feat: add indexes support for incremental backup (#28051)

Author: Enjection

ydb/core/kqp/host/kqp_gateway_proxy.cpp

@@ -1368,7 +1368,8 @@ class TKqpGatewayProxy : public IKikimrGateway {
             op.SetPrefix(settings.Prefix);
 
             if (settings.Settings.IncrementalBackupEnabled) {
-                op.MutableIncrementalBackupConfig();
+                auto* config = op.MutableIncrementalBackupConfig();
+                config->SetOmitIndexes(settings.Settings.OmitIndexes);
             }
 
             auto errOpt = std::visit(

ydb/core/kqp/provider/yql_kikimr_exec.cpp

@@ -1021,6 +1021,13 @@ namespace {
                         "INCREMENTAL_BACKUP_ENABLED must be true or false"));
                     return false;
                 }
+            } else if (name == "omit_indexes") {
+                auto value = ToString(setting.Value().Cast<TCoDataCtor>().Literal().Cast<TCoAtom>().Value());
+                if (!TryFromString(value, dstSettings.OmitIndexes)) {
+                    ctx.AddError(TIssue(ctx.GetPosition(pos),
+                        "OMIT_INDEXES must be true or false"));
+                    return false;
+                }
             } else if (name == "storage") {
                 auto value = ToString(setting.Value().Cast<TCoDataCtor>().Literal().Cast<TCoAtom>().Value());
                 if (to_lower(value) != "cluster") {

ydb/core/kqp/provider/yql_kikimr_gateway.h

@@ -1056,7 +1056,8 @@ struct TAnalyzeSettings {
 };
 
 struct TBackupCollectionSettings {
-    bool IncrementalBackupEnabled;
+    bool IncrementalBackupEnabled = false;
+    bool OmitIndexes = false;
 };
 
 struct TCreateBackupCollectionSettings {

ydb/core/kqp/provider/yql_kikimr_type_ann.cpp

@@ -2448,6 +2448,7 @@ virtual TStatus HandleCreateTable(TKiCreateTable create, TExprContext& ctx) over
         const THashSet<TString> supportedSettings = {
             "incremental_backup_enabled",
             "storage",
+            "omit_indexes",
         };
 
         if (!CheckBackupCollectionSettings(node.BackupCollectionSettings(), supportedSettings, ctx)) {

ydb/core/protos/flat_scheme_op.proto

@@ -2312,7 +2312,7 @@ message TBackupCollectionDescription {
     }
 
     message TIncrementalBackupConfig {
-
+        optional bool OmitIndexes = 1 [default = false];
     }
 
     oneof Entries {