[cdc] Introduce time_format computed column to support formatting epoch time #2985
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Purpose
Tests
API and Format
In CDC:
--computed_column 'col=time_format(epoch_col, yyyy-MM-dd HH:mm:ss.SSS, [time-unit])'
time-unit:
second (default), millis, micros, nanos
Documentation
CDC Ingestion -> Overview -> Computed Functions