minor fixes

src/Functions/validateNestedArraySizes.cpp

@@ -73,7 +73,7 @@ ColumnPtr FunctionValidateNestedArraySizes::executeImpl(
         size_t length = 0;
         for (size_t args_idx = 1; args_idx < args_num; ++args_idx)
         {
-            ColumnWithTypeAndName current_arg = arguments[args_idx];
+            const auto & current_arg = arguments[args_idx];
             const ColumnArray * current_column = nullptr;
             if (const auto * const_array = checkAndGetColumnConst<ColumnArray>(current_arg.column.get()))
             {
@@ -82,7 +82,7 @@ ColumnPtr FunctionValidateNestedArraySizes::executeImpl(
             }
             else
             {
-                current_column = typeid_cast<const ColumnArray *>(current_arg.column.get());
+                current_column = checkAndGetColumn<ColumnArray>(current_arg.column.get());
                 const auto & offsets = current_column->getOffsets();
                 length = offsets[i] - offsets[i - 1];
             }
@@ -102,12 +102,7 @@ ColumnPtr FunctionValidateNestedArraySizes::executeImpl(
         }
     }
 
-    auto res = ColumnUInt8::create(input_rows_count);
+    return ColumnUInt8::create(input_rows_count, 1);
-    auto & vec_res = res->getData();
-    for (size_t row_num = 0; row_num < input_rows_count; ++row_num)
-        vec_res[row_num] = 1;
-
-    return res;
 }
 
 void registerFunctionValidateNestedArraySizes(FunctionFactory & factory)

src/Interpreters/MutationsInterpreter.cpp

@@ -350,33 +350,34 @@ static void validateUpdateColumns(
     }
 }
 
-std::pair<bool, std::vector<ASTPtr>> getFullNestedSubColumnUpdatedExpr(
+/// Returns ASTs of updated nested subcolumns, if all of subcolumns were updated.
-    const String & column,
+/// They are used to validate sizes of nested arrays.
-    NamesAndTypesList & all_columns,
+/// If some of subcolumns were updated and some weren't,
-    std::unordered_map<String, ASTPtr> & column_to_update_expression)
+/// it makes sense to validate only updated columns with their old versions,
+/// because their sizes couldn't change, since sizes of all nested subcolumns must be consistent.
+static std::optional<std::vector<ASTPtr>> getExpressionsOfUpdatedNestedSubcolumns(
+    const String & column_name,
+    const NamesAndTypesList & all_columns,
+    const std::unordered_map<String, ASTPtr> & column_to_update_expression)
 {
     std::vector<ASTPtr> res;
-    auto source_name = Nested::splitName(column).first;
+    auto source_name = Nested::splitName(column_name).first;
 
     /// Check this nested subcolumn
-    for (const auto & it : all_columns)
+    for (const auto & column : all_columns)
     {
-        auto split = Nested::splitName(it.name);
+        auto split = Nested::splitName(column.name);
-        if (split.first == source_name && !split.second.empty())
+        if (isArray(column.type) && split.first == source_name && !split.second.empty())
         {
-            if (column_to_update_expression.find(it.name) == column_to_update_expression.end())
+            auto it = column_to_update_expression.find(column.name);
-            {
+            if (it == column_to_update_expression.end())
-                /// Update partial nested subcolumns
+                return {};
-                return std::make_pair(false, res);
+
-            }
+            res.push_back(it->second);
-            else
-            {
-                res.push_back(column_to_update_expression[it.name]);
-            }
         }
     }
 
-    return std::make_pair(true, res);
+    return res;
 }
 
 ASTPtr MutationsInterpreter::prepare(bool dry_run)
@@ -467,19 +468,20 @@ ASTPtr MutationsInterpreter::prepare(bool dry_run)
                 ///
                 /// Outer CAST is added just in case if we don't trust the returning type of 'if'.
 
