concept

CH column metadata: esios.unit_physical_flat.missing_streak

Number of consecutive daily refreshes where the UF didn't appear in archive 81. `99` = deregistered ghost unit (sourced from legacy operational_data, never present in current ESIOS). 0 = current.

# `esios.unit_physical_flat.missing_streak` Number of consecutive daily refreshes where the UF didn't appear in archive 81. `99` = deregistered ghost unit (sourced from legacy operational_data, never present in current ESIOS). 0 = current. - **category**: quality_flag - **common_pitfalls**: - ghost rows with missing_streak=99 are valid history rows from before deregistration