Partial refactoring of fragment context
Operator for test query run
Scan query exec path converted to use operators
Enabled only via a system property.
Scan query operator testing
Finish scan query op testing
Snapshot toward profiles
Query profile
Union query runner operators
Time series grouped agg operators
Query, fragment managers
Scatter/gather operator & profile
Result-level caching operator
Time series to-array operator
TImeSeries query engine