diff --git a/ydb/library/yql/providers/yt/lib/row_spec/yql_row_spec.cpp b/ydb/library/yql/providers/yt/lib/row_spec/yql_row_spec.cpp
index 91a0a2265066..ae5324d68dcc 100644
--- a/ydb/library/yql/providers/yt/lib/row_spec/yql_row_spec.cpp
+++ b/ydb/library/yql/providers/yt/lib/row_spec/yql_row_spec.cpp
@@ -531,7 +531,7 @@ void TYqlRowSpecInfo::ParseConstraintsNode(TExprContext& ctx) {
         Sorted = nullptr;
         Unique = nullptr;
         Distinct = nullptr;
-        YQL_CLOG(WARN, ProviderDq) << " Error '" << error << "' on parse constraints node: " << ConstraintsNode.AsString();
+        YQL_CLOG(WARN, ProviderYt) << " Error '" << error << "' on parse constraints node: " << ConstraintsNode.AsString();
     }
 }
 
@@ -1490,6 +1490,7 @@ bool TYqlRowSpecInfo::ClearSortness(TExprContext& ctx, size_t fromMember) {
         SortedByTypes.erase(SortedByTypes.begin() + fromMember, SortedByTypes.end());
         SortDirections.erase(SortDirections.begin() + fromMember, SortDirections.end());
         UniqueKeys = false;
+        ParseConstraintsNode(ctx);
         ConstraintsNode.Clear();
         Sorted = MakeSortConstraint(ctx);
         return true;
diff --git a/ydb/library/yql/tests/sql/hybrid_file/part8/canondata/result.json b/ydb/library/yql/tests/sql/hybrid_file/part8/canondata/result.json
index a81f34511cdd..3f54e87a8e63 100644
--- a/ydb/library/yql/tests/sql/hybrid_file/part8/canondata/result.json
+++ b/ydb/library/yql/tests/sql/hybrid_file/part8/canondata/result.json
@@ -1569,9 +1569,9 @@
     ],
     "test.test[join-mergejoin_saves_output_sort--Debug]": [
         {
-            "checksum": "832a3bdfcc579e6509f78794316058ef",
-            "size": 17734,
-            "uri": "https://{canondata_backend}/1937001/cf2822c292da12910b7e5a0fd062f9cafa22374e/resource.tar.gz#test.test_join-mergejoin_saves_output_sort--Debug_/opt.yql_patched"
+            "checksum": "c0cef09ee1085acf9360f715f36cdfc2",
+            "size": 17767,
+            "uri": "https://{canondata_backend}/1937424/bd676d9ef123703690e03ed87d87e5057ac9f7c7/resource.tar.gz#test.test_join-mergejoin_saves_output_sort--Debug_/opt.yql_patched"
         }
     ],
     "test.test[join-mergejoin_saves_output_sort--Plan]": [
diff --git a/ydb/library/yql/tests/sql/sql2yql/canondata/result.json b/ydb/library/yql/tests/sql/sql2yql/canondata/result.json
index 31980b046784..46c16bd491ee 100644
--- a/ydb/library/yql/tests/sql/sql2yql/canondata/result.json
+++ b/ydb/library/yql/tests/sql/sql2yql/canondata/result.json
@@ -9673,6 +9673,13 @@
             "uri": "https://{canondata_backend}/1784117/d56ae82ad9d30397a41490647be1bd2124718f98/resource.tar.gz#test_sql2yql.test_join-yql-16011_/sql.yql"
         }
     ],
+    "test_sql2yql.test[join-yql-19081]": [
+        {
+            "checksum": "a413e3ffd94ef733fa06dd92dc938d38",
+            "size": 2396,
+            "uri": "https://{canondata_backend}/1946324/ea334656ca4ab8298f13987977529870591f2010/resource.tar.gz#test_sql2yql.test_join-yql-19081_/sql.yql"
+        }
+    ],
     "test_sql2yql.test[join-yql-4275]": [
         {
             "checksum": "7a7907d95d2d89a9ace4cb51778168a9",
@@ -29343,6 +29350,13 @@
             "uri": "https://{canondata_backend}/1880306/64654158d6bfb1289c66c626a8162239289559d0/resource.tar.gz#test_sql_format.test_join-yql-16011_/formatted.sql"
         }
     ],
+    "test_sql_format.test[join-yql-19081]": [
+        {
+            "checksum": "bb9f87ea7cebf0011816e7e80b447deb",
+            "size": 363,
+            "uri": "https://{canondata_backend}/1946324/ea334656ca4ab8298f13987977529870591f2010/resource.tar.gz#test_sql_format.test_join-yql-19081_/formatted.sql"
+        }
+    ],
     "test_sql_format.test[join-yql-4275]": [
