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Posted to reviews@spark.apache.org by "ilicmarkodb (via GitHub)" <gi...@apache.org> on 2026/02/16 21:59:59 UTC
[PR] [SPARK-55372][SQL] Fix SHOW CREATE TABLE for tables / views with default collation [spark]
ilicmarkodb opened a new pull request, #54340:
URL: https://github.com/apache/spark/pull/54340
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### What changes were proposed in this pull request?
Fixed `SHOW CREATE TABLE` for tables / views to correctly print `DEFAULT COLLATION collationName`.
For example: `CREATE TABLE t (c1 STRING) DEFAULT COLLATION UTF8_LCASE`. Previously, it was printing `COLLATE 'UTF8_LCASE'`, which produces a parsing error.
For `UTF8_BINARY` collated / non collated columns (for example, `c1`), the output of `SHOW CREATE TABLE` should print `c1 STRING COLLATE UTF8_BINARY`, so that we don’t inherit the collation from the table or schema, if defined.
To achieve this, I changed `typeName` in `StringType` to print `COLLATE UTF8_BINARY` for explicitly collated `UTF8_BINARY` columns. For non-collated `StringType` (case object), `typeName` does not print `COLLATE UTF8_BINARY`, which matches the old behaviour.
### Why are the changes needed?
Bug fix.
### Does this PR introduce _any_ user-facing change?
Yes, corrects `SHOW CREATE TABLE` command.
### How was this patch tested?
`show-create-table.sql` golden file.
### Was this patch authored or co-authored using generative AI tooling?
No.
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Re: [PR] [SPARK-55372][4.1][SQL] Fix `SHOW CREATE TABLE` for tables / views with default collation [spark]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #54340:
URL: https://github.com/apache/spark/pull/54340#issuecomment-4569576760
We're closing this PR because it hasn't been updated in a while. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
If you'd like to revive this PR, please reopen it and ask a committer to remove the Stale tag!
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Re: [PR] [SPARK-55372][4.1][SQL] Fix `SHOW CREATE TABLE` for tables / views with default collation [spark]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] closed pull request #54340: [SPARK-55372][4.1][SQL] Fix `SHOW CREATE TABLE` for tables / views with default collation
URL: https://github.com/apache/spark/pull/54340
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