gdk_setop.h

这个是内存数据库中的一个管理工具

#ifndef _GDK_SETOP_H
#define _GDK_SETOP_H
#include "gdk.h"

#define HITk(t1,t2)             TRUE
#define HITs(t1,t2)             ((*cmp)(t1,t2) == 0)
#define TAILCHECKs(l,r)         TYPEerror(BATttype(l),	BATttype(r))
#define TAILCHECKk(l,r)         FALSE
#define EQUALs(t1,t2)           ((*cmp)(t1,t2) == 0 && (*cmp)(t1,tnil))
#define EQUALk(t1,t2)           TRUE
#define FLIPs(l,r)              TRUE
#define FLIPk(l,r)              FALSE

#define HITintersect(h,t)       bunfastins(bn,h,t)
#define HITdiff(h,t)
#define MISSintersect(h,t)
#define MISSdiff(h,t)           bunfastins(bn,h,t)
#define ENDintersect(h,t)
#define ENDdiff(h,t)            for(;p1<q1;p1+=s1) bunfastins(bn,h,t)
#define RALIGNdiff(bn,l,r)      FALSE
#define RALIGNintersect(bn,l,r) ((BAThordered(l)&BAThordered(r)&1) && l->hkey\
				 && BATcount(bn)==BATcount(r))
#endif /* _GDK_SETOP_H */