SERVER-39705 IndexCatalogImpl::_unindexRecord() checks filter before calling IndexBuildInterceptor::sideWrite()

1 files changed, 10 insertions, 0 deletions

diff --git a/src/mongo/db/catalog/index_catalog_impl.cpp b/src/mongo/db/catalog/index_catalog_impl.cpp
index d87237fac72..8e0d65156f4 100644
--- a/src/mongo/db/catalog/index_catalog_impl.cpp
+++ b/src/mongo/db/catalog/index_catalog_impl.cpp
@@ -1319,6 +1319,16 @@ Status IndexCatalogImpl::_unindexRecord(OperationContext* opCtx,
     options.logIfError = logIfError;
 
     if (index->isHybridBuilding()) {
+        // The side table interface accepts only records that meet the criteria for this partial
+        // index.
+        // For non-hybrid builds, the decision to use the filter for the partial index is left to
+        // the IndexAccessMethod. See SERVER-28975 for details.
+        if (auto filter = index->getFilterExpression()) {
+            if (!filter->matchesBSON(obj)) {
+                return Status::OK();
+            }
+        }
+
         int64_t removed;
         auto status = index->indexBuildInterceptor()->sideWrite(opCtx,
                                                                 index->accessMethod(),