Backport #49844 to 23.4: TYPE_MISMATCH exception for in operator with…

… single column tuples.

src/Storages/MergeTree/KeyCondition.cpp

@@ -1183,7 +1183,7 @@ bool KeyCondition::tryPrepareSetIndex(
         /// Note: in case of ActionsDAG, tuple may be a constant.
         /// In this case, there is no keys in tuple. So, we don't have to check it.
         auto left_arg_tuple = left_arg.toFunctionNode();
-        if (left_arg_tuple.getFunctionName() == "tuple")
+        if (left_arg_tuple.getFunctionName() == "tuple" && left_arg_tuple.getArgumentsSize() > 1)
         {
             left_args_count = left_arg_tuple.getArgumentsSize();
             for (size_t i = 0; i < left_args_count; ++i)

tests/queries/0_stateless/02731_in_operator_with_one_size_tuple.reference

@@ -0,0 +1,2 @@
+2023-04-17	1
+2023-04-17	1

tests/queries/0_stateless/02731_in_operator_with_one_size_tuple.sql

@@ -0,0 +1,10 @@
+CREATE TABLE test(`report_date` Date, `sspid` UInt64) ENGINE MergeTree PARTITION BY report_date ORDER BY report_date;
+
+INSERT INTO test SELECT toDate('2023-04-20'), 0;
+INSERT INTO test SELECT toDate('2023-04-19'), 0;
+INSERT INTO test SELECT toDate('2023-04-17'), 1;
+INSERT INTO test SELECT toDate('2023-04-17'), 1;
+
+
+SELECT * FROM test  WHERE tuple(report_date) IN tuple(toDate('2023-04-17'));
+DROP TABLE test;