ClickHouse/dbms/src/Interpreters/InterpreterCheckQuery.cpp
2018-09-05 12:47:57 +03:00

39 lines
1.0 KiB
C++

#include <Interpreters/Context.h>
#include <Interpreters/InterpreterCheckQuery.h>
#include <Storages/IStorage.h>
#include <Parsers/ASTCheckQuery.h>
#include <DataStreams/OneBlockInputStream.h>
#include <DataTypes/DataTypesNumber.h>
#include <Columns/ColumnsNumber.h>
#include <Common/typeid_cast.h>
namespace DB
{
InterpreterCheckQuery::InterpreterCheckQuery(const ASTPtr & query_ptr_, const Context & context_)
: query_ptr(query_ptr_), context(context_)
{
}
BlockIO InterpreterCheckQuery::execute()
{
ASTCheckQuery & alter = typeid_cast<ASTCheckQuery &>(*query_ptr);
String & table_name = alter.table;
String database_name = alter.database.empty() ? context.getCurrentDatabase() : alter.database;
StoragePtr table = context.getTable(database_name, table_name);
auto column = ColumnUInt8::create();
column->insert(UInt64(table->checkData()));
result = Block{{ std::move(column), std::make_shared<DataTypeUInt8>(), "result" }};
BlockIO res;
res.in = std::make_shared<OneBlockInputStream>(result);
return res;
}
}