fix indexes usage (#12933)

4 files changed, 47 insertions, 2 deletions

diff --git a/ydb/core/tx/columnshard/columnshard_schema.h b/ydb/core/tx/columnshard/columnshard_schema.h
index 646a4409d7..1837c16501 100644
--- a/ydb/core/tx/columnshard/columnshard_schema.h
+++ b/ydb/core/tx/columnshard/columnshard_schema.h
@@ -1122,6 +1122,15 @@ public:
         return TIndexChunk(Address.GetColumnId(), Address.GetChunkIdx(), RecordsCount, RawBytes, *BlobData);
     }
 
+    TIndexChunk BuildIndexChunk(const TPortionInfo& portionInfo) const {
+        if (BlobData) {
+            return BuildIndexChunk();
+        } else {
+            AFL_VERIFY(!!BlobRange);
+            return BuildIndexChunk(portionInfo.GetMeta().GetBlobIdxVerified(BlobRange->BlobId));
+        }
+    }
+
     template <class TSource>
     TIndexChunkLoadContext(const TSource& rowset, const IBlobGroupSelector* dsGroupSelector)
         : PathId(rowset.template GetValue<NColumnShard::Schema::IndexIndexes::PathId>())
diff --git a/ydb/core/tx/columnshard/engines/portions/constructor_accessor.cpp b/ydb/core/tx/columnshard/engines/portions/constructor_accessor.cpp
index 380778476f..b3d6b778f1 100644
--- a/ydb/core/tx/columnshard/engines/portions/constructor_accessor.cpp
+++ b/ydb/core/tx/columnshard/engines/portions/constructor_accessor.cpp
@@ -121,7 +121,7 @@ void TPortionAccessorConstructor::LoadRecord(TColumnChunkLoadContextV1&& loadCon
 
 void TPortionAccessorConstructor::LoadIndex(TIndexChunkLoadContext&& loadContext) {
     if (loadContext.GetBlobRange()) {
-        const TBlobRangeLink16::TLinkId linkBlobId = RegisterBlobId(loadContext.GetBlobRange()->GetBlobId());
+        const TBlobRangeLink16::TLinkId linkBlobId = PortionInfo.GetMeta().GetBlobIdxVerified(loadContext.GetBlobRange()->GetBlobId());
         AddIndex(loadContext.BuildIndexChunk(linkBlobId));
     } else {
         AddIndex(loadContext.BuildIndexChunk());
@@ -156,7 +156,7 @@ TPortionDataAccessor TPortionAccessorConstructor::BuildForLoading(
         };
         bool needSort = false;
         for (auto&& i : indexes) {
-            auto chunk = i.BuildIndexChunk();
+            auto chunk = i.BuildIndexChunk(*portion);
             if (indexChunks.size() && !pred(indexChunks.back(), chunk)) {
                 needSort = true;
             }
diff --git a/ydb/core/tx/columnshard/engines/portions/constructor_meta.h b/ydb/core/tx/columnshard/engines/portions/constructor_meta.h
index 4135e89ff9..71f7ae6925 100644
--- a/ydb/core/tx/columnshard/engines/portions/constructor_meta.h
+++ b/ydb/core/tx/columnshard/engines/portions/constructor_meta.h
@@ -64,6 +64,24 @@ public:
         return idx;
     }
 
+    std::optional<TBlobRangeLink16::TLinkId> GetBlobIdxOptional(const TUnifiedBlobId& blobId) const {
+        AFL_VERIFY(blobId.IsValid());
+        TBlobRangeLink16::TLinkId idx = 0;
+        for (auto&& i : BlobIds) {
+            if (i == blobId) {
+                return idx;
+            }
+            ++idx;
+        }
+        return std::nullopt;
+    }
+
+    TBlobRangeLink16::TLinkId GetBlobIdxVerified(const TUnifiedBlobId& blobId) const {
+        auto result = GetBlobIdxOptional(blobId);
+        AFL_VERIFY(result);
+        return *result;
+    }
+
     void SetCompactionLevel(const ui64 level) {
         CompactionLevel = level;
     }
diff --git a/ydb/core/tx/columnshard/engines/portions/meta.h b/ydb/core/tx/columnshard/engines/portions/meta.h
index 6b2bb00bd4..7c212fdf00 100644
--- a/ydb/core/tx/columnshard/engines/portions/meta.h
+++ b/ydb/core/tx/columnshard/engines/portions/meta.h
@@ -68,6 +68,24 @@ public:
         CompactionLevel = level;
     }
 
+    std::optional<TBlobRangeLink16::TLinkId> GetBlobIdxOptional(const TUnifiedBlobId& blobId) const {
+        AFL_VERIFY(blobId.IsValid());
+        TBlobRangeLink16::TLinkId idx = 0;
+        for (auto&& i : BlobIds) {
+            if (i == blobId) {
+                return idx;
+            }
+            ++idx;
+        }
+        return std::nullopt;
+    }
+
+    TBlobRangeLink16::TLinkId GetBlobIdxVerified(const TUnifiedBlobId& blobId) const {
+        auto result = GetBlobIdxOptional(blobId);
+        AFL_VERIFY(result);
+        return *result;
+    }
+
     using EProduced = NPortion::EProduced;
 
     NArrow::TReplaceKey IndexKeyStart;