Fix comment in xact.h

xl_xact_relfilenodes refers to a number of relations, not XIDs, whose
relfilenodes are processed.

Author: Yu Kimura
Discussion: https://postgr.es/m/a6ba6cf6bd0c990e019f008bae83437f@oss.nttdata.com

diff --git a/src/include/access/xact.h b/src/include/access/xact.h
index 42b76cb4dd3defb373275688e9921251b17dd49a..9d2899dea176077a24ac184a76dcb7d2ed2133a4 100644 (file)
--- a/src/include/access/xact.h
+++ b/src/include/access/xact.h
@@ -239,7 +239,7 @@ typedef struct xl_xact_subxacts
 
 typedef struct xl_xact_relfilenodes
 {
-   int         nrels;          /* number of subtransaction XIDs */
+   int         nrels;          /* number of relations */
    RelFileNode xnodes[FLEXIBLE_ARRAY_MEMBER];
 } xl_xact_relfilenodes;
 #define MinSizeOfXactRelfilenodes offsetof(xl_xact_relfilenodes, xnodes)