diff options
Diffstat (limited to 'src/include/storage/bufpage.h')
| -rw-r--r-- | src/include/storage/bufpage.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/include/storage/bufpage.h b/src/include/storage/bufpage.h index 2ce3be765c0..0b023b3d853 100644 --- a/src/include/storage/bufpage.h +++ b/src/include/storage/bufpage.h @@ -178,8 +178,10 @@ typedef PageHeaderData *PageHeader; * tuple? */ #define PD_ALL_VISIBLE 0x0004 /* all tuples on page are visible to * everyone */ +#define PD_ALL_FROZEN 0x0008 /* all tuples on page are completely + frozen */ -#define PD_VALID_FLAG_BITS 0x0007 /* OR of all valid pd_flags bits */ +#define PD_VALID_FLAG_BITS 0x000F /* OR of all valid pd_flags bits */ /* * Page layout version number 0 is for pre-7.3 Postgres releases. @@ -367,7 +369,12 @@ typedef PageHeaderData *PageHeader; #define PageSetAllVisible(page) \ (((PageHeader) (page))->pd_flags |= PD_ALL_VISIBLE) #define PageClearAllVisible(page) \ - (((PageHeader) (page))->pd_flags &= ~PD_ALL_VISIBLE) + (((PageHeader) (page))->pd_flags &= ~(PD_ALL_VISIBLE | PD_ALL_FROZEN)) + +#define PageIsAllFrozen(page) \ + (((PageHeader) (page))->pd_flags & PD_ALL_FROZEN) +#define PageSetAllFrozen(page) \ + (((PageHeader) (page))->pd_flags |= PD_ALL_FROZEN) #define PageIsPrunable(page, oldestxmin) \ ( \ |