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Fix portability problems recently exposed by regression tests on Alphas.

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1. Distinguish cases where a Datum representing a tuple datatype is an OID
from cases where it is a pointer to TupleTableSlot, and make sure we use
the right typlen in each case.
2. Make fetchatt() and related code support 8-byte by-value datatypes on
machines where Datum is 8 bytes.  Centralize knowledge of the available
by-value datatype sizes in two macros in tupmacs.h, so that this will be
easier if we ever have to do it again.
This commit is contained in:
Tom Lane
2000-12-27 23:59:14 +00:00
parent 97799fc475
commit 8609d4abf2
23 changed files with 497 additions and 660 deletions
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16
src/backend/access/common/indextuple.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/common/indextuple.c,v 1.48 2000/12/07 02:00:47 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/access/common/indextuple.c,v 1.49 2000/12/27 23:59:10 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -217,9 +217,9 @@ nocache_index_getattr(IndexTuple tup,
/* This is handled in the macro */
if (att[attnum]->attcacheoff != -1)
{
return (Datum) fetchatt(&(att[attnum]),
(char *) tup + data_off +
att[attnum]->attcacheoff);
return fetchatt(att[attnum],
(char *) tup + data_off +
att[attnum]->attcacheoff);
}
#endif
}
@ -279,8 +279,8 @@ nocache_index_getattr(IndexTuple tup,
{
if (att[attnum]->attcacheoff != -1)
{
return (Datum) fetchatt(&(att[attnum]),
tp + att[attnum]->attcacheoff);
return fetchatt(att[attnum],
tp + att[attnum]->attcacheoff);
}
else if (!IndexTupleAllFixed(tup))
{
@ -332,7 +332,7 @@ nocache_index_getattr(IndexTuple tup,
off += att[j]->attlen;
}
return (Datum) fetchatt(&(att[attnum]), tp + att[attnum]->attcacheoff);
return fetchatt(att[attnum], tp + att[attnum]->attcacheoff);
}
else
{
@ -379,7 +379,7 @@ nocache_index_getattr(IndexTuple tup,
off = att_align(off, att[attnum]->attlen, att[attnum]->attalign);
return (Datum) fetchatt(&att[attnum], tp + off);
return fetchatt(att[attnum], tp + off);
}
}