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Consolidate VACUUM xid cutoff logic.

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Push the logic for determining whether or not a VACUUM operation will be
aggressive down into vacuum_set_xid_limits().  This makes the function's
signature significantly simpler, and seems clearer overall.

Author: Peter Geoghegan <pg@bowt.ie>
Discussion: https://postgr.es/m/CAH2-WzkymFbz6D_vL+jmqSn_5q1wsFvFrE+37yLgL_Rkfd6Gzg@mail.gmail.com
This commit is contained in:
Peter Geoghegan
2022-02-11 18:26:15 -08:00
parent 872770fd6c
commit efa4a9462a
4 changed files with 79 additions and 95 deletions
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6
src/include/commands/vacuum.h
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@@ -286,15 +286,13 @@ extern void vac_update_relstats(Relation relation,
bool *frozenxid_updated,
bool *minmulti_updated,
bool in_outer_xact);
extern void vacuum_set_xid_limits(Relation rel,
extern bool vacuum_set_xid_limits(Relation rel,
int freeze_min_age, int freeze_table_age,
int multixact_freeze_min_age,
int multixact_freeze_table_age,
TransactionId *oldestXmin,
TransactionId *freezeLimit,
TransactionId *xidFullScanLimit,
MultiXactId *multiXactCutoff,
MultiXactId *mxactFullScanLimit);
MultiXactId *multiXactCutoff);
extern bool vacuum_xid_failsafe_check(TransactionId relfrozenxid,
MultiXactId relminmxid);
extern void vac_update_datfrozenxid(void);