ClickHouse/dbms/include/DB/Storages/StorageMaterializedView.h
Andrey Mironov 3ebfd2fb7f dbms: pass proper context into Storage::read(). [#METR-14179]
This reverts commit 34b3f738a67432b44f6f69238dd1529535984d1a.
2014-12-17 17:19:07 +03:00

62 lines
1.6 KiB
C++

#pragma once
#include <DB/Storages/StorageView.h>
namespace DB
{
class StorageMaterializedView : public StorageView {
public:
static StoragePtr create(
const String & table_name_,
const String & database_name_,
Context & context_,
ASTPtr & query_,
NamesAndTypesListPtr columns_,
const NamesAndTypesList & materialized_columns_,
const NamesAndTypesList & alias_columns_,
const ColumnDefaults & column_defaults_,
bool attach_);
std::string getName() const override { return "MaterializedView"; }
std::string getInnerTableName() const { return ".inner." + table_name; }
NameAndTypePair getColumn(const String & column_name) const override;
bool hasColumn(const String & column_name) const override;
bool supportsSampling() const override { return data->supportsSampling(); }
bool supportsFinal() const override { return data->supportsFinal(); }
bool supportsPrewhere() const override { return data->supportsPrewhere(); }
BlockOutputStreamPtr write(ASTPtr query) override;
void drop() override;
bool optimize() override;
BlockInputStreams read(
const Names & column_names,
ASTPtr query,
const Context & context,
const Settings & settings,
QueryProcessingStage::Enum & processed_stage,
size_t max_block_size = DEFAULT_BLOCK_SIZE,
unsigned threads = 1) override;
private:
StoragePtr data;
StorageMaterializedView(
const String & table_name_,
const String & database_name_,
Context & context_,
ASTPtr & query_,
NamesAndTypesListPtr columns_,
const NamesAndTypesList & materialized_columns_,
const NamesAndTypesList & alias_columns_,
const ColumnDefaults & column_defaults_,
bool attach_);
};
}