feat: specify isolation level per transaction #3704
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Add a `default_isolation_level` property for the Connection API. This property will be used by the JDBC driver and PGAdapter to set a default isolation level for all read/write transactions that are executed by a connection. Support for setting an isolation level for a single transaction will be added in a follow-up pull request.
Add an option to specify the isolation level for a single transaction. This isolation level overrides the current default isolation level that has been set for the connection. This option only has an effect for read/write transactions.
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olavloite
commented
Mar 25, 2025
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These statements have been moved up in this file to make sure that they are executed before the static block on line 151.
sakthivelmanii
approved these changes
Mar 28, 2025
Check if making a couple of test classes public fixes the weird native image build error.
svc-squareup-copybara
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to cashapp/misk
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Mar 31, 2025
| Package | Type | Package file | Manager | Update | Change | |---|---|---|---|---|---| | [com.google.cloud:google-cloud-spanner](https://github.com/googleapis/java-spanner) | dependencies | misk/gradle/libs.versions.toml | gradle | minor | `6.89.0` -> `6.90.0` | --- ### Release Notes <details> <summary>googleapis/java-spanner (com.google.cloud:google-cloud-spanner)</summary> ### [`v6.90.0`](https://github.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#6900-2025-03-31) ##### Features - Add default_isolation_level connection property ([#​3702](googleapis/java-spanner#3702)) ([9472d23](googleapis/java-spanner@9472d23)) - Adds support for Interval datatype in Java client ([#​3416](googleapis/java-spanner#3416)) ([8be8f5e](googleapis/java-spanner@8be8f5e)) - Integration test for End to End tracing ([#​3691](googleapis/java-spanner#3691)) ([bf1a07a](googleapis/java-spanner@bf1a07a)) - Specify isolation level per transaction ([#​3704](googleapis/java-spanner#3704)) ([868f30f](googleapis/java-spanner@868f30f)) - Support PostgreSQL isolation level statements ([#​3706](googleapis/java-spanner#3706)) ([dda2e1d](googleapis/java-spanner@dda2e1d)) </details> --- ### Configuration 📅 **Schedule**: Branch creation - "after 6pm every weekday,before 2am every weekday" in timezone Australia/Melbourne, Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Never, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). GitOrigin-RevId: a63885015974acb6061bae5ca3b9d61136991376
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Add an option to specify the isolation level for a single transaction. This isolation level overrides the current default isolation level that has been set for the connection. This option only has an effect for read/write transactions.