ClickHouse/dbms/src/Interpreters/InterpreterCheckQuery.cpp

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#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>
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#include <Common/typeid_cast.h>
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namespace DB
{
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InterpreterCheckQuery::InterpreterCheckQuery(const ASTPtr & query_ptr_, const Context & context_)
: query_ptr(query_ptr_), context(context_)
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{
}
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BlockIO InterpreterCheckQuery::execute()
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{
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->insertValue(UInt64(table->checkData()));
result = Block{{ std::move(column), std::make_shared<DataTypeUInt8>(), "result" }};
BlockIO res;
res.in = std::make_shared<OneBlockInputStream>(result);
return res;
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}
}