* SQL Expressions: Add CASE/WHEN SQL nodes to allowlist
* Fixed and test for functions added in #102011
* Add remaining functions to the test-case
These are mostly aliases, so the LLM chose to omit them originally.
But adding now for completeness
* Fix ordering of allowed nodes
- use types.Convert to get a more normalized type returned from GMS. After syncing with GMS maintainers, the underlying type of the row could be different things (e.g. int when unit32, so this calls the Convert method from the GMS types library to normalize the interface.
- Clean up fieldValFromRow more
- Use IsText to capture different string types
- Add more types to test, also update test to use same cmp.Diff method as others
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Co-authored-by: Sam Jewell <2903904+samjewell@users.noreply.github.com>
* Under feature flag `sqlExpressions` and is experimental
* Excluded from arm32
* Will not work with the Query Service yet
* Does not have limits in place yet
* Does not working with alerting yet
* Currently requires "prepare time series" Transform for time series viz
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Co-authored-by: Sam Jewell <sam.jewell@grafana.com>
