Allow streams on index table (ydb-platform#6827)

Author: CyberROFL

ydb/core/protos/flat_scheme_op.proto

@@ -913,10 +913,6 @@ message TCreateCdcStream {
     optional TCdcStreamDescription StreamDescription = 2;
     optional uint64 RetentionPeriodSeconds = 3 [default = 86400]; // 1d by default
     optional uint32 TopicPartitions = 4;
-    oneof IndexMode {
-        google.protobuf.Empty AllIndexes = 5; // Create topic per each index
-        string IndexName = 6;
-    }
 }
 
 message TAlterCdcStream {
@@ -1631,7 +1627,6 @@ message TIndexBuildControl {
 
 message TLockConfig {
     optional string Name = 1;
-    optional bool AllowIndexImplLock = 2;
 }
 
 message TLockGuard {

ydb/core/tx/schemeshard/schemeshard__operation_alter_cdc_stream.cpp

@@ -143,9 +143,12 @@ class TAlterCdcStream: public TSubOperation {
                 .NotDeleted()
                 .IsTable()
                 .NotAsyncReplicaTable()
-                .IsCommonSensePath()
                 .NotUnderOperation();
 
+            if (checks && !tablePath.IsInsideTableIndexPath()) {
+                checks.IsCommonSensePath();
+            }
+
             if (!checks) {
                 result->SetError(checks.GetStatus(), checks.GetError());
                 return result;
@@ -370,10 +373,13 @@ class TAlterCdcStreamAtTable: public TSubOperation {
                 .NotDeleted()
                 .IsTable()
                 .NotAsyncReplicaTable()
-                .IsCommonSensePath()
                 .NotUnderDeleting()
                 .NotUnderOperation();
 
+            if (checks && !tablePath.IsInsideTableIndexPath()) {
+                checks.IsCommonSensePath();
+            }
+
             if (!checks) {
                 result->SetError(checks.GetStatus(), checks.GetError());
                 return result;
@@ -476,10 +482,10 @@ class TAlterCdcStreamAtTable: public TSubOperation {
 } // anonymous
 
 std::variant<TStreamPaths, ISubOperation::TPtr> DoAlterStreamPathChecks(
-    const TOperationId& opId,
-    const TPath& workingDirPath,
-    const TString& tableName,
-    const TString& streamName)
+        const TOperationId& opId,
+        const TPath& workingDirPath,
+        const TString& tableName,
+        const TString& streamName)
 {
     const auto tablePath = workingDirPath.Child(tableName);
     {
@@ -492,9 +498,12 @@ std::variant<TStreamPaths, ISubOperation::TPtr> DoAlterStreamPathChecks(
             .NotDeleted()
             .IsTable()
             .NotAsyncReplicaTable()
-            .IsCommonSensePath()
             .NotUnderOperation();
 
+        if (checks && !tablePath.IsInsideTableIndexPath()) {
+            checks.IsCommonSensePath();
+        }
+
         if (!checks) {
             return CreateReject(opId, checks.GetStatus(), checks.GetError());
         }
@@ -521,11 +530,11 @@ std::variant<TStreamPaths, ISubOperation::TPtr> DoAlterStreamPathChecks(
 }
 
 void DoAlterStream(
-    const NKikimrSchemeOp::TAlterCdcStream& op,
-    const TOperationId& opId,
-    const TPath& workingDirPath,
-    const TPath& tablePath,
-    TVector<ISubOperation::TPtr>& result)
+        TVector<ISubOperation::TPtr>& result,
+        const NKikimrSchemeOp::TAlterCdcStream& op,
+        const TOperationId& opId,
+        const TPath& workingDirPath,
+        const TPath& tablePath)
 {
     {
         auto outTx = TransactionTemplate(tablePath.PathString(), NKikimrSchemeOp::EOperationType::ESchemeOpAlterCdcStreamImpl);
@@ -601,7 +610,7 @@ TVector<ISubOperation::TPtr> CreateAlterCdcStream(TOperationId opId, const TTxTr
 
     TVector<ISubOperation::TPtr> result;
 
-    DoAlterStream(op, opId, workingDirPath, tablePath, result);
+    DoAlterStream(result, op, opId, workingDirPath, tablePath);
 
     if (op.HasGetReady()) {
         auto outTx = TransactionTemplate(workingDirPath.PathString(), NKikimrSchemeOp::EOperationType::ESchemeOpDropLock);

ydb/core/tx/schemeshard/schemeshard__operation_alter_cdc_stream.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include "schemeshard__operation_create_cdc_stream.h" // for TStreamPaths
 #include "schemeshard__operation_common.h"
+#include "schemeshard__operation_create_cdc_stream.h" // for TStreamPaths
 #include "schemeshard__operation_part.h"
 #include "schemeshard_impl.h"
 
@@ -17,10 +17,10 @@ std::variant<TStreamPaths, ISubOperation::TPtr> DoAlterStreamPathChecks(
     const TString& streamName);
 
 void DoAlterStream(
+    TVector<ISubOperation::TPtr>& result,
     const NKikimrSchemeOp::TAlterCdcStream& op,
     const TOperationId& opId,
     const TPath& workingDirPath,
-    const TPath& tablePath,
-    TVector<ISubOperation::TPtr>& result);
+    const TPath& tablePath);
 
 } // namespace NKikimr::NSchemesShard::NCdc

ydb/core/tx/schemeshard/schemeshard__operation_alter_continuous_backup.cpp

@@ -1,9 +1,8 @@
-#include "schemeshard__operation_part.h"
+#include "schemeshard__operation_alter_cdc_stream.h"
 #include "schemeshard__operation_common.h"
+#include "schemeshard__operation_part.h"
 #include "schemeshard_impl.h"
 
-#include "schemeshard__operation_alter_cdc_stream.h"
-
 #include <ydb/core/tx/schemeshard/backup/constants.h>
 
 #include <ydb/core/engine/mkql_proto.h>
@@ -111,7 +110,7 @@ TVector<ISubOperation::TPtr> CreateAlterContinuousBackup(TOperationId opId, cons
 
     TVector<ISubOperation::TPtr> result;
 
-    NCdc::DoAlterStream(alterCdcStreamOp, opId, workingDirPath, tablePath, result);
+    NCdc::DoAlterStream(result, alterCdcStreamOp, opId, workingDirPath, tablePath);
 
     if (cbOp.GetActionCase() == NKikimrSchemeOp::TAlterContinuousBackup::kTakeIncrementalBackup) {
         DoCreateIncBackupTable(opId, backupTablePath, schema, result);