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100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
#pragma once
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#include <common/types.h>
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#include <Core/UUID.h>
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#include <tuple>
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#include <Parsers/IAST_fwd.h>
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#include <Core/QualifiedTableName.h>
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#include <Common/Exception.h>
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namespace Poco
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{
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namespace Util
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{
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class AbstractConfiguration;
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}
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}
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int UNKNOWN_TABLE;
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}
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static constexpr char const * TABLE_WITH_UUID_NAME_PLACEHOLDER = "_";
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class ASTQueryWithTableAndOutput;
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class ASTIdentifier;
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class Context;
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// TODO(ilezhankin): refactor and merge |ASTTableIdentifier|
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struct StorageID
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{
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String database_name;
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String table_name;
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UUID uuid = UUIDHelpers::Nil;
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StorageID(const String & database, const String & table, UUID uuid_ = UUIDHelpers::Nil)
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: database_name(database), table_name(table), uuid(uuid_)
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{
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assertNotEmpty();
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}
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StorageID(const ASTQueryWithTableAndOutput & query);
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StorageID(const ASTIdentifier & table_identifier_node);
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StorageID(const ASTPtr & node);
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String getDatabaseName() const;
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String getTableName() const;
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String getFullTableName() const;
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String getFullNameNotQuoted() const;
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String getNameForLogs() const;
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operator bool () const
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{
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return !empty();
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}
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bool empty() const
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{
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return table_name.empty() && !hasUUID();
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}
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bool hasUUID() const
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{
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return uuid != UUIDHelpers::Nil;
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}
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bool operator<(const StorageID & rhs) const;
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void assertNotEmpty() const
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{
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// Can be triggered by user input, e.g. SELECT joinGetOrNull('', 'num', 500)
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if (empty())
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throw Exception("Both table name and UUID are empty", ErrorCodes::UNKNOWN_TABLE);
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if (table_name.empty() && !database_name.empty())
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throw Exception("Table name is empty, but database name is not", ErrorCodes::UNKNOWN_TABLE);
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}
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/// Avoid implicit construction of empty StorageID. However, it's needed for deferred initialization.
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static StorageID createEmpty() { return {}; }
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QualifiedTableName getQualifiedName() const { return {database_name, getTableName()}; }
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static StorageID fromDictionaryConfig(const Poco::Util::AbstractConfiguration & config,
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const String & config_prefix);
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/// If dictionary has UUID, then use it as dictionary name in ExternalLoader to allow dictionary renaming.
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/// ExternalDictnariesLoader::resolveDictionaryName(...) should be used to access such dictionaries by name.
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String getInternalDictionaryName() const;
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private:
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StorageID() = default;
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};
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}
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