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PG16: vacuum_set_xid_limits is now vacuum_get_cutoffs

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PG16 refactors how VACUUM passes around its XID cutoffs. A new dedicated
struct is now used by VACUUM to maintain the XID/MXID cutoffs such as
FreezeLimit and OldestXmin. The vacuum_set_xid_limits() function is also
now replaced with a a new vacuum_get_cutoffs() function that uses the
new struct.

postgres/postgres@4ce3afb8
This commit is contained in:
Lakshmi Narayanan Sreethar 2023-06-01 23:01:46 +05:30 committed by Lakshmi Narayanan Sreethar
parent f92cab8c2a
commit beb3b39599
1 changed files with 23 additions and 1 deletions
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24
src/compat/compat.h
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@ -585,7 +585,7 @@ pg_strtoint64(const char *str)
NULL, \
multiXactCutoff, \
NULL)
#else
#elif PG16_LT
#define vacuum_set_xid_limits_compat(rel, \
freeze_min_age, \
freeze_table_age, \
@ -607,6 +607,28 @@ pg_strtoint64(const char *str)
freezeLimit, \
multiXactCutoff); \
} while (0)
#else
#define vacuum_set_xid_limits_compat(rel, \
freezeMinAge, \
freezeTableAge, \
multixactFreezeMinAge, \
multixactFreezeTableAge, \
oldestXmin, \
freezeLimit, \
multiXactCutoff) \
do \
{ \
struct VacuumCutoffs cutoffs; \
/* vacuum_get_cutoffs uses only the *_age members of the VacuumParams object */ \
VacuumParams params = { .freeze_min_age = freezeMinAge, \
.freeze_table_age = freezeTableAge, \
.multixact_freeze_min_age = multixactFreezeMinAge, \
.multixact_freeze_table_age = multixactFreezeTableAge }; \
vacuum_get_cutoffs(rel, &params, &cutoffs); \
*(oldestXmin) = cutoffs.OldestXmin; \
*(freezeLimit) = cutoffs.FreezeLimit; \
*(multiXactCutoff) = cutoffs.MultiXactCutoff; \
} while (0)
#endif
#if PG15_LT