Fix typos in comments

Fix various misspellings of xl_running_xacts.

Author: Japin Li <japinli@hotmail.com>
Discussion: https://postgr.es/m/MEYP282MB1669CA2A39ACF0172774ED27B6069@MEYP282MB1669.AUSP282.PROD.OUTLOOK.COM

diff --git a/src/backend/replication/logical/snapbuild.c b/src/backend/replication/logical/snapbuild.c
index 5006a5c464fcac3ec06e580cdc6e6058773f337a..556b7fcba38ada6258f4cd8cf0d7e80e9aaa314f 100644 (file)
--- a/src/backend/replication/logical/snapbuild.c
+++ b/src/backend/replication/logical/snapbuild.c
@@ -93,7 +93,7 @@
  * Initially the machinery is in the START stage. When an xl_running_xacts
  * record is read that is sufficiently new (above the safe xmin horizon),
  * there's a state transition. If there were no running xacts when the
- * running_xacts record was generated, we'll directly go into CONSISTENT
+ * xl_running_xacts record was generated, we'll directly go into CONSISTENT
  * state, otherwise we'll switch to the BUILDING_SNAPSHOT state. Having a full
  * snapshot means that all transactions that start henceforth can be decoded
  * in their entirety, but transactions that started previously can't. In
@@ -1331,7 +1331,7 @@ SnapBuildFindSnapshot(SnapBuild *builder, XLogRecPtr lsn, xl_running_xacts *runn
     */
 
    /*
-    * xl_running_xact record is older than what we can use, we might not have
+    * xl_running_xacts record is older than what we can use, we might not have
     * all necessary catalog rows anymore.
     */
    if (TransactionIdIsNormal(builder->initial_xmin_horizon) &&
@@ -1399,7 +1399,7 @@ SnapBuildFindSnapshot(SnapBuild *builder, XLogRecPtr lsn, xl_running_xacts *runn
     * encountered.  In that case, switch to BUILDING_SNAPSHOT state, and
     * record xl_running_xacts->nextXid.  Once all running xacts have finished
     * (i.e. they're all >= nextXid), we have a complete catalog snapshot.  It
-    * might look that we could use xl_running_xact's ->xids information to
+    * might look that we could use xl_running_xacts's ->xids information to
     * get there quicker, but that is problematic because transactions marked
     * as running, might already have inserted their commit record - it's
     * infeasible to change that with locking.