[SPARK-51468][SQL] Revert "From json/xml should not change collations in the given schema" #50234
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@MaxGekk can you take a look? |
MaxGekk
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Mar 11, 2025
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+1, LGTM. Merging to master/4.0. |
MaxGekk
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Mar 11, 2025
… in the given schema" ### What changes were proposed in this pull request? After removing session-level collation (#49772) we can also revert the PR that changed the behavior of `from_json` and `from_xml` expressions to use json and not sql type representation under the hood (#48750). ### Why are the changes needed? Now that we don't have correctness problems with session level collation, using `sql` instead of `json` will lead to smaller and more efficient type representation. ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? Existing unit tests. ### Was this patch authored or co-authored using generative AI tooling? No. Closes #50234 from stefankandic/revertFromJsonChange. Authored-by: Stefan Kandic <stefan.kandic@databricks.com> Signed-off-by: Max Gekk <max.gekk@gmail.com> (cherry picked from commit 0094f44) Signed-off-by: Max Gekk <max.gekk@gmail.com>
anoopj
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Mar 15, 2025
… in the given schema" ### What changes were proposed in this pull request? After removing session-level collation (apache#49772) we can also revert the PR that changed the behavior of `from_json` and `from_xml` expressions to use json and not sql type representation under the hood (apache#48750). ### Why are the changes needed? Now that we don't have correctness problems with session level collation, using `sql` instead of `json` will lead to smaller and more efficient type representation. ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? Existing unit tests. ### Was this patch authored or co-authored using generative AI tooling? No. Closes apache#50234 from stefankandic/revertFromJsonChange. Authored-by: Stefan Kandic <stefan.kandic@databricks.com> Signed-off-by: Max Gekk <max.gekk@gmail.com>
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What changes were proposed in this pull request?
After removing session-level collation (#49772) we can also revert the PR that changed the behavior of
from_jsonandfrom_xmlexpressions to use json and not sql type representation under the hood (#48750).Why are the changes needed?
Now that we don't have correctness problems with session level collation, using
sqlinstead ofjsonwill lead to smaller and more efficient type representation.Does this PR introduce any user-facing change?
No.
How was this patch tested?
Existing unit tests.
Was this patch authored or co-authored using generative AI tooling?
No.