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ClickHouse/dbms/src/Interpreters/tests/in_join_subqueries_preprocessor.cpp

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#include <ext/shared_ptr_helper.h>
#include <Parsers/ASTSelectQuery.h>
#include <Parsers/ParserSelectQuery.h>
#include <Parsers/parseQuery.h>
#include <Parsers/queryToString.h>
#include <Interpreters/InJoinSubqueriesPreprocessor.h>
#include <Interpreters/Context.h>
#include <Core/Settings.h>
#include <Storages/IStorage.h>
#include <Databases/IDatabase.h>
#include <Databases/DatabaseOrdinary.h>
#include <Common/typeid_cast.h>
#include <iostream>
#include <vector>
#include <utility>
#include <string>
namespace DB
{
namespace ErrorCodes
{
extern const int DISTRIBUTED_IN_JOIN_SUBQUERY_DENIED;
}
}
/// Simplified version of the StorageDistributed class.
class StorageDistributedFake : public ext::shared_ptr_helper<StorageDistributedFake>, public DB::IStorage
{
public:
std::string getName() const override { return "DistributedFake"; }
bool isRemote() const override { return true; }
size_t getShardCount() const { return shard_count; }
std::string getRemoteDatabaseName() const { return remote_database; }
std::string getRemoteTableName() const { return remote_table; }
std::string getTableName() const override { return ""; }
protected:
StorageDistributedFake(const std::string & remote_database_, const std::string & remote_table_, size_t shard_count_)
: remote_database(remote_database_), remote_table(remote_table_), shard_count(shard_count_)
{
}
private:
const std::string remote_database;
const std::string remote_table;
size_t shard_count;
};
class InJoinSubqueriesPreprocessorMock : public DB::InJoinSubqueriesPreprocessor
{
public:
using DB::InJoinSubqueriesPreprocessor::InJoinSubqueriesPreprocessor;
bool hasAtLeastTwoShards(const DB::IStorage & table) const override
{
if (!table.isRemote())
return false;
const StorageDistributedFake * distributed = dynamic_cast<const StorageDistributedFake *>(&table);
if (!distributed)
return false;
return distributed->getShardCount() >= 2;
}
std::pair<std::string, std::string>
getRemoteDatabaseAndTableName(const DB::IStorage & table) const override
{
const StorageDistributedFake & distributed = dynamic_cast<const StorageDistributedFake &>(table);
return { distributed.getRemoteDatabaseName(), distributed.getRemoteTableName() };
}
};
struct TestEntry
{
unsigned int line_num;
std::string input;
std::string expected_output;
size_t shard_count;
DB::DistributedProductMode mode;
bool expected_success;
};
using TestEntries = std::vector<TestEntry>;
using TestResult = std::pair<bool, std::string>;
TestResult check(const TestEntry & entry);
bool parse(DB::ASTPtr & ast, const std::string & query);
bool equals(const DB::ASTPtr & lhs, const DB::ASTPtr & rhs);
void reorder(DB::IAST * ast);
TestEntries entries =
{
/// Trivial query.
{
__LINE__,
"SELECT 1",
"SELECT 1",
0,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
1,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
0,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
1,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
0,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
1,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
0,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
1,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT 1",
"SELECT 1",
2,
DB::DistributedProductMode::GLOBAL,
true
},
/// Section IN / depth 1
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM test.visits_all)",
1,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM test.visits_all)",
1,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::DENY,
false
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits)",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits)",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits)",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits)",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits)",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section NOT IN / depth 1
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::DENY,
false
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL NOT IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM remote_db.remote_visits)",
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM remote_db.remote_visits)",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM remote_db.remote_visits)",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM remote_db.remote_visits)",
"SELECT count() FROM test.visits_all WHERE UserID NOT IN (SELECT UserID FROM remote_db.remote_visits)",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section GLOBAL IN / depth 1
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section GLOBAL NOT IN / depth 1
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL NOT IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL NOT IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL NOT IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL NOT IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL NOT IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL NOT IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL NOT IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL NOT IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section JOIN / depth 1
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
2,
DB::DistributedProductMode::DENY,
false
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM remote_db.remote_visits) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM remote_db.remote_visits) USING UserID",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM remote_db.remote_visits) USING UserID",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM remote_db.remote_visits) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM remote_db.remote_visits) USING UserID",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section GLOBAL JOIN / depth 1
{
__LINE__,
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all) USING UserID",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section JOIN / depth 1 / 2 of the subquery.
