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Repair problems with the result of lookup_rowtype_tupdesc() possibly being

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discarded by cache flush while still in use.  This is a minimal patch that
just copies the tupdesc anywhere it could be needed across a flush.  Applied
to back branches only; Neil Conway is working on a better long-term solution
for HEAD.
This commit is contained in:
Tom Lane
2006-01-17 17:33:23 +00:00
parent afe91cae6c
commit 7b3d9367b4
11 changed files with 49 additions and 17 deletions
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4
src/pl/tcl/pltcl.c
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@ -31,7 +31,7 @@
* ENHANCEMENTS, OR MODIFICATIONS.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/pl/tcl/pltcl.c,v 1.98.2.1 2005/11/22 18:23:31 momjian Exp $
* $PostgreSQL: pgsql/src/pl/tcl/pltcl.c,v 1.98.2.2 2006/01/17 17:33:23 tgl Exp $
*
**********************************************************************/
@ -531,6 +531,7 @@ pltcl_func_handler(PG_FUNCTION_ARGS)
tupType = HeapTupleHeaderGetTypeId(td);
tupTypmod = HeapTupleHeaderGetTypMod(td);
tupdesc = lookup_rowtype_tupdesc(tupType, tupTypmod);
tupdesc = CreateTupleDescCopy(tupdesc);
/* Build a temporary HeapTuple control structure */
tmptup.t_len = HeapTupleHeaderGetDatumLength(td);
tmptup.t_data = td;
@ -539,6 +540,7 @@ pltcl_func_handler(PG_FUNCTION_ARGS)
pltcl_build_tuple_argument(&tmptup, tupdesc, &list_tmp);
Tcl_DStringAppendElement(&tcl_cmd,
Tcl_DStringValue(&list_tmp));
FreeTupleDesc(tupdesc);
}
}
else