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8 changes: 4 additions & 4 deletions .claude/commands/migrate-ccdb.md
Original file line number Diff line number Diff line change
Expand Up @@ -195,10 +195,10 @@ pre-existing behaviour — every distinct timestamp may yield a different object

Pick it from the object's real validity, and only then:

| Object changes ... | Uniformity | Declare with |
| --- | --- | --- |
| within a run (calibrations, drift velocity) | timestamp (default) | `DECLARE_SOA_TIMESTAMPED_TABLE` |
| per run or per period (geometry, material, per-period calibrations) | `aod::BCs` / `aod::bc::RunNumber` | `DECLARE_SOA_UNIFORM_TABLE` |
| Object changes ... | Uniformity | Declare with |
|---------------------------------------------------------------------|-----------------------------------|---------------------------------|
| within a run (calibrations, drift velocity) | timestamp (default) | `DECLARE_SOA_TIMESTAMPED_TABLE` |
| per run or per period (geometry, material, per-period calibrations) | `aod::BCs` / `aod::bc::RunNumber` | `DECLARE_SOA_UNIFORM_TABLE` |

Worked examples in the tree: `aod::TpcCalibCCDBObjects` keeps the timestamp default because
the TPC drift velocity genuinely varies within a run; `aod::GeomCCDBObjects` and
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