SERVER-67659 Remove partial, TTL index check on time-series collections once FCV 7.0 becomes last-lts

1 files changed, 0 insertions, 73 deletions

diff --git a/src/mongo/db/commands/set_feature_compatibility_version_command.cpp b/src/mongo/db/commands/set_feature_compatibility_version_command.cpp
index ac1ac795b40..dd613e55d72 100644
--- a/src/mongo/db/commands/set_feature_compatibility_version_command.cpp
+++ b/src/mongo/db/commands/set_feature_compatibility_version_command.cpp
@@ -1071,79 +1071,6 @@ private:
                         !hasShardingIndexCatalogEntries);
             }
         }
-
-        if (serverGlobalParams.clusterRole.has(ClusterRole::ShardServer) ||
-            serverGlobalParams.clusterRole.has(ClusterRole::None)) {
-            if (feature_flags::gTimeseriesScalabilityImprovements
-                    .isDisabledOnTargetFCVButEnabledOnOriginalFCV(requestedVersion,
-                                                                  originalVersion)) {
-                for (const auto& dbName : DatabaseHolder::get(opCtx)->getNames()) {
-                    Lock::DBLock dbLock(opCtx, dbName, MODE_IX);
-                    catalog::forEachCollectionFromDb(
-                        opCtx,
-                        dbName,
-                        MODE_S,
-                        [&](const Collection* collection) {
-                            auto tsOptions = collection->getTimeseriesOptions();
-                            invariant(tsOptions);
-
-                            auto indexCatalog = collection->getIndexCatalog();
-                            auto indexIt = indexCatalog->getIndexIterator(
-                                opCtx,
-                                IndexCatalog::InclusionPolicy::kReady |
-                                    IndexCatalog::InclusionPolicy::kUnfinished);
-
-                            // Check and fail to downgrade if the time-series collection has a
-                            // partial, TTL index.
-                            while (indexIt->more()) {
-                                auto indexEntry = indexIt->next();
-                                if (indexEntry->descriptor()->isPartial()) {
-                                    // TODO (SERVER-67659): Remove partial, TTL index check once
-                                    // FCV 7.0 becomes last-lts.
-                                    uassert(
-                                        ErrorCodes::CannotDowngrade,
-                                        str::stream()
-                                            << "Cannot downgrade the cluster when there are "
-                                               "secondary "
-                                               "TTL indexes with partial filters on time-series "
-                                               "collections. Drop all partial, TTL indexes on "
-                                               "time-series collections before downgrading. First "
-                                               "detected incompatible index name: '"
-                                            << indexEntry->descriptor()->indexName()
-                                            << "' on collection: '"
-                                            << collection->ns()
-                                                   .getTimeseriesViewNamespace()
-                                                   .toStringForErrorMsg()
-                                            << "'",
-                                        !indexEntry->descriptor()->infoObj().hasField(
-                                            IndexDescriptor::kExpireAfterSecondsFieldName));
-                                }
-                            }
-
-                            // Check the time-series options for a default granularity. Fail the
-                            // downgrade if the bucketing parameters are custom values.
-                            uassert(
-                                ErrorCodes::CannotDowngrade,
-                                str::stream()
-                                    << "Cannot downgrade the cluster when there are time-series "
-                                       "collections with custom bucketing parameters. In order to "
-                                       "downgrade, the time-series collection(s) must be updated "
-                                       "with a granularity of 'seconds', 'minutes' or 'hours'. "
-                                       "First detected incompatible collection: '"
-                                    << collection->ns()
-                                           .getTimeseriesViewNamespace()
-                                           .toStringForErrorMsg()
-                                    << "'",
-                                tsOptions->getGranularity().has_value());
-
-                            return true;
-                        },
-                        [&](const Collection* collection) {
-                            return collection->getTimeseriesOptions() != boost::none;
-                        });
-                }
-            }
-        }
     }
 
     // Remove cluster parameters from the clusterParameters collections which are not enabled on