-
Notifications
You must be signed in to change notification settings - Fork 92
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
Move node dataset resolver subquery ids into a separate namespace #1280
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This was referenced Jun 14, 2024
Thank you for your pull request! We could not find a changelog entry for this change. For details on how to document a change, see the contributing guide. |
courtneyholcomb
approved these changes
Jun 15, 2024
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Helpful thank you!
fda9d9b
to
cd70c5d
Compare
90caf50
to
4459fb6
Compare
This was referenced Jun 25, 2024
cd70c5d
to
6b94906
Compare
The DataflowPlanNodeOutputDataSetResolver class extends the DataflowToSqlQueryPlanConverter class. As a result, both classes effectively do a full conversion from a DataflowPlan to a SqlQueryPlan, complete with SqlQueryPlan node_id generation. These shared the same ID prefix, which meant any call that might trigger an additional invocation of the node dataset resolver subclass could cause shifts in the subquery IDs in our SqlQueryPlan outputs even if the invocation had no material impact on the query in question. In order to reduce snapshot thrash and make our subquery IDs easier to reason about on read-through of the generated SQL, this change splits the node dataset resolver ID prefix into a dedicated value.
4459fb6
to
5d4109c
Compare
This was referenced Jun 25, 2024
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Move node dataset resolver subquery ids into a separate namespace
The DataflowPlanNodeOutputDataSetResolver class extends the
DataflowToSqlQueryPlanConverter class. As a result, both classes
effectively do a full conversion from a DataflowPlan to a SqlQueryPlan,
complete with SqlQueryPlan node_id generation. These shared the
same ID prefix, which meant any call that might trigger an additional
invocation of the node dataset resolver subclass could cause shifts
in the subquery IDs in our SqlQueryPlan outputs even if the invocation
had no material impact on the query in question.
In order to reduce snapshot thrash and make our subquery IDs easier to
reason about on read-through of the generated SQL, this change splits
the node dataset resolver ID prefix into a dedicated value.
Update engine snapshots