pg_stat_statements: Fix incorrect comment with entry resets

Oversight in 6b4d23f.

Author: Japin Li, Richard Guo
Discussion: https://postgr.es/m/MEYP282MB1669FC91C764E277821936D3B624A@MEYP282MB1669.AUSP282.PROD.OUTLOOK.COM
Backpatch-through: 14

diff --git a/contrib/pg_stat_statements/pg_stat_statements.c b/contrib/pg_stat_statements/pg_stat_statements.c
index 8dcb2ddd64a5eca931783058ffcf69b15c78ca43..1b4103e0b974e223d68293e8cdf34ecd5b45d114 100644 (file)
--- a/contrib/pg_stat_statements/pg_stat_statements.c
+++ b/contrib/pg_stat_statements/pg_stat_statements.c
@@ -2552,10 +2552,8 @@ entry_reset(Oid userid, Oid dbid, uint64 queryid)
        if (entry)              /* found */
            num_remove++;
 
-       /* Also remove entries for top level statements */
+       /* Also remove the top-level entry if it exists. */
        key.toplevel = true;
-
-       /* Remove the key if exists */
        entry = (pgssEntry *) hash_search(pgss_hash, &key, HASH_REMOVE, NULL);
        if (entry)              /* found */
            num_remove++;