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Fix comment in procarray.c. 

Commit fea10a6434 renamed VariableCacheData.nextFullXid to nextXid.
But commit dc7420c2c9 introduced the comment mentioning nextFullXid.
This commit changes"nextFullXid" to "nextXid" in the comment.

Author: Zhang Mingli
Discussion: https://postgr.es/m/642BA615-4B28-4B0C-BDF6-4D33E366BCDF@gmail.com
This commit is contained in:
Fujii Masao 2022-07-28 14:56:20 +09:00
parent 4fc6b6eefc
commit d396606ebe
1 changed files with 2 additions and 2 deletions
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4
src/backend/storage/ipc/procarray.c
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@ -4212,8 +4212,8 @@ GlobalVisTestIsRemovableXid(GlobalVisState *state, TransactionId xid)
/*
* Convert 32 bit argument to FullTransactionId. We can do so safely
* because we know the xid has to, at the very least, be between
* [oldestXid, nextFullXid), i.e. within 2 billion of xid. To avoid taking
* a lock to determine either, we can just compare with
* [oldestXid, nextXid), i.e. within 2 billion of xid. To avoid taking a
* lock to determine either, we can just compare with
* state->definitely_needed, which was based on those value at the time
* the current snapshot was built.
*/