[SPARK-35895][SQL] Support subtracting Intervals from TimestampWithoutTZ #33086
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What changes were proposed in this pull request?
Support the following operation:
The following operation is actually supported in #33076. This PR is to add end-to-end tests for them:
Why are the changes needed?
Support subtracting all 3 interval types from a timestamp without time zone
Does this PR introduce any user-facing change?
No, the timestamp without time zone type is not release yet.
How was this patch tested?
Unit tests