time_aggfuncs.h

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#ifndef __TIME_AGGFUNCS_H__
#define __TIME_AGGFUNCS_H__

#include <postgres.h>
#include <fmgr.h>
#include <catalog/pg_type.h>

/*****************************************************************************/

extern Datum datum_sum_int32(Datum l, Datum r);

extern Datum timestampset_tunion_transfn(PG_FUNCTION_ARGS);
extern Datum period_tunion_transfn(PG_FUNCTION_ARGS);
extern Datum periodset_tunion_transfn(PG_FUNCTION_ARGS);

extern Datum time_tunion_combinefn(PG_FUNCTION_ARGS);

extern Datum timestamp_tunion_finalfn(PG_FUNCTION_ARGS);
extern Datum period_tunion_finalfn(PG_FUNCTION_ARGS);

/*****************************************************************************/

#endif