fix: fix add column update bug

[lichuang]

I hereby agree to the terms of the CLA available at: https://databend.rs/dev/policies/cla/

Summary

1. fix: fix add column update bug
2. rename some miss used name from column idx to column index
3. unit test for this bug.

Closes #9938

[vercel]

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1 Ignored Deployment

Name	Status	Preview	Comments	Updated
databend	⬜️ Ignored (Inspect)			Feb 14, 2023 at 2:57PM (UTC)

[BohuTANG]

--- /workspace/tests/suites/0_stateless/17_altertable/17_0003_alter_table_update.result	2023-02-14 09:29:48.315995269 +0000
+++ /workspace/tests/suites/0_stateless/17_altertable/17_0003_alter_table_update.stdout	2023-02-14 09:34:58.534629243 +0000
@@ -1,9 +1,7 @@
 alter table add a column
 update table column
-ERROR 1105 (HY000) at line 1: Code: 1104, displayText = index out of bounds: the len is 2 but the index is 2.
 alter table drop a column
 update table column
-ERROR 1105 (HY000) at line 1: Code: 1104, displayText = index out of bounds: the len is 0 but the index is 0.
 alter table add a column
 update table column
 alter table drop a column

[zhyass]

LGTM