Fix bad formula in previous commit.
Commit used a slightly
novel, and wrong, approach to compute the length of the last
toast chunk. It worked fine unless the last chunk happened to
have the largest possible size.
@@ -443,7 +443,7 @@ toast_fetch_datum(struct varlena *attr)
toast_pointer.va_valueid,
RelationGetRelationName(toastrel))));
expected_size = curchunk < totalchunks - 1 ? TOAST_MAX_CHUNK_SIZE
- : attrsize % TOAST_MAX_CHUNK_SIZE;
+ : attrsize - ((totalchunks - 1) * TOAST_MAX_CHUNK_SIZE);
if (chunksize != expected_size)
ereport(ERROR,
(errcode(ERRCODE_DATA_CORRUPTED),
@@ -676,7 +676,7 @@ toast_fetch_datum_slice(struct varlena *attr, int32 sliceoffset,
toast_pointer.va_valueid,
RelationGetRelationName(toastrel))));
expected_size = curchunk < totalchunks - 1 ? TOAST_MAX_CHUNK_SIZE
- : attrsize % TOAST_MAX_CHUNK_SIZE;
+ : attrsize - ((totalchunks - 1) * TOAST_MAX_CHUNK_SIZE);
if (chunksize != expected_size)
ereport(ERROR,
(errcode(ERRCODE_DATA_CORRUPTED),
