fix: fix non-null constraint

[JackTan25]

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Summary

Summary about this PR

1. for snowflake and postgres, it will return a non-null error when fill default value for non-null field.
2. in this pr, when we try to fill default expr for a non-null field, if its default expr is none, we will return the error

• Closes #issue
  bug: Not Null constraint is not consistent with postgres and snowflake #13932

---

This change is 

[github-actions]

Docker Image for PR

• tag: pr-13939-db9f7ae

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[sundy-li]

This change is correct, but it is breaking changes. It may cause errors for old scripts or sink processes (insert by other drivers).
cc @BohuTANG @wubx

[JackTan25]

when run script tests/suites/0_stateless/14_clickhouse_http_handler/14_0007_http_clickhouse_input_format_diagnostic.sh,we will
get a stack error, so the reason is below:

split_tx.send(Ok(Split {
    info: split_info,
    rx: data_rx,
}))
.await
.expect("fail to send split from stream"); // do expect here

let me remove the bad test added by me.

[github-actions]

Docker Image for PR

• tag: pr-13939-86bc7f7

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[JackTan25]

pass checksb in distributed mode and standalone mode without A12 and A13

[JackTan25]

for A12 and A13, we find out these in standalone and distributed mode.(snowflake will give an error in console, but in python script, it doesn't catch the error), these are expected.

-- MERGE-INTO-A12: transactions
MERGE INTO transactions USING (
    SELECT t.user_id, t.asset_type,
           SUM(t.quantity) AS total_quantity
    FROM transactions t
    GROUP BY t.user_id, t.asset_type
    UNION ALL
    SELECT t.user_id, 'NEW_TRANSACTION' AS asset_type,  -- New transaction type for insert
           30 AS quantity                                -- Example quantity
    FROM transactions t
    WHERE t.user_id % 2 = 0  -- Condition to select subset for new data
    GROUP BY t.user_id
) AS combined_transactions ON transactions.user_id = combined_transactions.user_id AND transactions.asset_type = combined_transactions.asset_type
    WHEN MATCHED THEN
        UPDATE SET transactions.quantity = combined_transactions.total_quantity
    WHEN NOT MATCHED THEN
        INSERT (user_id, transaction_type, asset_type, quantity, transaction_time)
            VALUES (combined_transactions.user_id, 'trade', combined_transactions.asset_type, combined_transactions.total_quantity, '2023-01-01') -D mergeinto
bendsql command failed: warning: --database is ignored when --dsn is set
Error: APIError: ResponseError with 1006: null value in column `transaction_id` violates not-null constraint

Traceback (most recent call last):
  File "/home/ubuntu/github/wizard2/checksb/checksb.py", line 66, in execute_sql
    result = subprocess.run(command, text=True, capture_output=True, check=True)
  File "/usr/lib/python3.10/subprocess.py", line 526, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['bendsql', "--query=\n\n-- MERGE-INTO-A12: transactions\nMERGE INTO transactions USING (\n    SELECT t.user_id, t.asset_type,\n           SUM(t.quantity) AS total_quantity\n    FROM transactions t\n    GROUP BY t.user_id, t.asset_type\n    UNION ALL\n    SELECT t.user_id, 'NEW_TRANSACTION' AS asset_type,  -- New transaction type for insert\n           30 AS quantity                                -- Example quantity\n    FROM transactions t\n    WHERE t.user_id % 2 = 0  -- Condition to select subset for new data\n    GROUP BY t.user_id\n) AS combined_transactions ON transactions.user_id = combined_transactions.user_id AND transactions.asset_type = combined_transactions.asset_type\n    WHEN MATCHED THEN\n        UPDATE SET transactions.quantity = combined_transactions.total_quantity\n    WHEN NOT MATCHED THEN\n        INSERT (user_id, transaction_type, asset_type, quantity, transaction_time)\n            VALUES (combined_transactions.user_id, 'trade', combined_transactions.asset_type, combined_transactions.total_quantity, '2023-01-01')", '-D', 'mergeinto']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/ubuntu/github/wizard2/checksb/checksb.py", line 165, in <module>
    main()
  File "/home/ubuntu/github/wizard2/checksb/checksb.py", line 151, in main
    execute_sql_scripts("bendsql", f"{base_sql_dir}/action.sql", database_name)
  File "/home/ubuntu/github/wizard2/checksb/checksb.py", line 83, in execute_sql_scripts
    execute_sql(query, sql_tool, database, warehouse)
  File "/home/ubuntu/github/wizard2/checksb/checksb.py", line 73, in execute_sql
    raise RuntimeError(error_message)
RuntimeError: bendsql command failed: warning: --database is ignored when --dsn is set
Error: APIError: ResponseError with 1006: null value in column `transaction_id` violates not-null constraint

[JackTan25]

cc @BohuTANG merge into wizard test is passed, can we merge this?

[BohuTANG]

This change is correct, but it is breaking changes. It may cause errors for old scripts or sink processes (insert by other drivers). cc @BohuTANG @wubx

Worth to do, we can highlight this in the changelog and our doc, tell the user to add the default value for the not null column if they are not defined before.

[BohuTANG]

A12/A13 need be fixed to make them works for Databend and Snowflake, I will do it this weekend. @JackTan25

[BohuTANG]

A12/A13 need be fixed to make them works for Databend and Snowflake, I will do it this weekend. @JackTan25

Fixed: databendlabs/wizard@9cd4d96