, but #30918 also shipped in rc.22: the driver now hands each statement to the mariadb package, which writes the values into the statement with its own escaping, in one round trip. The notes, CHANGELOG.md and both READMEs now say that. The docs site had the same sentence; prisma/web#8672 fixes it.
Clarified how PostgreSQL date and time types map to convenience types, including timestamptz reads as JavaScript Date values and how to preserve string reads and microsecond precision.
Documented MySQL runtime reads through ORM, SQL-builder, raw SQL, and transactions. Values are escaped into statements, with one round trip per statement.
Clarified MySQL limitations, including unsupported row writes, row locks, and LATERAL joins, and documented runtime entrypoints and session settings.
…types, and the MySQL READMEs say MySQL reads
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: willbot <w.a.madden+machine@gmail.com>
Signed-off-by: Will Madden <madden@prisma.io>
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Walkthrough
The changelog and release notes document PostgreSQL date/time inference and read behavior. The MySQL documentation describes runtime read capabilities, value escaping, limitations, and entrypoints.
The changelog and release notes list date/time types emitted by contract infer and contract print. They describe timestamptz reads as JavaScript Date values that lose microseconds, and note that as: string with precision 6 preserves string reads and microsecond precision.
MySQL runtime documentation
Layer / File(s)
Summary
Document runtime support and entrypoints packages/9-public/@prisma/orm-mysql/README.md, packages/9-public/@prisma/orm-target-mysql/README.md, CHANGELOG.md, docs/releases/v8.0.0-rc.22.md
The READMEs describe MySQL runtime reads, statement values escaped by mariadb, unsupported operations, session settings, and runtime entrypoints. The changelog and release notes state that each statement uses one round trip.
The documentation correction has no identified merge-blocking risk. Merge after the normal documentation checks.
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The title clearly identifies the documentation updates for PostgreSQL convenience date types and MySQL read support. It is specific and related to the main changes.
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Review comments at @packages/9-public/@prisma/orm-mysql/README.md:
- Line 17: Update the MySQL README claim about prepared statements to describe
the actual client-side value-writing behavior used by `mysql-driver.ts` and
`statementFor()`, rather than claiming values are sent as server-side
prepared-statement parameters. Apply the same wording correction to the
corresponding statement in the `orm-target-mysql` README.
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…y are not prepared-statement parameters since #30918
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: willbot <w.a.madden+machine@gmail.com>
Signed-off-by: Will Madden <madden@prisma.io>
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In 8.0.0-rc.22,
prisma contract inferwrites a PostgreSQLtimestamptzcolumn differently:The rc.22 release notes did not say so. Someone who infers a contract again gets a field that reads a
Dateinstead of a string, and loses microseconds, with no warning in the notes. This PR adds that to the first breaking change indocs/releases/v8.0.0-rc.22.mdand the matchingCHANGELOG.mdentry. It lists what each date and time column is inferred as, and saysas: stringkeeps the string. The source for each mapping ispackages/3-targets/postgres/1-target/test/psl-infer/infer-column-types.test.ts.The published GitHub Release for
v8.0.0-rc.22gets the same text.It also corrects two package READMEs that 8.0.0-rc.22 made wrong.
@prisma/orm-mysqlsaid its query client had "not landed yet", and@prisma/orm-target-mysqlsaid it carried the control plane only. Since #30863 and #30893,mysql({ contract, url })reads through the ORM and the SQL builder, runs raw SQL and transactions, and refuses writes through the ORM or SQL builder. Both READMEs now say that, and list the/runtimeand/staticentrypoints.Review found one more error, in the notes and in my READMEs. The rc.22 notes said the MySQL drivers send every value as a server-side prepared-statement parameter. That was true after #30893, but #30918 also shipped in rc.22: the driver now hands each statement to the
mariadbpackage, which writes the values into the statement with its own escaping, in one round trip. The notes,CHANGELOG.mdand both READMEs now say that. The docs site had the same sentence; prisma/web#8672 fixes it.Docs only.
check:release-notes --mode prpasses.Agent: paddington-54
🤖 Generated with Claude Code
Summary by CodeRabbit
timestamptzreads as JavaScriptDatevalues and how to preserve string reads and microsecond precision.LATERALjoins, and documented runtime entrypoints and session settings.