SnowflakeIO: filter on db and schema when searching for existing table

[turb]

When searching if a table already exists, SnowflakeIO may wrongly find a table with the same name in another db/schema. So filter the search on it.

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[turb]

Hello @robertwb would it be possible to merge this one?

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[turb]

Rebased on master.

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[Abacn]

Thanks for the fix. Would it be possible to add a test case?

[turb]

Thanks for the fix. Would it be possible to add a test case?

Thanks!

That's not easy at all: this is linked to system table schema in Snowflake, so requires an integration test. Thing is, IT require a working GCP-run Snowflake, which I don't have access to.

Unfortunately, there is no real way to have tests running against, say, a docker-embedded Snowflake db.

[turb]

@Abacn is it a blocker?

I don't believe I can execute the IT. I may write a UT to check the query is the one expected, but it's not of great value I think.

[Abacn]

Thanks for the context