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Backport #71538 to 24.8: Analyzer materialized view IN with CTE fix

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robot-clickhouse 2024-11-07 19:09:37 +00:00
parent 97f87d758a
commit 682e6f0593
8 changed files with 152 additions and 17 deletions
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12
src/Analyzer/QueryNode.h
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@ -602,9 +602,21 @@ public:
return projection_columns;
}
/// Returns true if query node is resolved, false otherwise
bool isResolved() const
{
return !projection_columns.empty();
}
/// Resolve query node projection columns
void resolveProjectionColumns(NamesAndTypes projection_columns_value);
/// Clear query node projection columns
void clearProjectionColumns()
{
projection_columns.clear();
}
/// Remove unused projection columns
void removeUnusedProjectionColumns(const std::unordered_set<std::string> & used_projection_columns);

49
src/Analyzer/Resolve/QueryAnalyzer.cpp
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@ -2899,27 +2899,29 @@ ProjectionNames QueryAnalyzer::resolveFunction(QueryTreeNodePtr & node, Identifi
/// Replace storage with values storage of insertion block
if (StoragePtr storage = scope.context->getViewSource())
{
QueryTreeNodePtr table_expression;
/// Process possibly nested sub-selects
for (auto * query_node = in_second_argument->as<QueryNode>(); query_node; query_node = table_expression->as<QueryNode>())
table_expression = extractLeftTableExpression(query_node->getJoinTree());
QueryTreeNodePtr table_expression = in_second_argument;
if (table_expression)
/// Process possibly nested sub-selects
while (table_expression)
{
if (auto * query_table_node = table_expression->as<TableNode>())
{
if (query_table_node->getStorageID().getFullNameNotQuoted() == storage->getStorageID().getFullNameNotQuoted())
{
auto replacement_table_expression = std::make_shared<TableNode>(storage, scope.context);
if (std::optional<TableExpressionModifiers> table_expression_modifiers = query_table_node->getTableExpressionModifiers())
replacement_table_expression->setTableExpressionModifiers(*table_expression_modifiers);
in_second_argument = in_second_argument->cloneAndReplace(table_expression, std::move(replacement_table_expression));
}
}
if (auto * query_node = table_expression->as<QueryNode>())
table_expression = extractLeftTableExpression(query_node->getJoinTree());
else if (auto * union_node = table_expression->as<UnionNode>())
table_expression = union_node->getQueries().getNodes().at(0);
else
break;
}
TableNode * table_expression_table_node = table_expression ? table_expression->as<TableNode>() : nullptr;
if (table_expression_table_node &&
table_expression_table_node->getStorageID().getFullNameNotQuoted() == storage->getStorageID().getFullNameNotQuoted())
{
auto replacement_table_expression_table_node = table_expression_table_node->clone();
replacement_table_expression_table_node->as<TableNode &>().updateStorage(storage, scope.context);
in_second_argument = in_second_argument->cloneAndReplace(table_expression, std::move(replacement_table_expression_table_node));
}
}
resolveExpressionNode(in_second_argument, scope, false /*allow_lambda_expression*/, true /*allow_table_expression*/);
}
/// Edge case when the first argument of IN is scalar subquery.
@ -5259,6 +5261,16 @@ void QueryAnalyzer::resolveQuery(const QueryTreeNodePtr & query_node, Identifier
auto & query_node_typed = query_node->as<QueryNode &>();
/** It is unsafe to call resolveQuery on already resolved query node, because during identifier resolution process
* we replace identifiers with expressions without aliases, also at the end of resolveQuery all aliases from all nodes will be removed.
* For subsequent resolveQuery executions it is possible to have wrong projection header, because for nodes
* with aliases projection name is alias.
*
* If for client it is necessary to resolve query node after clone, client must clear projection columns from query node before resolve.
*/
if (query_node_typed.isResolved())
return;
if (query_node_typed.isCTE())
ctes_in_resolve_process.insert(query_node_typed.getCTEName());
@ -5624,6 +5636,9 @@ void QueryAnalyzer::resolveUnion(const QueryTreeNodePtr & union_node, Identifier
{
auto & union_node_typed = union_node->as<UnionNode &>();
if (union_node_typed.isResolved())
return;
if (union_node_typed.isCTE())
ctes_in_resolve_process.insert(union_node_typed.getCTEName());

