修复审计中删除触发器记录object_name的乱码问题

src/gausskernel/process/tcop/auditfuncs.cpp

@@ -1157,7 +1157,7 @@ static void pgaudit_process_drop_objects(Node* node, const char* querystring)
                 pgaudit_ddl_schema(objectname, querystring);
             } break;
             case OBJECT_TRIGGER: {
-                objectname = strVal(lfirst(list_tail(names)));
+                objectname = strVal(lfirst(list_tail((List*)lfirst(list_tail(names)))));
                 pgaudit_ddl_trigger(objectname, querystring);
             } break;
             case OBJECT_FUNCTION: {

src/test/regress/input/hw_audit_detailinfo.source

@@ -32,12 +32,39 @@ SELECT detail_info FROM pg_query_audit('2021-12-17 9:30:00', '2031-12-12 22:00:0
 
 -- DQL
 \! @abs_bindir@/gs_guc reload -Z datanode -D @abs_srcdir@/tmp_check/datanode1/ -c "audit_dml_state_select=1" > /dev/null 2>&1
+\! @abs_bindir@/gs_guc reload -Z datanode -D @abs_srcdir@/tmp_check/datanode1/ -c "audit_system_object=127" > /dev/null 2>&1
 select pg_sleep(1);
 show audit_dml_state_select;
 create table t3(id int);
 select * from t3;
 SELECT detail_info FROM pg_query_audit('2021-12-17 9:30:00', '2031-12-12 22:00:00') where type='dml_action_select' and object_name='t3';
 
+-- trigger test
+CREATE TABLE test_trigger_src_tbl(id1 INT, id2 INT,id3 INT);
+CREATE TABLE test_trigger_des_tbl(id1 INT, id2 INT, id3 INT);
+CREATE OR REPLACE FUNCTION tri_insert_func() RETURNS TRIGGER AS
+$$
+DECLARE
+BEGIN
+    INSERT INTO test_trigger_des_tbl VALUES(NEW.id1, NEW.id2,
+    NEW.id3);
+    RETURN NEW;
+END
+$$ LANGUAGE PLPGSQL;
+CREATE TRIGGER insert_trigger
+   BEFORE INSERT ON test_trigger_src_tbl
+   FOR EACH ROW
+   EXECUTE PROCEDURE tri_insert_func();
+ALTER TRIGGER insert_trigger ON test_trigger_src_tbl RENAME TO
+insert_trigger_renamed;
+DROP TRIGGER insert_trigger_renamed ON test_trigger_src_tbl;
+DROP FUNCTION tri_insert_func();
+DROP TABLE test_trigger_src_tbl;
+DROP TABLE test_trigger_des_tbl;
+SELECT object_name FROM pg_query_audit('2021-12-17 9:30:00', '2031-12-12 22:00:00') where object_name like '%insert_trigger%';
+
+\! @abs_bindir@/gs_guc reload -Z datanode -D @abs_srcdir@/tmp_check/datanode1/ -c "audit_system_object" > /dev/null 2>&1
+
 -- 关闭xid开关
 \! @abs_bindir@/gs_guc reload -Z datanode -D @abs_srcdir@/tmp_check/datanode1/ -c "audit_xid_info=0" > /dev/null 2>&1
 \! @abs_bindir@/gs_guc reload -Z datanode -D @abs_srcdir@/tmp_check/datanode1/ -c "audit_dml_state=0" > /dev/null 2>&1

src/test/regress/output/hw_audit_detailinfo.source

@@ -76,6 +76,7 @@ SELECT detail_info FROM pg_query_audit('2021-12-17 9:30:00', '2031-12-12 22:00:0
 
 -- DQL
 \! @abs_bindir@/gs_guc reload -Z datanode -D @abs_srcdir@/tmp_check/datanode1/ -c "audit_dml_state_select=1" > /dev/null 2>&1
+\! @abs_bindir@/gs_guc reload -Z datanode -D @abs_srcdir@/tmp_check/datanode1/ -c "audit_system_object=127" > /dev/null 2>&1
 select pg_sleep(1);
  pg_sleep 
 ----------
@@ -100,6 +101,37 @@ SELECT detail_info FROM pg_query_audit('2021-12-17 9:30:00', '2031-12-12 22:00:0
  xid=XIDNUM, select * from t3;
 (1 row)
 
+-- trigger test
+CREATE TABLE test_trigger_src_tbl(id1 INT, id2 INT,id3 INT);
+CREATE TABLE test_trigger_des_tbl(id1 INT, id2 INT, id3 INT);
+CREATE OR REPLACE FUNCTION tri_insert_func() RETURNS TRIGGER AS
+$$
+DECLARE
+BEGIN
+    INSERT INTO test_trigger_des_tbl VALUES(NEW.id1, NEW.id2,
+    NEW.id3);
+    RETURN NEW;
+END
+$$ LANGUAGE PLPGSQL;
+CREATE TRIGGER insert_trigger
+   BEFORE INSERT ON test_trigger_src_tbl
+   FOR EACH ROW
+   EXECUTE PROCEDURE tri_insert_func();
+ALTER TRIGGER insert_trigger ON test_trigger_src_tbl RENAME TO
+insert_trigger_renamed;
+DROP TRIGGER insert_trigger_renamed ON test_trigger_src_tbl;
+DROP FUNCTION tri_insert_func();
+DROP TABLE test_trigger_src_tbl;
+DROP TABLE test_trigger_des_tbl;
+SELECT object_name FROM pg_query_audit('2021-12-17 9:30:00', '2031-12-12 22:00:00') where object_name like '%insert_trigger%';
+      object_name       
+------------------------
+ insert_trigger
+ insert_trigger
+ insert_trigger_renamed
+(3 rows)
+
+\! @abs_bindir@/gs_guc reload -Z datanode -D @abs_srcdir@/tmp_check/datanode1/ -c "audit_system_object" > /dev/null 2>&1
 -- 关闭xid开关
 \! @abs_bindir@/gs_guc reload -Z datanode -D @abs_srcdir@/tmp_check/datanode1/ -c "audit_xid_info=0" > /dev/null 2>&1
 \! @abs_bindir@/gs_guc reload -Z datanode -D @abs_srcdir@/tmp_check/datanode1/ -c "audit_dml_state=0" > /dev/null 2>&1