Support unparsing UNNEST plan for Snowflake dialect#9
Merged
goldmedal merged 3 commits intocanner/v49.0.1from Oct 29, 2025
Merged
Support unparsing UNNEST plan for Snowflake dialect#9goldmedal merged 3 commits intocanner/v49.0.1from
goldmedal merged 3 commits intocanner/v49.0.1from
Conversation
This file contains hidden or 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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Which issue does this PR close?
Rationale for this change
Snowflake doesn't support
UNNESTsyntax, but they use FLATTEN instead.FLATTENis a table function, and it has a different schema from the common unnest usage. We need to transform the unnest plan to fit their schema.What changes are included in this PR?
unparse_unnest_table_factorandrelation_alias_overridesfor unparsing unnest.SnowflakeDialect.Are these changes tested?
Are there any user-facing changes?