diff -U3 /tmp/cirrus-ci-build/src/test/regress/expected/plancache.out /tmp/cirrus-ci-build/src/test/recovery/tmp_check/results/plancache.out
--- /tmp/cirrus-ci-build/src/test/regress/expected/plancache.out	2025-08-23 17:08:06.860731060 +0000
+++ /tmp/cirrus-ci-build/src/test/recovery/tmp_check/results/plancache.out	2025-08-23 17:16:05.680021859 +0000
@@ -398,3 +398,36 @@
 (1 row)
 
 drop table test_mode;
+-- Check the interference between plan_cache_mode and cursor_options
+-- EXPLAIN (COSTS OFF, GENERIC_PLAN)
+SELECT prepare_spi_plan(NULL, NULL, NULL); -- ERROR
+ERROR:  query text cannot be null
+SELECT prepare_spi_plan(
+  'EXPLAIN (COSTS OFF) SELECT * FROM pcachetest WHERE q1 = $1',
+  NULL, 'integer') AS p1 \gset
+SELECT prepare_spi_plan(
+  'SELECT * FROM pcachetest WHERE q1 = $1 OR q1 = $2',
+  NULL, 'integer', NULL); --ERROR
+ERROR:  type name cannot be NULL
+SELECT prepare_spi_plan(
+  'SELECT * FROM pcachetest WHERE q1 = $1 OR q1 = 3',
+  NULL, 'integer', 'numeric') AS p2 \gset
+SELECT execute_spi_plan(:p1, 'generic_plan', 42);
+      execute_spi_plan      
+----------------------------
+ ("Seq Scan on pcachetest")
+ ("  Filter: (q1 = 42)")
+(2 rows)
+
+SELECT free_spi_plan(:p1);
+ free_spi_plan 
+---------------
+ 
+(1 row)
+
+SELECT free_spi_plan(:p2);
+ free_spi_plan 
+---------------
+ 
+(1 row)
+