Clarify comment in tablesync.c

michaelpq · michaelpq · commit fc749bc7041c · 2021-02-04T16:02:31.000+09:00
Author: Peter Smith Reviewed-by: Amit Kapila, Michael Paquier, Euler Taveira Discussion: https://postgr.es/m/CAHut+Pt9_T6pWar0FLtPsygNmme8HPWPdGUyZ_8mE1Yvjdf0ZA@mail.gmail.com
diff --git a/src/backend/replication/logical/tablesync.c b/src/backend/replication/logical/tablesync.c
@@ -52,9 +52,8 @@
  *	  CATCHUP -> SYNCDONE -> READY.
  *
  *	  The catalog pg_subscription_rel is used to keep information about
- *	  subscribed tables and their state.  Some transient state during data
- *	  synchronization is kept in shared memory.  The states SYNCWAIT and
- *	  CATCHUP only appear in memory.
+ *	  subscribed tables and their state.  The catalog holds all states
+ *	  except SYNCWAIT and CATCHUP which are only in shared memory.
  *
  *	  Example flows look like this:
  *	   - Apply is in front:

Original file line number	Diff line number	Diff line change
`@@ -52,9 +52,8 @@`
`52`	`52`	`* CATCHUP -> SYNCDONE -> READY.`
`53`	`53`	`*`
`54`	`54`	`* The catalog pg_subscription_rel is used to keep information about`
`55`		`- * subscribed tables and their state. Some transient state during data`
`56`		`- * synchronization is kept in shared memory. The states SYNCWAIT and`
`57`		`- * CATCHUP only appear in memory.`
	`55`	`+ * subscribed tables and their state. The catalog holds all states`
	`56`	`+ * except SYNCWAIT and CATCHUP which are only in shared memory.`
`58`	`57`	`*`
`59`	`58`	`* Example flows look like this:`
`60`	`59`	`* - Apply is in front:`