mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-25 00:52:02 +00:00
86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
#pragma once
|
|
|
|
#include <Common/escapeForFileName.h>
|
|
#include <Common/quoteString.h>
|
|
#include <Databases/DatabasesCommon.h>
|
|
#include <Interpreters/Context.h>
|
|
#include <Parsers/ASTCreateQuery.h>
|
|
#include <Storages/IStorage.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
std::pair<String, StoragePtr> createTableFromAST(
|
|
ASTCreateQuery ast_create_query,
|
|
const String & database_name,
|
|
const String & table_data_path_relative,
|
|
Context & context,
|
|
bool has_force_restore_data_flag);
|
|
|
|
/** Get the string with the table definition based on the CREATE query.
|
|
* It is an ATTACH query that you can execute to create a table from the correspondent database.
|
|
* See the implementation.
|
|
*/
|
|
String getObjectDefinitionFromCreateQuery(const ASTPtr & query);
|
|
|
|
|
|
/* Class to provide basic operations with tables when metadata is stored on disk in .sql files.
|
|
*/
|
|
class DatabaseOnDisk : public DatabaseWithOwnTablesBase
|
|
{
|
|
public:
|
|
DatabaseOnDisk(const String & name, const String & metadata_path_, const String & logger)
|
|
: DatabaseWithOwnTablesBase(name, logger)
|
|
, metadata_path(metadata_path_)
|
|
, data_path("data/" + escapeForFileName(database_name) + "/") {}
|
|
|
|
void createTable(
|
|
const Context & context,
|
|
const String & table_name,
|
|
const StoragePtr & table,
|
|
const ASTPtr & query) override;
|
|
|
|
void removeTable(
|
|
const Context & context,
|
|
const String & table_name) override;
|
|
|
|
void renameTable(
|
|
const Context & context,
|
|
const String & table_name,
|
|
IDatabase & to_database,
|
|
const String & to_table_name,
|
|
TableStructureWriteLockHolder & lock) override;
|
|
|
|
ASTPtr getCreateDatabaseQuery(const Context & context) const override;
|
|
|
|
void drop(const Context & context) override;
|
|
|
|
String getObjectMetadataPath(const String & object_name) const override;
|
|
|
|
time_t getObjectMetadataModificationTime(const String & object_name) const override;
|
|
|
|
String getDataPath() const override { return data_path; }
|
|
String getTableDataPath(const String & table_name) const override { return data_path + escapeForFileName(table_name) + "/"; }
|
|
String getTableDataPath(const ASTCreateQuery & query) const override { return getTableDataPath(query.table); }
|
|
String getMetadataPath() const override { return metadata_path; }
|
|
|
|
protected:
|
|
using IteratingFunction = std::function<void(const String &)>;
|
|
void iterateMetadataFiles(const Context & context, const IteratingFunction & iterating_function) const;
|
|
|
|
ASTPtr getCreateTableQueryImpl(
|
|
const Context & context,
|
|
const String & table_name,
|
|
bool throw_on_error) const override;
|
|
|
|
ASTPtr parseQueryFromMetadata(const Context & context, const String & metadata_file_path, bool throw_on_error = true, bool remove_empty = false) const;
|
|
ASTPtr getCreateQueryFromMetadata(const Context & context, const String & metadata_path, bool throw_on_error) const;
|
|
|
|
|
|
const String metadata_path;
|
|
const String data_path;
|
|
};
|
|
|
|
}
|