{
__LINE__,
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE RegionID = 2) USING UserID",
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE RegionID = 2) USING UserID",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT UserID FROM remote_db.remote_visits WHERE RegionID = 2) USING UserID",
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT UserID FROM remote_db.remote_visits WHERE RegionID = 2) USING UserID",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE RegionID = 2) USING UserID",
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE RegionID = 2) USING UserID",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE RegionID = 2) USING UserID",
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE RegionID = 2) USING UserID",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE RegionID = 2) USING UserID",
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE RegionID = 2) USING UserID",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section IN / depth 1 / table at level 2
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
2,
DB::DistributedProductMode::DENY,
false
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
"SELECT count() FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits))",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits))",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits))",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits))",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits))",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section GLOBAL IN / depth 1 / table at level 2
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
"SELECT UserID FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
"SELECT UserID FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
"SELECT UserID FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
"SELECT UserID FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all))",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section IN at level 1, GLOBAL IN section at level 2.
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)))",
"SELECT UserID FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)))",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)))",
"SELECT UserID FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)))",
2,
DB::DistributedProductMode::DENY,
false
},
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)))",
"SELECT UserID FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote_db.remote_visits WHERE UserID GLOBAL IN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits)))",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section JOIN / depth 1 / table at level 2
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)) USING UserID",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)) USING UserID",
2,
DB::DistributedProductMode::DENY,
false
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)) USING UserID",
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)) USING UserID",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits)) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits)) USING UserID",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM test.visits_all)) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits)) USING UserID",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits)) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM (SELECT UserID FROM remote_db.remote_visits)) USING UserID",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section IN / depth 2
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM test.visits_all WHERE OtherID = 1))",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM test.visits_all WHERE OtherID = 1))",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM remote_db.remote_visits WHERE OtherID = 1))",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM remote_db.remote_visits WHERE OtherID = 1))",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM test.visits_all WHERE OtherID = 1))",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM test.visits_all WHERE OtherID = 1))",
2,
DB::DistributedProductMode::DENY,
false
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM test.visits_all WHERE OtherID = 1))",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM test.visits_all WHERE OtherID = 1))",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM remote_db.remote_visits WHERE OtherID = 1))",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM remote_db.remote_visits WHERE OtherID = 1))",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM test.visits_all WHERE OtherID = 1))",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM remote_db.remote_visits WHERE BrowserID IN (SELECT BrowserID FROM remote_db.remote_visits WHERE OtherID = 1))",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM test.visits_all WHERE OtherID = 1))",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM test.visits_all WHERE OtherID = 1))",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all WHERE BrowserID IN (SELECT BrowserID FROM remote_db.remote_visits WHERE OtherID = 1))",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM remote_db.remote_visits WHERE BrowserID IN (SELECT BrowserID FROM remote_db.remote_visits WHERE OtherID = 1))",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section JOIN / depth 2
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all ALL INNER JOIN (SELECT CounterID FROM (SELECT CounterID FROM test.visits_all)) USING CounterID)",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all ALL INNER JOIN (SELECT CounterID FROM (SELECT CounterID FROM test.visits_all)) USING CounterID)",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all ALL INNER JOIN (SELECT CounterID FROM (SELECT CounterID FROM remote_db.remote_visits)) USING CounterID)",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all ALL INNER JOIN (SELECT CounterID FROM (SELECT CounterID FROM remote_db.remote_visits)) USING CounterID)",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all ALL INNER JOIN (SELECT CounterID FROM (SELECT CounterID FROM test.visits_all)) USING CounterID)",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all ALL INNER JOIN (SELECT CounterID FROM (SELECT CounterID FROM test.visits_all)) USING CounterID)",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all ALL INNER JOIN (SELECT CounterID FROM (SELECT CounterID FROM test.visits_all)) USING CounterID)",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID GLOBAL IN (SELECT CounterID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT CounterID FROM (SELECT CounterID FROM test.visits_all)) USING CounterID)",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.visits_all ALL INNER JOIN (SELECT CounterID FROM (SELECT CounterID FROM test.visits_all)) USING CounterID)",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM remote_db.remote_visits ALL INNER JOIN (SELECT CounterID FROM (SELECT CounterID FROM remote_db.remote_visits)) USING CounterID)",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section JOIN / depth 2
