diff options
| author | Marc G. Fournier | 1996-07-09 06:22:35 +0000 |
|---|---|---|
| committer | Marc G. Fournier | 1996-07-09 06:22:35 +0000 |
| commit | 24a952fe4a27c6c66dc46ee3b2d860755fe063e1 (patch) | |
| tree | 9c669cd24c4dbcf57f03c278f3169dcb971a2151 /src/backend/access/ibit.h | |
Postgres95 1.01 Distribution - Virgin SourcesPG95_DIST
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 0000000000..f25c04cc0d --- /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 + * + * $Id$ + * + *------------------------------------------------------------------------- + */ +#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 */ |