-                auto type_literal = std::make_shared<ASTLiteral>(columns_desc.getPhysical(column).type->getName());
+                const auto & type = columns_desc.getPhysical(column).type;
+                auto type_literal = std::make_shared<ASTLiteral>(type->getName());
 
                 const auto & update_expr = kv.second;
 
                 ASTPtr condition = getPartitionAndPredicateExpressionForMutationCommand(command);
 
                 /// And new check validateNestedArraySizes for Nested subcolumns
-                if (!Nested::splitName(column).second.empty())
+                if (isArray(type) && !Nested::splitName(column).second.empty())
                 {
                     std::shared_ptr<ASTFunction> function = nullptr;
 
-                    auto nested_update_exprs = getFullNestedSubColumnUpdatedExpr(column, all_columns, command.column_to_update_expression);
+                    auto nested_update_exprs = getExpressionsOfUpdatedNestedSubcolumns(column, all_columns, command.column_to_update_expression);
-                    if (!nested_update_exprs.first)
+                    if (!nested_update_exprs)
                     {
                         function = makeASTFunction("validateNestedArraySizes",
                             condition,
@@ -487,14 +489,14 @@ ASTPtr MutationsInterpreter::prepare(bool dry_run)
                             std::make_shared<ASTIdentifier>(column));
                         condition = makeASTFunction("and", condition, function);
                     }
-                    else if (nested_update_exprs.second.size() > 1)
+                    else if (nested_update_exprs->size() > 1)
                     {
                         function = std::make_shared<ASTFunction>();
                         function->name = "validateNestedArraySizes";
                         function->arguments = std::make_shared<ASTExpressionList>();
                         function->children.push_back(function->arguments);
                         function->arguments->children.push_back(condition);
-                        for (const auto & it : nested_update_exprs.second)
+                        for (const auto & it : *nested_update_exprs)
                             function->arguments->children.push_back(it->clone());
                         condition = makeASTFunction("and", condition, function);
                     }

src/Storages/MergeTree/MergeTreeDataPartWriterWide.cpp

@@ -3,6 +3,7 @@
 #include <Compression/CompressionFactory.h>
 #include <Compression/CompressedReadBufferFromFile.h>
 #include <DataTypes/Serializations/ISerialization.h>
+#include <Common/escapeForFileName.h>
 
 namespace DB
 {
@@ -393,8 +394,9 @@ void MergeTreeDataPartWriterWide::validateColumnOfFixedSize(const String & name,
         throw Exception(ErrorCodes::LOGICAL_ERROR, "Cannot validate column of non fixed type {}", type.getName());
 
     auto disk = data_part->volume->getDisk();
-    String mrk_path = fullPath(disk, part_path + name + marks_file_extension);
+    String escaped_name = escapeForFileName(name);
-    String bin_path = fullPath(disk, part_path + name + DATA_FILE_EXTENSION);
+    String mrk_path = fullPath(disk, part_path + escaped_name + marks_file_extension);
+    String bin_path = fullPath(disk, part_path + escaped_name + DATA_FILE_EXTENSION);
     DB::ReadBufferFromFile mrk_in(mrk_path);
     DB::CompressedReadBufferFromFile bin_in(bin_path, 0, 0, 0, nullptr);
     bool must_be_last = false;

tests/queries/0_stateless/01788_update_nested_type_subcolumn_check.reference

@@ -4,10 +4,6 @@
 2	[100,200,300]	['a','b','c']	[10,20,30]
 3	[3,4]	['aa','bb']	[3,6]
 4	[4,5]	['aa','bb']	[4,8]
-waiting	default	test_wide_nested	mutation_2.txt	UPDATE `info.id` = [100, 200] WHERE id = 1
-waiting	default	test_wide_nested	mutation_3.txt	UPDATE `info.id` = [100, 200, 300], `info.age` = [10, 20, 30], `info.name` = [\'a\', \'b\', \'c\'] WHERE id = 2
-waiting	default	test_wide_nested	mutation_4.txt	UPDATE `info.id` = [100, 200], `info.age` = [10, 20, 30], `info.name` = [\'a\', \'b\', \'c\'] WHERE id = 0
-waiting	default	test_wide_nested	mutation_5.txt	UPDATE `info.id` = [100, 200, 300], `info.age` = [10, 20, 30] WHERE id = 1
 0	[0,1]	['aa','bb']	[0,0]
 1	[100,200]	['aa','bb']	[1,2]
 2	[100,200,300]	['a','b','c']	[100,200,300]
@@ -18,3 +14,8 @@ waiting	default	test_wide_nested	mutation_5.txt	UPDATE `info.id` = [100, 200, 30
 2	[100,200,300]	['a','b','c']	[100,200,300]
 3	[68,72]	['aa','bb']	[68,72]
 4	[4,5]	['aa','bb']	[4,8]
+0	0	aa	0
+1	1	bb	2
+2	2	aa	4
+3	3	aa	6
+4	4	aa	8

tests/queries/0_stateless/01788_update_nested_type_subcolumn_check.sql

@@ -1,4 +1,3 @@
-USE default;
 DROP TABLE IF EXISTS test_wide_nested;
 
