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Add vacuum_freeze_table_age GUC option, to control when VACUUM should

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ignore the visibility map and scan the whole table, to advance
relfrozenxid.
This commit is contained in:
Heikki Linnakangas
2009-01-16 13:27:24 +00:00
parent 19afb4e805
commit 6587818542
16 changed files with 170 additions and 54 deletions
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src/backend/utils/misc/postgresql.conf.sample
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@ -413,7 +413,8 @@
#default_transaction_read_only = off
#session_replication_role = 'origin'
#statement_timeout = 0 # 0 is disabled
#vacuum_freeze_min_age = 100000000
#vacuum_freeze_min_age = 50000000
#vacuum_freeze_table_age = 150000000
#xmlbinary = 'base64'
#xmloption = 'content'