From 4c0abc84d4062d7c0d0f42dad31c11e5a366ea9d Mon Sep 17 00:00:00 2001
From: Alexander Gololobov <440544+davenger@users.noreply.github.com>
Date: Wed, 10 May 2023 15:40:32 +0200
Subject: [PATCH 1/2] Repro

---
 ..._lightweight_delete_and_object_column.reference |  1 +
 .../02352_lightweight_delete_and_object_column.sql | 14 ++++++++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 tests/queries/0_stateless/02352_lightweight_delete_and_object_column.reference
 create mode 100644 tests/queries/0_stateless/02352_lightweight_delete_and_object_column.sql

diff --git a/tests/queries/0_stateless/02352_lightweight_delete_and_object_column.reference b/tests/queries/0_stateless/02352_lightweight_delete_and_object_column.reference
new file mode 100644
index 00000000000..3ad5abd03ae
--- /dev/null
+++ b/tests/queries/0_stateless/02352_lightweight_delete_and_object_column.reference
@@ -0,0 +1 @@
+99
diff --git a/tests/queries/0_stateless/02352_lightweight_delete_and_object_column.sql b/tests/queries/0_stateless/02352_lightweight_delete_and_object_column.sql
new file mode 100644
index 00000000000..cd29d0ac445
--- /dev/null
+++ b/tests/queries/0_stateless/02352_lightweight_delete_and_object_column.sql
@@ -0,0 +1,14 @@
+DROP TABLE IF EXISTS t_obj SYNC;
+
+SET allow_experimental_object_type=1;
+
+CREATE TABLE t_obj(id Int32, name Object('json')) ENGINE = MergeTree() ORDER BY id;
+
+INSERT INTO t_obj select number, '{"a" : "' || toString(number) || '"}' FROM numbers(100);
+
+DELETE FROM t_obj WHERE id = 10;
+
+SELECT COUNT() FROM t_obj;
+
+DROP TABLE t_obj SYNC;
+

From e6f4e5cd10e2f2e07a7c2e162c0b6e7a02f57acc Mon Sep 17 00:00:00 2001
From: Alexander Gololobov <440544+davenger@users.noreply.github.com>
Date: Wed, 10 May 2023 16:10:04 +0200
Subject: [PATCH 2/2] Ignore LWD column in checkPartDynamicColumns

---
 src/Storages/MergeTree/MergeTreeData.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Storages/MergeTree/MergeTreeData.cpp b/src/Storages/MergeTree/MergeTreeData.cpp
index a2a3348eb42..533ae2cadd5 100644
--- a/src/Storages/MergeTree/MergeTreeData.cpp
+++ b/src/Storages/MergeTree/MergeTreeData.cpp
@@ -3608,6 +3608,9 @@ void MergeTreeData::checkPartDynamicColumns(MutableDataPartPtr & part, DataParts
     const auto & part_columns = part->getColumns();
     for (const auto & part_column : part_columns)
     {
+        if (part_column.name == LightweightDeleteDescription::FILTER_COLUMN.name)
+            continue;
+
         auto storage_column = columns.getPhysical(part_column.name);
         if (!storage_column.type->hasDynamicSubcolumns())
             continue;