Add comment for VARSIZE_ANY_EXHDR macro

Gurjeet Singh
2013-09-10 20:18:53 -04:00 · 2013-09-10 20:18:53 -04:00 · 0f59f4a645
parent d8a5608d4a
commit 0f59f4a645
1 changed files with 1 additions and 0 deletions
--- a/src/include/postgres.h
+++ b/src/include/postgres.h
@ -307,6 +307,7 @@ typedef struct
 	 (VARATT_IS_1B(PTR) ? VARSIZE_1B(PTR) : \
 	  VARSIZE_4B(PTR)))

+/* Size of a varlena data, excluding header */
 #define VARSIZE_ANY_EXHDR(PTR) \
 	(VARATT_IS_1B_E(PTR) ? VARSIZE_EXTERNAL(PTR)-VARHDRSZ_EXTERNAL : \
 	 (VARATT_IS_1B(PTR) ? VARSIZE_1B(PTR)-VARHDRSZ_SHORT : \