From 490798451a3adc32b71b30e285bd99875d67fa2b Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Wed, 8 Sep 2021 14:11:35 -0400 Subject: [PATCH] Fix misleading comments about TOAST access macros. Seems to have been my error in commit aeb1631ed. Noted by Christoph Berg. Discussion: https://postgr.es/m/YTeLipdnSOg4NNcI@msg.df7cb.de --- src/include/postgres.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/include/postgres.h b/src/include/postgres.h index 8e02f91108..0446daa0e6 100644 --- a/src/include/postgres.h +++ b/src/include/postgres.h @@ -361,13 +361,13 @@ typedef struct #define VARDATA_ANY(PTR) \ (VARATT_IS_1B(PTR) ? VARDATA_1B(PTR) : VARDATA_4B(PTR)) -/* Decompressed size and compression method of an external compressed Datum */ +/* Decompressed size and compression method of a compressed-in-line Datum */ #define VARDATA_COMPRESSED_GET_EXTSIZE(PTR) \ (((varattrib_4b *) (PTR))->va_compressed.va_tcinfo & VARLENA_EXTSIZE_MASK) #define VARDATA_COMPRESSED_GET_COMPRESS_METHOD(PTR) \ (((varattrib_4b *) (PTR))->va_compressed.va_tcinfo >> VARLENA_EXTSIZE_BITS) -/* Same, when working directly with a struct varatt_external */ +/* Same for external Datums; but note argument is a struct varatt_external */ #define VARATT_EXTERNAL_GET_EXTSIZE(toast_pointer) \ ((toast_pointer).va_extinfo & VARLENA_EXTSIZE_MASK) #define VARATT_EXTERNAL_GET_COMPRESS_METHOD(toast_pointer) \