         {
             "checksum": "702a517333cd9f61febcf59dd7f4c6db",
diff --git a/ydb/library/yql/tests/sql/suites/join/yql-19081.cfg b/ydb/library/yql/tests/sql/suites/join/yql-19081.cfg
new file mode 100644
index 000000000000..aaba13cbfae9
--- /dev/null
+++ b/ydb/library/yql/tests/sql/suites/join/yql-19081.cfg
@@ -0,0 +1,4 @@
+in Input1 sorted_uniq.txt
+in Input2 sorted_uniq.txt
+in Input3 input1.txt
+providers yt
diff --git a/ydb/library/yql/tests/sql/suites/join/yql-19081.sql b/ydb/library/yql/tests/sql/suites/join/yql-19081.sql
new file mode 100644
index 000000000000..215ba02fe4d4
--- /dev/null
+++ b/ydb/library/yql/tests/sql/suites/join/yql-19081.sql
@@ -0,0 +1,12 @@
+USE plato;
+
+pragma yt.JoinMergeTablesLimit="100";
+pragma yt.MapJoinLimit="10M";
+pragma yt.MaxReplicationFactorToFuseOperations="1";
+
+SELECT
+    a.key, a.subkey, c.value
+FROM Input1 as a
+JOIN /*+ merge() */ Input2 as b ON a.key = b.key AND a.subkey = b.subkey
+JOIN Input3 as c ON b.key = c.key AND b.subkey = c.subkey
+ORDER BY c.value;
diff --git a/ydb/library/yql/tests/sql/yt_native_file/part12/canondata/result.json b/ydb/library/yql/tests/sql/yt_native_file/part12/canondata/result.json
index 023c91cf71f9..d9fd138d63f5 100644
--- a/ydb/library/yql/tests/sql/yt_native_file/part12/canondata/result.json
+++ b/ydb/library/yql/tests/sql/yt_native_file/part12/canondata/result.json
@@ -1774,9 +1774,9 @@
     ],
     "test.test[join-mergejoin_saves_output_sort--Debug]": [
         {
-            "checksum": "a24333420ab20fca434fdf01767a3ebc",
-            "size": 14377,
-            "uri": "https://{canondata_backend}/1597364/616e247e5d5ae1750729c48aba2deef832a81906/resource.tar.gz#test.test_join-mergejoin_saves_output_sort--Debug_/opt.yql"
+            "checksum": "b466fa4cd7de29d3516265235d152608",
+            "size": 14410,
+            "uri": "https://{canondata_backend}/1937424/6e192910650dc063776d9d3a130fb0472c8ae2d3/resource.tar.gz#test.test_join-mergejoin_saves_output_sort--Debug_/opt.yql"
         }
     ],
     "test.test[join-mergejoin_saves_output_sort--Plan]": [
diff --git a/ydb/library/yql/tests/sql/yt_native_file/part4/canondata/result.json b/ydb/library/yql/tests/sql/yt_native_file/part4/canondata/result.json
index 5cc70ef09d34..dbbc937a140c 100644
--- a/ydb/library/yql/tests/sql/yt_native_file/part4/canondata/result.json
+++ b/ydb/library/yql/tests/sql/yt_native_file/part4/canondata/result.json
@@ -1253,6 +1253,27 @@
             "uri": "https://{canondata_backend}/1936997/9b8859f70925a58b024145127cca3e8e612258c0/resource.tar.gz#test.test_join-three_equalities--Results_/results.txt"
         }
     ],
+    "test.test[join-yql-19081--Debug]": [
+        {
+            "checksum": "18379586966c1368e58a985f62460c9f",
+            "size": 5904,
+            "uri": "https://{canondata_backend}/1900335/e2ae82cdc6e3f1159d5c7c10b0860d7e057c22dd/resource.tar.gz#test.test_join-yql-19081--Debug_/opt.yql"
+        }
+    ],
+    "test.test[join-yql-19081--Plan]": [
+        {
+            "checksum": "7693aa999bbb2a107b3c390098dcfcfd",
+            "size": 12510,
+            "uri": "https://{canondata_backend}/1900335/e2ae82cdc6e3f1159d5c7c10b0860d7e057c22dd/resource.tar.gz#test.test_join-yql-19081--Plan_/plan.txt"
+        }
+    ],
+    "test.test[join-yql-19081--Results]": [
+        {
+            "checksum": "5c9c88b303c4091cb35ca778529943d2",
+            "size": 1392,
+            "uri": "https://{canondata_backend}/1900335/e2ae82cdc6e3f1159d5c7c10b0860d7e057c22dd/resource.tar.gz#test.test_join-yql-19081--Results_/results.txt"
+        }
+    ],
     "test.test[json-json_exists/example--Debug]": [
         {
             "checksum": "e5e5e36c86cf040fd4d06930a747c7ce",