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DPL CCDB Analysis: add ability to specify run dependent queries #15757

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Merged
ktf merged 1 commit into from
Sep 4, 2026
+83 −54
Merged

DPL CCDB Analysis: add ability to specify run dependent queries #15757

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23 changes: 19 additions & 4 deletions Framework/CCDBSupport/src/AnalysisCCDBHelpers.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -42,8 +42,6 @@

O2_DECLARE_DYNAMIC_LOG(ccdb);



namespace o2::framework
{
// Fill valid routes. Notice that for analysis the timestamps are associated to
Expand Down Expand Up @@ -84,8 +82,13 @@ AlgorithmSpec AnalysisCCDBHelpers::fetchFromCCDB(ConfigContext const& /*ctx*/)
// device's options. Here we just read the final value — honouring any further
// runtime override supplied via CLI or JSON config.
std::unordered_map<std::string, std::string> ccdbUrls;
std::unordered_map<std::string, std::string> runDependent;
for (auto& input : dec.analysisCCDBInputs) {
for (auto& m : input.metadata) {
if (m.name.starts_with("ccdb-run-dependent:")) {
runDependent.emplace(m.name, m.defaultValue.asString());
continue;
}
if (!m.name.starts_with("ccdb:") || ccdbUrls.count(m.name)) {
continue;
}
Expand Down Expand Up @@ -120,6 +123,8 @@ AlgorithmSpec AnalysisCCDBHelpers::fetchFromCCDB(ConfigContext const& /*ctx*/)
auto fieldMetadata = std::make_shared<arrow::KeyValueMetadata>();
auto it = ccdbUrls.find(m.name);
fieldMetadata->Append("url", it != ccdbUrls.end() ? it->second : m.defaultValue.asString());
auto runDep = runDependent.find("ccdb-run-dependent:" + m.name.substr(strlen("ccdb:")));
fieldMetadata->Append("runDependent", runDep != runDependent.end() ? runDep->second : "0");
auto columnName = m.name.substr(strlen("ccdb:"));
fields.emplace_back(std::make_shared<arrow::Field>(columnName, soa::asArrowDataType<int64_t[3]>(), false, fieldMetadata));
}
Expand Down Expand Up @@ -280,12 +285,22 @@ AlgorithmSpec AnalysisCCDBHelpers::fetchFromCCDB(ConfigContext const& /*ctx*/)
for (auto& field : schema->fields()) {
auto const& url = pathTables[i][fi++].resolve(uniformityKey, field->name());
// Time to actually populate the blob
// A run-dependent object is queried with the run number rather than by
// timestamp alone. The run comes from the uniformity value, so the column's
// table has to be uniform in the run number for this to mean anything.
int const fieldRunDependent = field->metadata()->Contains("runDependent")
? std::stoi(*field->metadata()->Get("runDependent"))
: 0;
if (fieldRunDependent != 0 && uniformityColumnName != "fRunNumber") {
LOGP(fatal, R"(Column "{}" of {} is declared run-dependent, but its table is uniform in "{}" rather than fRunNumber, so no run number is available to query with. Declare the table with DECLARE_SOA_UNIFORM_TABLE(..., aod::BCs, o2::aod::bc::RunNumber, ...).)",
field->name(), outBinding, uniformityColumnName);
}
ops.push_back({
.spec = spec,
.url = url,
.timestamp = timestamp,
.runNumber = 1,
.runDependent = 0,
.runNumber = fieldRunDependent != 0 ? static_cast<int>(uniformityKey) : 1,
.runDependent = fieldRunDependent,
.queryRate = 0,
});
}
Expand Down
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