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Posted to issues@spark.apache.org by "Daniel (Jira)" <ji...@apache.org> on 2022/10/27 22:33:00 UTC

[jira] [Created] (SPARK-40944) Relax ordering constraint for CREATE TABLE column options

Daniel created SPARK-40944:
------------------------------

             Summary: Relax ordering constraint for CREATE TABLE column options
                 Key: SPARK-40944
                 URL: https://issues.apache.org/jira/browse/SPARK-40944
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.4.0
            Reporter: Daniel


Currently the grammar for each CREATE TABLE column is:

```
createOrReplaceTableColType
    : colName=errorCapturingIdentifier dataType (NOT NULL)? defaultExpression? commentSpec?
    ;
```

This enforces a constraint on the order of: `(NOT NULL, DEFAULT value, COMMENT value)`. We can update the grammar to allow these options in any order instead, to improve usability.



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