diff -U3 /tmp/cirrus-ci-build/src/test/modules/injection_points/expected/reindex_concurrently_upsert.out /tmp/cirrus-ci-build/src/test/modules/injection_points/output_iso/results/reindex_concurrently_upsert.out
--- /tmp/cirrus-ci-build/src/test/modules/injection_points/expected/reindex_concurrently_upsert.out	2024-08-20 02:00:40.820973863 +0000
+++ /tmp/cirrus-ci-build/src/test/modules/injection_points/output_iso/results/reindex_concurrently_upsert.out	2024-08-20 02:08:19.161139351 +0000
@@ -63,6 +63,7 @@
 (1 row)
 
 step s2_start_upsert: <... completed>
+ERROR:  duplicate key value violates unique constraint "tbl_pkey_ccold"
 step s4_wakeup_to_set_dead: 
 	SELECT injection_points_wakeup('reindex_relation_concurrently_before_set_dead');
 	SELECT injection_points_detach('reindex_relation_concurrently_before_set_dead');
@@ -142,6 +143,7 @@
 (1 row)
 
 step s2_start_upsert: <... completed>
+ERROR:  duplicate key value violates unique constraint "tbl_pkey"
 step s4_wakeup_to_set_dead: 
 	SELECT injection_points_wakeup('reindex_relation_concurrently_before_set_dead');
 	SELECT injection_points_detach('reindex_relation_concurrently_before_set_dead');
@@ -236,3 +238,4 @@
 
 step s3_start_reindex: <... completed>
 step s2_start_upsert: <... completed>
+ERROR:  duplicate key value violates unique constraint "tbl_pkey_ccold"
diff -U3 /tmp/cirrus-ci-build/src/test/modules/injection_points/expected/index_concurrently_upsert.out /tmp/cirrus-ci-build/src/test/modules/injection_points/output_iso/results/index_concurrently_upsert.out
--- /tmp/cirrus-ci-build/src/test/modules/injection_points/expected/index_concurrently_upsert.out	2024-08-20 02:00:40.820973863 +0000
+++ /tmp/cirrus-ci-build/src/test/modules/injection_points/output_iso/results/index_concurrently_upsert.out	2024-08-20 02:08:19.541145776 +0000
@@ -78,3 +78,4 @@
 (1 row)
 
 step s1_start_upsert: <... completed>
+ERROR:  duplicate key value violates unique constraint "tbl_pkey_duplicate"