fixed test #27536 (#29446)

Co-authored-by: Matveev Sergei <[email protected]>

Author: xyliganSereja

.github/config/muted_ya.txt

@@ -35,7 +35,6 @@ ydb/core/kqp/ut/close_with_load unittest.[*/*] chunk
 ydb/core/kqp/ut/federated_query/large_results KqpScriptExecResults.ExecuteScriptWithLargeFile
 ydb/core/kqp/ut/indexes KqpMultishardIndex.WriteIntoRenamingAsyncIndex
 ydb/core/kqp/ut/indexes KqpMultishardIndex.WriteIntoRenamingSyncIndex
-ydb/core/kqp/ut/olap KqpOlapOptimizer.OptimizationAfterDeletion
 ydb/core/kqp/ut/query KqpAnalyze.AnalyzeTable+ColumnStore
 ydb/core/kqp/ut/query KqpLimits.ComputeNodeMemoryLimit
 ydb/core/kqp/ut/query KqpStats.DeferredEffects+UseSink

ydb/core/kqp/ut/olap/optimizer_ut.cpp

@@ -334,6 +334,7 @@ Y_UNIT_TEST_SUITE(KqpOlapOptimizer) {
                 SELECT
                     Rows
                 FROM `/Root/olapStore/olapTable/.sys/primary_index_portion_stats`
+                WHERE Activity == 1
             )")
                           .GetValueSync();
             UNIT_ASSERT_C(it.IsSuccess(), it.GetIssues().ToString());