pub const INTERNAL_EVAL_OFFSET_KEY: &str = "__greptime_internal_eval_offset_secs";Expand description
Internal transient key used to pass the typed EVAL OFFSET (whole seconds)
from the operator to meta through CreateFlowExpr.flow_options. Inserted by
the operator only after user option validation; parsed and stripped by
CreateFlowTask::try_from. Must never be accepted as a user-provided option
and must never be persisted into FlowInfoValue.options or be visible in
user runtime options / SHOW CREATE.