From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Tue, 24 Feb 2004 01:44:47 +0000 (+0000)
Subject: Don't crash when a rowtype argument to a plpgsql function is NULL.
X-Git-Url: http://waps.l3s.uni-hannover.de/gitweb/?a=commitdiff_plain;h=47282a3830e7785a7b5ad0dc851345c82bd39f92;p=users%2Fbernd%2Fpostgres.git

Don't crash when a rowtype argument to a plpgsql function is NULL.
Per report from Chris Campbell.
---

diff --git a/src/pl/plpgsql/src/pl_exec.c b/src/pl/plpgsql/src/pl_exec.c
index df2ae82226..9a670f252e 100644
--- a/src/pl/plpgsql/src/pl_exec.c
+++ b/src/pl/plpgsql/src/pl_exec.c
@@ -262,10 +262,18 @@ plpgsql_exec_function(PLpgSQL_function * func, FunctionCallInfo fcinfo)
 					HeapTuple	tup;
 					TupleDesc	tupdesc;
 
-					Assert(slot != NULL && !fcinfo->argnull[i]);
-					tup = slot->val;
-					tupdesc = slot->ttc_tupleDescriptor;
-					exec_move_row(&estate, NULL, row, tup, tupdesc);
+					if (!fcinfo->argnull[i])
+					{
+						Assert(slot != NULL);
+						tup = slot->val;
+						tupdesc = slot->ttc_tupleDescriptor;
+						exec_move_row(&estate, NULL, row, tup, tupdesc);
+					}
+					else
+					{
+						/* If arg is null, treat it as an empty row */
+						exec_move_row(&estate, NULL, row, NULL, NULL);
+					}
 				}
 				break;