Place new logic of schema inference in insert select from table function under setting

src/Core/Settings.h

@@ -566,6 +566,8 @@ class IColumn;
     M(Bool, enable_filesystem_cache_on_write_operations, false, "Write into cache on write operations. To actually work this setting requires be added to disk config too", 0) \
     M(Bool, read_from_filesystem_cache_if_exists_otherwise_bypass_cache, false, "", 0) \
     \
+    M(Bool, use_structure_from_insertion_table_in_table_functions, false, "Use structure from insertion table instead of schema inference from data", 0) \
+    \
     M(UInt64, http_max_tries, 10, "Max attempts to read via http.", 0) \
     M(UInt64, http_retry_initial_backoff_ms, 100, "Min milliseconds for backoff, when retrying read via http", 0) \
     M(UInt64, http_retry_max_backoff_ms, 10000, "Max milliseconds for backoff, when retrying read via http", 0) \

src/Interpreters/Context.cpp

@@ -1101,7 +1101,7 @@ StoragePtr Context::executeTableFunction(const ASTPtr & table_expression)
     if (!res)
     {
         TableFunctionPtr table_function_ptr = TableFunctionFactory::instance().get(table_expression, shared_from_this());
-        if (table_function_ptr->needStructureHint())
+        if (getSettingsRef().use_structure_from_insertion_table_in_table_functions && table_function_ptr->needStructureHint())
         {
             const auto & insertion_table = getInsertionTable();
             if (!insertion_table.empty())

tests/queries/0_stateless/01825_type_json_schema_inference.reference

@@ -5,4 +5,4 @@ Tuple(k1 Int8, k2 Tuple(k3 String, k4 Nested(k5 Int8, k6 Int8)), some Int8)
 {"id":"2","obj":"bbb","s":"bar"}
 {"map":{"k1":1,"k2":2},"obj":{"k1":1,"k2.k3":2},"map_type":"Map(String, Nullable(Float64))","obj_type":"Object('json')"}
 {"obj":{"k1":1,"k2":2},"map":{"k1":"1","k2":"2"}}
-Tuple(k1 Int8, k2 Int8)
+Tuple(k1 Float64, k2 Float64)

tests/queries/0_stateless/02249_insert_select_from_input_schema_inference.sql

@@ -1,3 +1,5 @@
+set use_structure_from_insertion_table_in_table_functions = 1;
+
 drop table if exists test_02249;
 create table test_02249 (x UInt32, y String) engine=Memory();
 insert into test_02249 select * from input() format JSONEachRow {"x" : 1, "y" : "string1"}, {"y" : "string2", "x" : 2};

tests/queries/0_stateless/02250_insert_select_from_file_schema_inference.sql

@@ -1,3 +1,5 @@
+set use_structure_from_insertion_table_in_table_functions = 1;
+
 insert into table function file('data_02250.jsonl') select NULL as x settings engine_file_truncate_on_insert=1;
 drop table if exists test_02250;
 create table test_02250 (x Nullable(UInt32)) engine=Memory();