duckdb::Transaction Class Reference

Inheritance diagram for duckdb::Transaction:

Collaboration diagram for duckdb::Transaction:

Public Member Functions
DUCKDB_API	Transaction (TransactionManager &manager, ClientContext &context)
DUCKDB_API bool	IsReadOnly ()
	Whether or not the transaction has made any modifications to the database so far.
virtual DUCKDB_API void	SetReadWrite ()
	Promotes the transaction to a read-write transaction.
virtual DUCKDB_API void	SetModifications (DatabaseModificationType type)
	Sets the database modifications that are planned to be performed in this transaction.
virtual bool	IsDuckTransaction () const
template<class TARGET >
TARGET &	Cast ()
template<class TARGET >
const TARGET &	Cast () const

Static Public Member Functions
static DUCKDB_API Transaction &	Get (ClientContext &context, AttachedDatabase &db)
static DUCKDB_API Transaction &	Get (ClientContext &context, Catalog &catalog)
static DUCKDB_API optional_ptr< Transaction >	TryGet (ClientContext &context, AttachedDatabase &db)
	Returns the transaction for the given context if it has already been started.

Public Attributes
TransactionManager &	manager
weak_ptr< ClientContext >	context
atomic< transaction_t >	active_query

Private Attributes
bool	is_read_only

Detailed Description

The transaction object holds information about a currently running or past transaction

Member Function Documentation

SetModifications()

virtual DUCKDB_API void duckdb::Transaction::SetModifications ( DatabaseModificationType  type )

virtual

Sets the database modifications that are planned to be performed in this transaction.

Reimplemented in duckdb::DuckTransaction.

IsDuckTransaction()

virtual bool duckdb::Transaction::IsDuckTransaction ( ) const

inlinevirtual

                                           {
        return false;
    }

Cast() [1/2]

template<class TARGET >

TARGET & duckdb::Transaction::Cast ( )

inline

                   {
        DynamicCastCheck<TARGET>(this);
        return reinterpret_cast<TARGET &>(*this);
    }

Cast() [2/2]

template<class TARGET >

const TARGET & duckdb::Transaction::Cast ( ) const

inline

                               {
        DynamicCastCheck<TARGET>(this);
        return reinterpret_cast<const TARGET &>(*this);
    }

Member Data Documentation

active_query

atomic<transaction_t> duckdb::Transaction::active_query

The current active query for the transaction. Set to MAXIMUM_QUERY_ID if no query is active.

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The documentation for this class was generated from the following file:

• external/duckdb/duckdb.hpp