sabir-akhadov-localstack opened a new pull request, #2639:
URL: https://github.com/apache/datafusion-sqlparser-rs/pull/2639

   Snowflake supports `IF NOT EXISTS` on `ALTER TABLE ... ADD [COLUMN]` 
([docs](https://docs.snowflake.com/en/sql-reference/sql/alter-table)), but this 
failed to parse with `SnowflakeDialect`:
   
   ```sql
   ALTER TABLE tab ADD COLUMN IF NOT EXISTS c TEXT
   ```
   
   The check was a hardcoded `dialect_of!(PostgreSql | BigQuery | DuckDb | 
Generic)`. This replaces it with a new 
`Dialect::supports_add_column_if_not_exists()` method, enables it for those 
dialects plus Snowflake, and switches the existing common test to 
`all_dialects_where`.
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]


---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to