1

Author: liushengsong

src/test/isolation2/input/uao/ao_unique_index_vacuum.source

@@ -51,6 +51,11 @@ CREATE TABLE unique_index_vacuum_@amname@(i int UNIQUE) USING @amname@
 INSERT INTO unique_index_vacuum_@amname@ SELECT generate_series(1, 5);
 DELETE FROM unique_index_vacuum_@amname@ WHERE i = 5;
 
+-- Enable debug logging to diagnose flaky compaction behavior.
+SET debug_appendonly_print_compaction = on;
+SET debug_appendonly_print_segfile_choice = on;
+SET debug_appendonly_print_visimap = on;
+
 select gp_inject_fault_infinite('vacuum_ao_after_index_delete', 'skip', dbid)
 	from gp_segment_configuration where role = 'p' AND content <> -1;
 
@@ -64,4 +69,8 @@ SELECT gp_wait_until_triggered_fault('vacuum_ao_after_index_delete', 1, dbid)
 SELECT gp_inject_fault_infinite('vacuum_ao_after_index_delete', 'reset', dbid)
     FROM gp_segment_configuration WHERE role = 'p' AND content <> -1;
 
+RESET debug_appendonly_print_compaction;
+RESET debug_appendonly_print_segfile_choice;
+RESET debug_appendonly_print_visimap;
+
 DROP TABLE unique_index_vacuum_@amname@;

src/test/isolation2/output/uao/ao_unique_index_vacuum.source

@@ -83,6 +83,14 @@ INSERT 5
 DELETE FROM unique_index_vacuum_@amname@ WHERE i = 5;
 DELETE 1
 
+-- Enable debug logging to diagnose flaky compaction behavior.
+SET debug_appendonly_print_compaction = on;
+SET
+SET debug_appendonly_print_segfile_choice = on;
+SET
+SET debug_appendonly_print_visimap = on;
+SET
+
 select gp_inject_fault_infinite('vacuum_ao_after_index_delete', 'skip', dbid) from gp_segment_configuration where role = 'p' AND content <> -1;
  gp_inject_fault_infinite 
 --------------------------
@@ -112,5 +120,12 @@ SELECT gp_inject_fault_infinite('vacuum_ao_after_index_delete', 'reset', dbid) F
  Success:                 
 (3 rows)
 
+RESET debug_appendonly_print_compaction;
+RESET
+RESET debug_appendonly_print_segfile_choice;
+RESET
+RESET debug_appendonly_print_visimap;
+RESET
+
 DROP TABLE unique_index_vacuum_@amname@;
 DROP