fix(expr): cast untyped start and step when inferring type for generate_series

[stdrc]

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What's changed and what's your intention?

Fix #18729.

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[stdrc]

• fix(expr): cast untyped start and step when inferring type for generate_series #18786 👈
• fix(batch): fix distributed batch query not properly throwing errors to PG client #18812
• main

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[kwannoel]

Thanks!

[kwannoel]

Can you add a batch plan test as well?

[stdrc]

Can you add a batch plan test as well?

In batch, we won't throw error until the query is executed by backend. So we can't test it in planner test.🤪

[kwannoel]

Can you add a batch plan test as well?

In batch, we won't throw error until the query is executed by backend. So we can't test it in planner test.🤪

An slt test would be good then, to make sure the type checking behaviour is consistent between batch and streaming.

Won't block this PR on it.

[stdrc]

newly-added e2e test failed because of a weird bug: #18790