fix: alter table description without full_refresh

[kiwamizamurai]

resolves dbt-labs/dbt-adapters#585 docs dbt-labs/docs.getdbt.com/#

Problem

when materialization is incremental, table description does not be updated.

Solution

I implemented the method that alters the table description without table recreation.

Checklist

• [x] I have read the contributing guide and understand what's expected of me
• [x] I have run this code in development and it appears to resolve the stated issue
• [x] This PR includes tests, or tests are not required/relevant for this PR
• [x] This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX

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[kiwamizamurai]

@cla-bot cla has been signed

[kiwamizamurai]

@colin-rogers-dbt hello. this is my frist pr. please help me. is there anything else i should do?

[kiwamizamurai]

@emmyoop could you help me?

[kiwamizamurai]

Changelog file might be required?

[dataders]

see https://github.com/dbt-labs/dbt-bigquery/issues/1138#issuecomment-2018762523

[kiwamizamurai]

@dataders

Could you review my PR? I have verified in my local environment with the same step.

• https://github.com/dbt-labs/dbt-bigquery/issues/1138#issue-2185777477

[martinazapletalova]

Hi @kiwamizamurai any updates on this PR?

[kiwamizamurai]

@colin-rogers-dbt @dataders could you review this pr?