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

diff --git a/src/backend/storage/ipc/procarray.c b/src/backend/storage/ipc/procarray.c
index dadaa958a84104e1ff36b002200e21322e1bc754..0555b02a8d95365f19dce5c5ddb13b8085b47218 100644 (file)
--- a/src/backend/storage/ipc/procarray.c
+++ b/src/backend/storage/ipc/procarray.c
@@ -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.
     */