21
src/Analyzer/UnionNode.cpp
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@ -35,6 +35,7 @@ namespace ErrorCodes
{
extern const int TYPE_MISMATCH;
extern const int BAD_ARGUMENTS;
extern const int LOGICAL_ERROR;
}
UnionNode::UnionNode(ContextMutablePtr context_, SelectUnionMode union_mode_)
@ -50,6 +51,26 @@ UnionNode::UnionNode(ContextMutablePtr context_, SelectUnionMode union_mode_)
children[queries_child_index] = std::make_shared<ListNode>();
}
bool UnionNode::isResolved() const
{
for (const auto & query_node : getQueries().getNodes())
{
bool is_resolved = false;
if (auto * query_node_typed = query_node->as<QueryNode>())
is_resolved = query_node_typed->isResolved();
else if (auto * union_node_typed = query_node->as<UnionNode>())
is_resolved = union_node_typed->isResolved();
else
throw Exception(ErrorCodes::LOGICAL_ERROR, "Unexpected query tree node type in UNION node");
if (!is_resolved)
return false;
}
return true;
}
NamesAndTypes UnionNode::computeProjectionColumns() const
{
if (recursive_cte_table)

3
src/Analyzer/UnionNode.h
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@ -163,6 +163,9 @@ public:
return children[queries_child_index];
}
/// Returns true if union node is resolved, false otherwise
bool isResolved() const;
/// Compute union node projection columns
NamesAndTypes computeProjectionColumns() const;

1
tests/queries/0_stateless/03262_analyzer_materialized_view_in_with_cte.reference Normal file
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@ -0,0 +1 @@
1 2 \N test

63
tests/queries/0_stateless/03262_analyzer_materialized_view_in_with_cte.sql Normal file
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@ -0,0 +1,63 @@
SET allow_experimental_analyzer = 1;
DROP TABLE IF EXISTS mv_test;
DROP TABLE IF EXISTS mv_test_target;
DROP VIEW IF EXISTS mv_test_mv;
CREATE TABLE mv_test
(
`id` UInt64,
`ref_id` UInt64,
`final_id` Nullable(UInt64),
`display` String
)
ENGINE = Log;
CREATE TABLE mv_test_target
(
`id` UInt64,
`ref_id` UInt64,
`final_id` Nullable(UInt64),
`display` String
)
ENGINE = Log;
CREATE MATERIALIZED VIEW mv_test_mv TO mv_test_target
(
`id` UInt64,
`ref_id` UInt64,
`final_id` Nullable(UInt64),
`display` String
)
AS WITH
tester AS
(
SELECT
id,
ref_id,
final_id,
display
FROM mv_test
),
id_set AS
(
SELECT
display,
max(id) AS max_id
FROM mv_test
GROUP BY display
)
SELECT *
FROM tester
WHERE id IN (
SELECT max_id
FROM id_set
);
INSERT INTO mv_test ( id, ref_id, display) values ( 1, 2, 'test');
SELECT * FROM mv_test_target;
DROP VIEW mv_test_mv;
DROP TABLE mv_test_target;
DROP TABLE mv_test;

1
tests/queries/0_stateless/03263_analyzer_materialized_view_cte_nested.reference Normal file
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@ -0,0 +1 @@
2

19
tests/queries/0_stateless/03263_analyzer_materialized_view_cte_nested.sql Normal file
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@ -0,0 +1,19 @@
SET allow_experimental_analyzer = 1;
DROP TABLE IF EXISTS test_table;
DROP VIEW IF EXISTS test_mv;
CREATE TABLE test_table ENGINE = MergeTree ORDER BY tuple() AS SELECT 1 as col1;
CREATE MATERIALIZED VIEW test_mv ENGINE = MergeTree ORDER BY tuple() AS
WITH
subquery_on_source AS (SELECT col1 AS aliased FROM test_table),
output AS (SELECT * FROM test_table WHERE col1 IN (SELECT aliased FROM subquery_on_source))
SELECT * FROM output;
INSERT INTO test_table VALUES (2);
SELECT * FROM test_mv;
DROP VIEW test_mv;
DROP TABLE test_table;