 CREATE TABLE test_wide_nested
@@ -12,19 +11,60 @@ ENGINE = MergeTree
 ORDER BY tuple()
 SETTINGS min_bytes_for_wide_part = 0;
 
+set mutations_sync = 1;
+
+INSERT INTO test_wide_nested SELECT number, [number,number + 1], ['aa','bb'], [number,number * 2] FROM numbers(5);
+
+alter table test_wide_nested update `info.id` = [100,200] where id = 1;
+select * from test_wide_nested where id = 1 order by id;
+
+alter table test_wide_nested update `info.id` = [100,200,300], `info.age` = [10,20,30], `info.name` = ['a','b','c'] where id = 2;
+select * from test_wide_nested;
+
+alter table test_wide_nested update `info.id` = [100,200,300], `info.age` = `info.id`, `info.name` = ['a','b','c'] where id = 2;
+select * from test_wide_nested;
+
+alter table test_wide_nested update `info.id` = [100,200], `info.age`=[68,72] where id = 3;
+alter table test_wide_nested update `info.id` = `info.age` where id = 3;
+select * from test_wide_nested;
+
+alter table test_wide_nested update `info.id` = [100,200], `info.age` = [10,20,30], `info.name` = ['a','b','c']  where id = 0; -- { serverError 341 }
+
+-- Recreate table, because KILL MUTATION is not suitable for parallel tests execution.
+DROP TABLE test_wide_nested;
+
+CREATE TABLE test_wide_nested
+(
+    `id` Int,
+    `info.id` Array(Int),
+    `info.name` Array(String),
+    `info.age` Array(Int)
+)
+ENGINE = MergeTree
+ORDER BY tuple()
+SETTINGS min_bytes_for_wide_part = 0;
+
 INSERT INTO test_wide_nested SELECT number, [number,number + 1], ['aa','bb'], [number,number * 2] FROM numbers(5);
 
-alter table test_wide_nested update `info.id` =[100,200]  where id = 1 settings mutations_sync=1;
+alter table test_wide_nested update `info.id` = [100,200,300], `info.age` = [10,20,30] where id = 1; -- { serverError 341 }
-select * from test_wide_nested where id = 1;
+
-alter table test_wide_nested update `info.id` =[100,200,300], `info.age`=[10,20,30], `info.name`=['a','b','c']  where id = 2 settings mutations_sync=1;
-select * from test_wide_nested;
-alter table test_wide_nested update `info.id` =[100,200], `info.age`=[10,20,30], `info.name`=['a','b','c']  where id = 0 settings mutations_sync=1; -- { serverError 341 }
-kill mutation where table = 'test_wide_nested';
-alter table test_wide_nested update `info.id` =[100,200,300], `info.age`=[10,20,30]  where id = 1 settings mutations_sync=1; -- { serverError 341 }
-kill mutation where table = 'test_wide_nested';
-alter table test_wide_nested update `info.id` =[100,200,300], `info.age`=`info.id`, `info.name`=['a','b','c']  where id = 2 settings mutations_sync=1;
-select * from test_wide_nested;
-alter table test_wide_nested update `info.id` =[100,200], `info.age`=[68,72]  where id = 3 settings mutations_sync=1;
-alter table test_wide_nested update `info.id` = `info.age` where id = 3 settings mutations_sync=1;
-select * from test_wide_nested;
 DROP TABLE test_wide_nested;
+
+DROP TABLE IF EXISTS test_wide_not_nested;
+
+CREATE TABLE test_wide_not_nested
+(
+  `id` Int,
+  `info.id` Int,
+  `info.name` String,
+  `info.age` Int
+)
+ENGINE = MergeTree
+ORDER BY tuple()
+SETTINGS min_bytes_for_wide_part = 0;
+
+INSERT INTO test_wide_not_nested SELECT number, number, 'aa', number * 2 FROM numbers(5);
+ALTER TABLE test_wide_not_nested UPDATE `info.name` = 'bb' WHERE id = 1;
+SELECT * FROM test_wide_not_nested ORDER BY id;
+
+DROP TABLE test_wide_not_nested;