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Clean up comments to be careful about the distinction between variable-

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width types and varlena types, since with the introduction of CSTRING as
a more-or-less-real type, these concepts aren't identical.  I've tried to
use varlena consistently to denote datatypes with typlen = -1, ie, they
have a length word and are potentially TOASTable; while the term variable
width covers both varlena and cstring (and, perhaps, someday other types
with other rules for computing the actual width).  No code changes in this
commit except for renaming a couple macros.
This commit is contained in:
Tom Lane
2002-08-25 17:20:01 +00:00
parent d46172e4fa
commit 58de480999
11 changed files with 66 additions and 68 deletions
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10
src/backend/libpq/be-fsstubs.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/libpq/be-fsstubs.c,v 1.61 2002/06/20 20:29:28 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/libpq/be-fsstubs.c,v 1.62 2002/08/25 17:20:01 tgl Exp $
*
* NOTES
* This should be moved to a more appropriate place. It is here
@@ -313,24 +313,24 @@ loread(PG_FUNCTION_ARGS)
{
int32 fd = PG_GETARG_INT32(0);
int32 len = PG_GETARG_INT32(1);
struct varlena *retval;
bytea *retval;
int totalread;
if (len < 0)
len = 0;
retval = (struct varlena *) palloc(VARHDRSZ + len);
retval = (bytea *) palloc(VARHDRSZ + len);
totalread = lo_read(fd, VARDATA(retval), len);
VARATT_SIZEP(retval) = totalread + VARHDRSZ;
PG_RETURN_POINTER(retval);
PG_RETURN_BYTEA_P(retval);
}
Datum
lowrite(PG_FUNCTION_ARGS)
{
int32 fd = PG_GETARG_INT32(0);
struct varlena *wbuf = PG_GETARG_VARLENA_P(1);
bytea *wbuf = PG_GETARG_BYTEA_P(1);
int bytestowrite;
int totalwritten;