[SPARK-51521] Add integral/floating/string/date type test and answer files

[dongjoon-hyun]

What changes were proposed in this pull request?

This PR aims to add integral/floating/string/date type test and answer files.

Why are the changes needed?

To provide a test coverage for these types. During testings, it turns out decimal and timestamp type has some issues. It will be added.

Does this PR introduce any user-facing change?

No, this is a test-only change.

How was this patch tested?

Pass the CIs and manual tests.

$ swift test --filter SQLTests
...
􀟈  Suite SQLTests started.
􀟈  Test runAll() started.
date.sql
floating.sql
integral.sql
pipesyntax.sql
select.sql
string.sql
􁁛  Test runAll() passed after 0.191 seconds.
􁁛  Suite SQLTests passed after 0.191 seconds.
􁁛  Test run with 1 test passed after 0.191 seconds.

Was this patch authored or co-authored using generative AI tooling?

No.

[dongjoon-hyun]

It's great because you try Swift client. Thank you so much.

Could you review this when you have sometime, @grundprinzip ?

[dongjoon-hyun]

Could you review this when you have some time, @viirya ?

[dongjoon-hyun]

Thank you, @viirya . Merged to main.