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Diffstat (limited to 'src/backend/access/ibit.h')
-rw-r--r-- | src/backend/access/ibit.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/backend/access/ibit.h b/src/backend/access/ibit.h new file mode 100644 index 00000000000..990c23ab4dd --- /dev/null +++ b/src/backend/access/ibit.h @@ -0,0 +1,34 @@ +/*------------------------------------------------------------------------- + * + * ibit.h-- + * POSTGRES index valid attribute bit map definitions. + * + * + * Copyright (c) 1994, Regents of the University of California + * + * $Id: ibit.h,v 1.1.1.1 1996/07/09 06:21:08 scrappy Exp $ + * + *------------------------------------------------------------------------- + */ +#ifndef IBIT_H +#define IBIT_H + +#include "c.h" +#include "utils/memutils.h" + +typedef struct IndexAttributeBitMapData { + char bits[(MaxIndexAttributeNumber + MaxBitsPerByte - 1) + / MaxBitsPerByte]; +} IndexAttributeBitMapData; + +typedef IndexAttributeBitMapData *IndexAttributeBitMap; + +#define IndexAttributeBitMapSize sizeof(IndexAttributeBitMapData) + +/* + * IndexAttributeBitMapIsValid -- + * True iff attribute bit map is valid. + */ +#define IndexAttributeBitMapIsValid(bits) PointerIsValid(bits) + +#endif /* IBIT_H */ |