[Enhancement] Support the conversion from json to struct. #52790
+346
−10
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Outdated suggestions cannot be applied.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.
Why I'm doing:
In Trino, a json could be translate into row and array(row). Following sql could be executed:
TRY(CAST(json_parse("json") AS array(ROW(col1 timestamp(3), col2 array(varchar), col3 double, col4 varchar, col5 varchar))))
What I'm doing:
Supporting casting json to struct or array. After this patch, the sql above could be executed under trino dialect.
What type of PR is this:
Does this PR entail a change in behavior?
If yes, please specify the type of change:
Checklist:
Bugfix cherry-pick branch check: