ClickHouse/src/Parsers/ASTCreateQuery.h

106 lines
3.3 KiB
C++

#pragma once
#include <Parsers/ASTQueryWithTableAndOutput.h>
#include <Parsers/ASTQueryWithOnCluster.h>
#include <Parsers/ASTDictionary.h>
#include <Parsers/ASTDictionaryAttributeDeclaration.h>
#include <Parsers/ASTIdentifier.h>
#include <Parsers/ASTSelectWithUnionQuery.h>
#include <Interpreters/StorageID.h>
namespace DB
{
class ASTFunction;
class ASTSetQuery;
class ASTStorage : public IAST
{
public:
ASTFunction * engine = nullptr;
IAST * partition_by = nullptr;
IAST * primary_key = nullptr;
IAST * order_by = nullptr;
IAST * sample_by = nullptr;
IAST * ttl_table = nullptr;
ASTSetQuery * settings = nullptr;
String getID(char) const override { return "Storage definition"; }
ASTPtr clone() const override;
void formatImpl(const FormatSettings & s, FormatState & state, FormatStateStacked frame) const override;
};
class ASTExpressionList;
class ASTColumns : public IAST
{
public:
ASTExpressionList * columns = nullptr;
ASTExpressionList * indices = nullptr;
ASTExpressionList * constraints = nullptr;
IAST * primary_key = nullptr;
String getID(char) const override { return "Columns definition"; }
ASTPtr clone() const override;
void formatImpl(const FormatSettings & s, FormatState & state, FormatStateStacked frame) const override;
};
/// CREATE TABLE or ATTACH TABLE query
class ASTCreateQuery : public ASTQueryWithTableAndOutput, public ASTQueryWithOnCluster
{
public:
bool attach{false}; /// Query ATTACH TABLE, not CREATE TABLE.
bool if_not_exists{false};
bool is_ordinary_view{false};
bool is_materialized_view{false};
bool is_live_view{false};
bool is_populate{false};
bool replace_view{false}; /// CREATE OR REPLACE VIEW
ASTColumns * columns_list = nullptr;
ASTExpressionList * tables = nullptr;
StorageID to_table_id = StorageID::createEmpty(); /// For CREATE MATERIALIZED VIEW mv TO table.
ASTStorage * storage = nullptr;
String as_database;
String as_table;
ASTPtr as_table_function;
ASTSelectWithUnionQuery * select = nullptr;
bool is_dictionary{false}; /// CREATE DICTIONARY
ASTExpressionList * dictionary_attributes_list = nullptr; /// attributes of
ASTDictionary * dictionary = nullptr; /// dictionary definition (layout, primary key, etc.)
std::optional<UInt64> live_view_timeout; /// For CREATE LIVE VIEW ... WITH TIMEOUT ...
std::optional<UInt64> live_view_periodic_refresh; /// For CREATE LIVE VIEW ... WITH [PERIODIC] REFRESH ...
bool attach_short_syntax{false};
std::optional<String> attach_from_path = std::nullopt;
bool replace_table{false};
bool create_or_replace{false};
/** Get the text that identifies this element. */
String getID(char delim) const override { return (attach ? "AttachQuery" : "CreateQuery") + (delim + database) + delim + table; }
ASTPtr clone() const override;
ASTPtr getRewrittenASTWithoutOnCluster(const std::string & new_database) const override
{
return removeOnCluster<ASTCreateQuery>(clone(), new_database);
}
bool isView() const { return is_ordinary_view || is_materialized_view || is_live_view; }
protected:
void formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override;
};
}