Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

feat: support read_only connections #125

Merged
merged 4 commits into from Oct 11, 2021
Merged

feat: support read_only connections #125

merged 4 commits into from Oct 11, 2021

Conversation

IlyaFaer
Copy link
Contributor

@IlyaFaer IlyaFaer commented Oct 6, 2021

The PR adds support of read_only connections (which are using read_only transactions).

How to use:

with self._engine.connect().execution_options(read_only=True) as connection:
    connection.execute(select(["*"], from_obj=table)).fetchall()

Execution options are applied to the underlying DB API connection lazily - on the next execute() method call, right before it.

Closes #97

@IlyaFaer IlyaFaer added the type: feature request ‘Nice-to-have’ improvement, new feature or different behavior or design. label Oct 6, 2021
@google-cla google-cla bot added the cla: yes This human has signed the Contributor License Agreement. label Oct 6, 2021
@product-auto-label product-auto-label bot added the api: spanner Issues related to the googleapis/python-spanner-sqlalchemy API. label Oct 6, 2021
@IlyaFaer IlyaFaer marked this pull request as ready for review October 6, 2021 09:56
Copy link
Contributor

@larkee larkee left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM 👍

@IlyaFaer IlyaFaer merged commit 352c47d into main Oct 11, 2021
@IlyaFaer IlyaFaer deleted the read_only_connection branch October 11, 2021 11:56
gcf-merge-on-green bot pushed a commit that referenced this pull request Dec 9, 2021
🤖 I have created a release \*beep\* \*boop\*
---
## [1.0.0](https://www.github.com/googleapis/python-spanner-sqlalchemy/compare/v0.1.0...v1.0.0) (2021-12-08)


### Features

* add code samples ([#55](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/55)) ([406c34b](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/406c34bdb21e01a1317c074fab34d87bb3d61020))
* set user-agent string to distinguish SQLAlchemy requests ([#116](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/116)) ([b5e1a21](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/b5e1a211a0475690feed36fd222a41c216d8fb82))
* support computed columns ([#139](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/139)) ([046ca97](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/046ca975778f4793e2c37d70d2a602546f9d4699)), closes [#137](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/137)
* support JSON data type ([#135](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/135)) ([184a7d5](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/184a7d576a790bbbd049fe80d589af78831379b4))
* support read_only connections ([#125](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/125)) ([352c47d](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/352c47de7bb4ea1c30b50a7fe5aee0c4d102e80e))
* support stale reads ([#146](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/146)) ([d80cb27](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/d80cb2792437731c24905c7a6919468c37779c67))


### Bug Fixes

* ALTER COLUMN NOT NULL directive fails because of inappropriate syntax ([#124](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/124)) ([c433cda](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/c433cda99fd8544810c878328a272a3a9430630f))
* array columns reflection ([#119](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/119)) ([af3b97b](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/af3b97bfa4b3ed4b223384c9ed3fa0643204d8c9)), closes [#118](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/118)
* calculate limit value correctly for offset only queries ([#160](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/160)) ([6844336](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/684433682ed29d9cde8c9898796024cefeb38493))
* correct typo in spanner_interleave_on_delete_cascade keyword ([#99](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/99)) ([a0ebf75](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/a0ebf758eda351c0a20103f9e8c2243f002b2e6e))
* raise Unimplemented error when creating temporary tables ([#159](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/159)) ([646d6ac](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/646d6ac24ccd0643b67abff9da28118e0a6f6e55))
* rollback failed exception log ([#106](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/106)) ([809e6ab](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/809e6abb29f82a7fbe6587d606e8d75283f2a2fe))


### Documentation

* add query hints example ([#153](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/153)) ([9c23804](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/9c23804746bc8c638b6c22f2cb6ea57778f7fd19))
* reformatted README titles ([#141](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/141)) ([a3ccbac](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/a3ccbac476679fe8048ed2109e5489b873278c9c))
* update benchmarks ([#155](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/155)) ([3500653](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/35006536e4de31dbcba022b73f0aadf39bc89e39))


### Miscellaneous Chores

* setup release 1.0.0 ([#165](https://www.github.com/googleapis/python-spanner-sqlalchemy/issues/165)) ([37a415d](https://www.github.com/googleapis/python-spanner-sqlalchemy/commit/37a415d071d39e99f233a1c15c1c4b89bd436570))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
api: spanner Issues related to the googleapis/python-spanner-sqlalchemy API. cla: yes This human has signed the Contributor License Agreement. type: feature request ‘Nice-to-have’ improvement, new feature or different behavior or design.
Projects
None yet
Development

Successfully merging this pull request may close these issues.

How to use readonly transaction
2 participants