Referencia del Archivo src/libpq/include/utils/tuplesort.h

#include "access/htup.h"
#include "access/itup.h"
#include "fmgr.h"

Ir al código fuente de este archivo.

'defines'
#define	tuplesort_getheaptuple(state, forward, should_free)   ((HeapTuple) tuplesort_gettuple(state, forward, should_free))
#define	tuplesort_getindextuple(state, forward, should_free)   ((IndexTuple) tuplesort_gettuple(state, forward, should_free))
'typedefs'
typedef struct Tuplesortstate	Tuplesortstate
Enumeraciones
enum	SortFunctionKind { SORTFUNC_LT, SORTFUNC_REVLT, SORTFUNC_CMP, SORTFUNC_REVCMP }
Funciones
Tuplesortstate *	tuplesort_begin_heap (TupleDesc tupDesc, int nkeys, Oid *sortOperators, AttrNumber *attNums, int workMem, bool randomAccess)
Tuplesortstate *	tuplesort_begin_index (Relation indexRel, bool enforceUnique, int workMem, bool randomAccess)
Tuplesortstate *	tuplesort_begin_datum (Oid datumType, Oid sortOperator, int workMem, bool randomAccess)
void	tuplesort_puttuple (Tuplesortstate *state, void *tuple)
void	tuplesort_putdatum (Tuplesortstate *state, Datum val, bool isNull)
void	tuplesort_performsort (Tuplesortstate *state)
void *	tuplesort_gettuple (Tuplesortstate *state, bool forward, bool *should_free)
bool	tuplesort_getdatum (Tuplesortstate *state, bool forward, Datum *val, bool *isNull)
void	tuplesort_end (Tuplesortstate *state)
void	tuplesort_rescan (Tuplesortstate *state)
void	tuplesort_markpos (Tuplesortstate *state)
void	tuplesort_restorepos (Tuplesortstate *state)
void	SelectSortFunction (Oid sortOperator, RegProcedure *sortFunction, SortFunctionKind *kind)
int32	ApplySortFunction (FmgrInfo *sortFunction, SortFunctionKind kind, Datum datum1, bool isNull1, Datum datum2, bool isNull2)

---

Documentación de los 'defines'

#define tuplesort_getheaptuple	(		state,
			forward,
			should_free
	)		((HeapTuple) tuplesort_gettuple(state, forward, should_free))

#define tuplesort_getindextuple	(		state,
			forward,
			should_free
	)		((IndexTuple) tuplesort_gettuple(state, forward, should_free))

---

Documentación de los 'typedefs'

typedef struct Tuplesortstate Tuplesortstate

---

Documentación de las enumeraciones

enum SortFunctionKind

Valores de enumeraciones:

SORTFUNC_LT
SORTFUNC_REVLT
SORTFUNC_CMP
SORTFUNC_REVCMP

---

Documentación de las funciones

int32 ApplySortFunction	(	FmgrInfo *	sortFunction,
		SortFunctionKind	kind,
		Datum	datum1,
		bool	isNull1,
		Datum	datum2,
		bool	isNull2
	)

void SelectSortFunction	(	Oid	sortOperator,
		RegProcedure *	sortFunction,
		SortFunctionKind *	kind
	)

Tuplesortstate* tuplesort_begin_datum	(	Oid	datumType,
		Oid	sortOperator,
		int	workMem,
		bool	randomAccess
	)

Tuplesortstate* tuplesort_begin_heap	(	TupleDesc	tupDesc,
		int	nkeys,
		Oid *	sortOperators,
		AttrNumber *	attNums,
		int	workMem,
		bool	randomAccess
	)

Tuplesortstate* tuplesort_begin_index	(	Relation	indexRel,
		bool	enforceUnique,
		int	workMem,
		bool	randomAccess
	)

void tuplesort_end

(

Tuplesortstate *

state

)

bool tuplesort_getdatum	(	Tuplesortstate *	state,
		bool	forward,
		Datum *	val,
		bool *	isNull
	)

void* tuplesort_gettuple	(	Tuplesortstate *	state,
		bool	forward,
		bool *	should_free
	)

void tuplesort_markpos

(

Tuplesortstate *

state

)

void tuplesort_performsort

(

Tuplesortstate *

state

)

void tuplesort_putdatum	(	Tuplesortstate *	state,
		Datum	val,
		bool	isNull
	)

void tuplesort_puttuple	(	Tuplesortstate *	state,
		void *	tuple
	)

void tuplesort_rescan

(

Tuplesortstate *

state

)

void tuplesort_restorepos

(

Tuplesortstate *

state

)