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Move _bt_upgrademetapage() into critical section.

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Any changes on page should be done in critical section, so move
_bt_upgrademetapage into critical section. Improve comment. Found by Amit
Kapila during post-commit review of 857f9c36.

Author: Amit Kapila
This commit is contained in:
Teodor Sigaev
2018-05-30 19:45:39 +03:00
parent 3c9cf06945
commit 08186dc05b
3 changed files with 9 additions and 9 deletions
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2
src/include/access/nbtree.h
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@ -103,7 +103,7 @@ typedef struct BTMetaPageData
BlockNumber btm_fastroot; /* current "fast" root location */
uint32 btm_fastlevel; /* tree level of the "fast" root page */
/* following fields are available since page version 3 */
TransactionId btm_oldest_btpo_xact; /* oldest btpo_xact among of deleted
TransactionId btm_oldest_btpo_xact; /* oldest btpo_xact among all deleted
* pages */
float8 btm_last_cleanup_num_heap_tuples; /* number of heap tuples
* during last cleanup */