* feat: let TypeConversionRule aware query context timezone setting
* chore: don't optimize explain command
* feat: parse string into timestamp with timezone
* fix: compile error
* chore: check the scalar value type in predicate
* chore: remove mut for engine context
* chore: return none if the scalar value is utf8 in time range predicate
* fix: some fixme
* feat: let Date and DateTime parsing from string value be aware of timezone
* chore: tweak
* test: add datetime from_str test with timezone
* feat: construct function context from query context
* test: add timezone test for to_unixtime and date_format function
* fix: typo
* chore: apply suggestion
* test: adds string with timezone
* chore: apply CR suggestion
Co-authored-by: Lei, HUANG <6406592+v0y4g3r@users.noreply.github.com>
* chore: apply suggestion
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Co-authored-by: Lei, HUANG <6406592+v0y4g3r@users.noreply.github.com>