Statistics: disable ANALYZE in KQP without feature flag (#10706)

Author: azevaykin

ydb/core/kqp/provider/yql_kikimr_exec.cpp

@@ -2444,6 +2444,11 @@ class TKiSinkCallableExecutionTransformer : public TAsyncCallbackTransformer<TKi
         }
 
         if (auto maybeAnalyze = TMaybeNode<TKiAnalyzeTable>(input)) {
+            if (!SessionCtx->Config().FeatureFlags.GetEnableColumnStatistics()) {
+                ctx.AddError(TIssue("ANALYZE command is not supported because `EnableColumnStatistics` feature flag is off"));
+                return SyncError();            
+            }
+
             auto cluster = TString(maybeAnalyze.Cast().DataSink().Cluster());
 
             TAnalyzeSettings analyzeSettings = ParseAnalyzeSettings(maybeAnalyze.Cast());