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2) USING OtherID)",
"SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2) USING OtherID)",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE OtherID GLOBAL IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM remote_db.remote_visits WHERE RegionID = 2) USING OtherID)",
"SELECT UserID FROM test.visits_all WHERE OtherID GLOBAL IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM remote_db.remote_visits WHERE RegionID = 2) USING OtherID)",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE OtherID GLOBAL IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2) USING OtherID)",
"SELECT UserID FROM test.visits_all WHERE OtherID GLOBAL IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2) USING OtherID)",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2) USING OtherID)",
"SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2) USING OtherID)",
2,
DB::DistributedProductMode::DENY,
false
},
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2) USING OtherID)",
"SELECT UserID FROM test.visits_all WHERE OtherID GLOBAL IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) GLOBAL ALL INNER JOIN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2) USING OtherID)",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM (SELECT OtherID FROM test.visits_all WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2) USING OtherID)",
"SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM (SELECT OtherID FROM remote_db.remote_visits WHERE RegionID = 1) ALL INNER JOIN (SELECT OtherID FROM remote_db.remote_visits WHERE RegionID = 2) USING OtherID)",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section JOIN / section IN
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2)) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2)) USING UserID",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2)) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2)) USING UserID",
2,
DB::DistributedProductMode::DENY,
false
},
{
__LINE__,
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2)) USING UserID",
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2)) USING UserID",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM remote_db.remote_visits WHERE RegionID = 2)) USING UserID",
"SELECT UserID FROM test.visits_all GLOBAL ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM remote_db.remote_visits WHERE RegionID = 2)) USING UserID",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM test.visits_all WHERE OtherID IN (SELECT OtherID FROM test.visits_all WHERE RegionID = 2)) USING UserID",
"SELECT UserID FROM test.visits_all ALL INNER JOIN (SELECT UserID FROM remote_db.remote_visits WHERE OtherID IN (SELECT OtherID FROM remote_db.remote_visits WHERE RegionID = 2)) USING UserID",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Table function.
{
__LINE__,
"SELECT count() FROM remote('127.0.0.{1,2}', test, visits_all) WHERE UserID IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM remote('127.0.0.{1,2}', test, visits_all) WHERE UserID IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT count() FROM remote('127.0.0.{1,2}', test, visits_all) WHERE UserID IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM remote('127.0.0.{1,2}', test, visits_all) WHERE UserID IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote('127.0.0.{1,2}', test, visits_all))",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote('127.0.0.{1,2}', test, visits_all))",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT count() FROM remote('127.0.0.{1,2}', test, visits_all) WHERE UserID IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM remote('127.0.0.{1,2}', test, visits_all) WHERE UserID IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote('127.0.0.{1,2}', test, visits_all))",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote('127.0.0.{1,2}', test, visits_all))",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT count() FROM remote('127.0.0.{1,2}', test, visits_all) WHERE UserID IN (SELECT UserID FROM test.visits_all)",
"SELECT count() FROM remote('127.0.0.{1,2}', test, visits_all) WHERE UserID IN (SELECT UserID FROM test.visits_all)",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote('127.0.0.{1,2}', test, visits_all))",
"SELECT count() FROM test.visits_all WHERE UserID IN (SELECT UserID FROM remote('127.0.0.{1,2}', test, visits_all))",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Section IN / depth 2 / two distributed tables
{
__LINE__,
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM test.hits_all WHERE BrowserID IN (SELECT BrowserID FROM test.visits_all WHERE OtherID = 1))",
"SELECT UserID, RegionID FROM test.visits_all WHERE CounterID IN (SELECT CounterID FROM distant_db.distant_hits WHERE BrowserID IN (SELECT BrowserID FROM remote_db.remote_visits WHERE OtherID = 1))",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Aggregate function.
{
__LINE__,
"SELECT sum(RegionID IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
"SELECT sum(RegionID IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
2,
DB::DistributedProductMode::ALLOW,
true
},
{
__LINE__,
"SELECT sum(RegionID IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
"SELECT sum(RegionID IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
2,
DB::DistributedProductMode::DENY,
false
},
{
__LINE__,
"SELECT sum(RegionID GLOBAL IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
"SELECT sum(RegionID GLOBAL IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT sum(RegionID IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
"SELECT sum(RegionID GLOBAL IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT sum(RegionID GLOBAL IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
"SELECT sum(RegionID GLOBAL IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT sum(RegionID IN (SELECT RegionID from test.hits_all)) FROM test.visits_all",
"SELECT sum(RegionID IN (SELECT RegionID from distant_db.distant_hits)) FROM test.visits_all",
2,
DB::DistributedProductMode::LOCAL,
true
},
/// Miscellaneous.
