Merge pull request ClickHouse#89857 from ClickHouse/backport/25.8/89819

Backport ClickHouse#89819 to 25.8: Fix reading paths and paths subcolumns from advanced shared data serialization

Author: Avogar

src/DataTypes/Serializations/SerializationObjectSharedData.cpp

@@ -962,6 +962,9 @@ std::shared_ptr<SerializationObjectSharedData::PathsDataGranules> SerializationO
                 throw Exception(ErrorCodes::LOGICAL_ERROR, "Info for path {} is not deserialized", requested_path);
 
             const auto & path_info = path_info_it->second;
+            /// Reset callbacks that might be different for different paths.
+            deserialization_settings.seek_stream_to_current_mark_callback = {};
+            deserialization_settings.getter = {};
 
             /// If we have only subcolumns requested for this path, read all subcolumns.
             auto paths_subcolumns_it = structure_state.requested_paths_subcolumns.find(requested_path);

tests/queries/0_stateless/03712_json_advanced_shared_data_bug.reference

@@ -0,0 +1,3 @@
+['{"arr1":9}']	{}
+['{"arr1":9}']	{}
+[]	{"b":[{"c":42}]}

tests/queries/0_stateless/03712_json_advanced_shared_data_bug.sql

@@ -0,0 +1,14 @@
+SET optimize_if_transform_strings_to_enum=0;
+
+DROP TABLE IF EXISTS t0;
+CREATE TABLE t0 (c0 JSON(max_dynamic_paths = 0)) ENGINE = MergeTree ORDER BY tuple() SETTINGS min_bytes_for_wide_part = 1, object_serialization_version = 'v3', object_shared_data_serialization_version_for_zero_level_parts = 'advanced', object_shared_data_buckets_for_wide_part = 1, index_granularity=2;
+
+INSERT INTO t0 SELECT multiIf(
+  number < 2,
+  '{"arr" : [{"arr1" : 9}]}',
+  '{"a" : {"b" : [{"c" : 42}]}}'
+) FROM numbers(3);
+
+SELECT c0.arr.:`Array(JSON)`, c0.^a FROM t0;
+DROP TABLE t0;
+