From 46651ce6fe013220ed397add242004d764fc0153 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 14:15:05 +0200 Subject: Adding upstream version 14.5. Signed-off-by: Daniel Baumann --- src/include/access/visibilitymapdefs.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 src/include/access/visibilitymapdefs.h (limited to 'src/include/access/visibilitymapdefs.h') diff --git a/src/include/access/visibilitymapdefs.h b/src/include/access/visibilitymapdefs.h new file mode 100644 index 0000000..58be5a4 --- /dev/null +++ b/src/include/access/visibilitymapdefs.h @@ -0,0 +1,25 @@ +/*------------------------------------------------------------------------- + * + * visibilitymapdefs.h + * macros for accessing contents of visibility map pages + * + * + * Copyright (c) 2021, PostgreSQL Global Development Group + * + * src/include/access/visibilitymapdefs.h + * + *------------------------------------------------------------------------- + */ +#ifndef VISIBILITYMAPDEFS_H +#define VISIBILITYMAPDEFS_H + +/* Number of bits for one heap page */ +#define BITS_PER_HEAPBLOCK 2 + +/* Flags for bit map */ +#define VISIBILITYMAP_ALL_VISIBLE 0x01 +#define VISIBILITYMAP_ALL_FROZEN 0x02 +#define VISIBILITYMAP_VALID_BITS 0x03 /* OR of all valid visibilitymap + * flags bits */ + +#endif /* VISIBILITYMAPDEFS_H */ -- cgit v1.2.3