--- sql/pgtap.sql
+++ sql/pgtap.sql
@@ -2258,13 +2258,13 @@
 CREATE OR REPLACE FUNCTION _constraint ( NAME, NAME, CHAR, NAME[], TEXT, TEXT )
 RETURNS TEXT AS $$
 DECLARE
-    akey NAME[];
+    rec  record;
     keys TEXT[] := '{}';
     have TEXT;
 BEGIN
-    FOR akey IN SELECT * FROM _keys($1, $2, $3) LOOP
-        IF akey = $4 THEN RETURN pass($5); END IF;
-        keys = keys || akey::text;
+    FOR rec IN SELECT * FROM _keys($1, $2, $3) AS b(a) LOOP
+        IF rec.a = $4 THEN RETURN pass($5); END IF;
+        keys = keys || rec.a::text;
     END LOOP;
     IF array_upper(keys, 0) = 1 THEN
         have := 'No ' || $6 || ' constraints';
@@ -2282,13 +2282,13 @@
 CREATE OR REPLACE FUNCTION _constraint ( NAME, CHAR, NAME[], TEXT, TEXT )
 RETURNS TEXT AS $$
 DECLARE
-    akey NAME[];
+    rec  record;
     keys TEXT[] := '{}';
     have TEXT;
 BEGIN
-    FOR akey IN SELECT * FROM _keys($1, $2) LOOP
-        IF akey = $3 THEN RETURN pass($4); END IF;
-        keys = keys || akey::text;
+    FOR rec IN SELECT * FROM _keys($1, $2) AS b(a) LOOP
+        IF rec.a = $3 THEN RETURN pass($4); END IF;
+        keys = keys || rec.a::text;
     END LOOP;
     IF array_upper(keys, 0) = 1 THEN
         have := 'No ' || $5 || ' constraints';
@@ -6158,7 +6158,7 @@
 CREATE OR REPLACE FUNCTION _runem( text[], boolean )
 RETURNS SETOF TEXT AS $$
 DECLARE
-    tap    text;
+    rec    record;
     lbound int := array_lower($1, 1);
 BEGIN
     IF lbound IS NULL THEN RETURN; END IF;
@@ -6166,8 +6166,8 @@
         -- Send the name of the function to diag if warranted.
         IF $2 THEN RETURN NEXT diag( $1[i] || '()' ); END IF;
         -- Execute the tap function and return its results.
-        FOR tap IN EXECUTE 'SELECT * FROM ' || $1[i] || '()' LOOP
-            RETURN NEXT tap;
+        FOR rec IN EXECUTE 'SELECT * FROM ' || $1[i] || '() AS b(a)' LOOP
+            RETURN NEXT rec.a;
         END LOOP;
     END LOOP;
     RETURN;
@@ -6236,7 +6236,7 @@
     setup    ALIAS FOR $3;
     teardown ALIAS FOR $4;
     tests    ALIAS FOR $5;
-    tap      TEXT;
+    rec      RECORD;
     tfaild   INTEGER := 0;
     ffaild   INTEGER := 0;
     tnumb    INTEGER := 0;
@@ -6246,7 +6246,7 @@
     BEGIN
         -- No plan support.
         PERFORM * FROM no_plan();
-        FOR tap IN SELECT * FROM _runem(startup, false) LOOP RETURN NEXT tap; END LOOP;
+        FOR rec IN SELECT * FROM _runem(startup, false) AS b(a) LOOP RETURN NEXT rec.a; END LOOP;
     EXCEPTION
         -- Catch all exceptions and simply rethrow custom exceptions. This
         -- will roll back everything in the above block.
@@ -6285,18 +6285,18 @@
         BEGIN
             BEGIN
                 -- Run the setup functions.
-                FOR tap IN SELECT * FROM _runem(setup, false) LOOP
-                    RETURN NEXT regexp_replace(tap, E'(^|\n)', E'\\1    ', 'g');
+                FOR rec IN SELECT * FROM _runem(setup, false) AS b(a) LOOP
+                    RETURN NEXT regexp_replace(rec.a, E'(^|\n)', E'\\1    ', 'g');
                 END LOOP;
 
                 -- Run the actual test function.
-                FOR tap IN EXECUTE 'SELECT * FROM ' || tests[i] || '()' LOOP
-                    RETURN NEXT regexp_replace(tap, E'(^|\n)', E'\\1    ', 'g');
+                FOR rec IN EXECUTE 'SELECT * FROM ' || tests[i] || '() AS b(a)' LOOP
+                    RETURN NEXT regexp_replace(rec.a, E'(^|\n)', E'\\1    ', 'g');
                 END LOOP;
 
                 -- Run the teardown functions.
-                FOR tap IN SELECT * FROM _runem(teardown, false) LOOP
-                    RETURN NEXT regexp_replace(tap, E'(^|\n)', E'\\1    ', 'g');
+                FOR rec IN SELECT * FROM _runem(teardown, false) AS b(a) LOOP
+                    RETURN NEXT regexp_replace(rec.a, E'(^|\n)', E'\\1    ', 'g');
                 END LOOP;
 
                 -- Emit the plan.
@@ -6352,11 +6352,11 @@
     END LOOP;
 
     -- Run the shutdown functions.
-    FOR tap IN SELECT * FROM _runem(shutdown, false) LOOP RETURN NEXT tap; END LOOP;
+    FOR rec IN SELECT * FROM _runem(shutdown, false) AS b(a) LOOP RETURN NEXT rec.a; END LOOP;
 
     -- Finish up.
-    FOR tap IN SELECT * FROM _finish( COALESCE(_get('curr_test'), 0), 0, tfaild ) LOOP
-        RETURN NEXT tap;
+    FOR rec IN SELECT * FROM _finish( COALESCE(_get('curr_test'), 0), 0, tfaild ) AS b(a) LOOP
+        RETURN NEXT rec.a;
     END LOOP;
 
     -- Clean up and return.
@@ -7614,7 +7614,7 @@
 DECLARE
     rec    RECORD;
 BEGIN
-    EXECUTE _query($1) INTO rec;
+    FOR rec in EXECUTE _query($1) LOOP END LOOP;
     IF NOT textin(record_out(rec)) IS DISTINCT FROM textin(record_out($2))
         THEN RETURN ok(true, $3);
     END IF;