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all))",
"SELECT count() FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all))",
2,
DB::DistributedProductMode::DENY,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all))",
"SELECT count() FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all))",
2,
DB::DistributedProductMode::LOCAL,
true
},
{
__LINE__,
"SELECT count() FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all))",
"SELECT count() FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all WHERE x GLOBAL IN (SELECT x FROM test.visits_all))",
2,
DB::DistributedProductMode::GLOBAL,
true
},
{
__LINE__,
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.hits_all))",
"SELECT UserID FROM (SELECT UserID FROM test.visits_all WHERE UserID GLOBAL IN (SELECT UserID FROM test.hits_all))",
2,
DB::DistributedProductMode::DENY,
true
}
};
bool run()
{
unsigned int count = 0;
unsigned int i = 1;
for (const auto & entry : entries)
{
auto res = check(entry);
if (res.first)
{
++count;
}
else
std::cout << "Test " << i << " at line " << entry.line_num << " failed.\n"
"Expected: " << entry.expected_output << ".\n"
"Received: " << res.second << "\n";
++i;
}
std::cout << count << " out of " << entries.size() << " test(s) passed.\n";
return count == entries.size();
}
TestResult check(const TestEntry & entry)
{
static DB::Context context = DB::Context::createGlobal();
try
{
auto storage_distributed_visits = StorageDistributedFake::create("remote_db", "remote_visits", entry.shard_count);
auto storage_distributed_hits = StorageDistributedFake::create("distant_db", "distant_hits", entry.shard_count);
DB::DatabasePtr database = std::make_shared<DB::DatabaseOrdinary>("test", "./metadata/test/", context);
context.addDatabase("test", database);
database->attachTable("visits_all", storage_distributed_visits);
database->attachTable("hits_all", storage_distributed_hits);
context.setCurrentDatabase("test");
auto & settings = context.getSettingsRef();
settings.distributed_product_mode = entry.mode;
/// Parse and process the incoming query.
DB::ASTPtr ast_input;
if (!parse(ast_input, entry.input))
return TestResult(false, "parse error");
auto select_query = typeid_cast<DB::ASTSelectQuery *>(&*ast_input);
bool success = true;
try
{
InJoinSubqueriesPreprocessorMock(context).process(select_query);
}
catch (const DB::Exception & ex)
{
if (ex.code() == DB::ErrorCodes::DISTRIBUTED_IN_JOIN_SUBQUERY_DENIED)
success = false;
else
throw;
}
catch (...)
{
throw;
}
if (success != entry.expected_success)
return TestResult(false, "unexpected result");
/// Parse the expected result.
DB::ASTPtr ast_expected;
if (!parse(ast_expected, entry.expected_output))
return TestResult(false, "parse error");
/// Compare the processed query and the expected result.
bool res = equals(ast_input, ast_expected);
std::string output = DB::queryToString(ast_input);
context.detachDatabase("test");
return TestResult(res, output);
}
catch (DB::Exception & e)
{
context.detachDatabase("test");
return TestResult(false, e.displayText());
}
}
bool parse(DB::ASTPtr & ast, const std::string & query)
{
DB::ParserSelectQuery parser;
std::string message;
auto begin = query.data();
auto end = begin + query.size();
ast = DB::tryParseQuery(parser, begin, end, message, false, "", false, 0);
return ast != nullptr;
}
bool equals(const DB::ASTPtr & lhs, const DB::ASTPtr & rhs)
{
DB::ASTPtr lhs_reordered = lhs->clone();
reorder(&*lhs_reordered);
DB::ASTPtr rhs_reordered = rhs->clone();
reorder(&*rhs_reordered);
return lhs_reordered->getTreeHash() == rhs_reordered->getTreeHash();
}
void reorder(DB::IAST * ast)
{
if (ast == nullptr)
return;
auto & children = ast->children;
if (children.empty())
return;
for (auto & child : children)
reorder(&*child);
std::sort(children.begin(), children.end(), [](const DB::ASTPtr & lhs, const DB::ASTPtr & rhs)
{
return lhs->getTreeHash() < rhs->getTreeHash();
});
}
int main()
{
return run() ? EXIT_SUCCESS : EXIT_FAILURE;
}
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