!6674 B兼容模式下执行show events报语法错误

Merge pull request !6674 from TinyBag/event

src/gausskernel/optimizer/commands/eventcmds.cpp

@@ -942,8 +942,25 @@ StmtResult *SearchEventInfo(ShowEventStmt *stmt)
     StringInfoData buf;
     initStringInfo(&buf);
     appendStringInfo(&buf, "SELECT ");
+
+    char* intervalColName;
+    if (u_sess->attr.attr_sql.dolphin) {
+        intervalColName = "`interval`";
+    } else {
+        intervalColName = "interval";
+    }
     appendStringInfo(&buf,
-                     "job_name,nspname,log_user,priv_user,job_status,start_date,interval,end_date,enable,failure_msg ");
+                     "job_name,"
+                     "nspname,"
+                     "log_user,"
+                     "priv_user,"
+                     "job_status,"
+                     "start_date,"
+                     "%s,"
+                     "end_date,"
+                     "enable,"
+                     "failure_msg ",
+                     intervalColName);
     appendStringInfo(&buf, "FROM PG_JOB ");
 
     /* Concatenate where clause */

src/test/regress/expected/show_events.out

@@ -0,0 +1,51 @@
+create database event_db dbcompatibility 'B';
+\c event_db
+create schema event_s;
+set current_schema = event_s;
+set dolphin.b_compatibility to on;
+create user event_a sysadmin password 'event_123';
+create definer=event_a event e1 on schedule at '2023-01-16 21:05:40' disable do select 1;
+select  job_name, nspname from pg_job where dbname='event_b';
+ job_name | nspname 
+----------+---------
+(0 rows)
+
+show events in a;
+ job_name | schema_name | log_user | priv_user | job_status | start_date | interval | end_date | enable | failure_msg 
+----------+-------------+----------+-----------+------------+------------+----------+----------+--------+-------------
+(0 rows)
+
+show events from a;
+ job_name | schema_name | log_user | priv_user | job_status | start_date | interval | end_date | enable | failure_msg 
+----------+-------------+----------+-----------+------------+------------+----------+----------+--------+-------------
+(0 rows)
+
+show events like 'e';
+ job_name | schema_name | log_user | priv_user | job_status | start_date | interval | end_date | enable | failure_msg 
+----------+-------------+----------+-----------+------------+------------+----------+----------+--------+-------------
+(0 rows)
+
+show events like 'e%';
+ job_name | schema_name | log_user | priv_user | job_status |        start_date        | interval |         end_date         | enable | failure_msg 
+----------+-------------+----------+-----------+------------+--------------------------+----------+--------------------------+--------+-------------
+ e1       | event_s     | event_a  | event_a   | s          | Mon Jan 16 21:05:40 2023 | null     | Sat Jan 01 08:00:00 4000 | f      | 
+(1 row)
+
+show events like 'e_';
+ job_name | schema_name | log_user | priv_user | job_status |        start_date        | interval |         end_date         | enable | failure_msg 
+----------+-------------+----------+-----------+------------+--------------------------+----------+--------------------------+--------+-------------
+ e1       | event_s     | event_a  | event_a   | s          | Mon Jan 16 21:05:40 2023 | null     | Sat Jan 01 08:00:00 4000 | f      | 
+(1 row)
+
+show events where job_name='e1';
+ job_name | schema_name | log_user | priv_user | job_status |        start_date        | interval |         end_date         | enable | failure_msg 
+----------+-------------+----------+-----------+------------+--------------------------+----------+--------------------------+--------+-------------
+ e1       | event_s     | event_a  | event_a   | s          | Mon Jan 16 21:05:40 2023 | null     | Sat Jan 01 08:00:00 4000 | f      | 
+(1 row)
+
+drop event if exists e1;
+drop user if exists event_a;
+reset current_schema;
+drop schema event_s;
+\c postgres
+drop database if exists event_db;

src/test/regress/parallel_schedule0

@@ -1114,6 +1114,9 @@ test: inherits01
 # show_warnings
 test: show_warnings prevent_table_in_sys_schema create_tbl_init_td_check
 
+# show_events
+test: show_events
+
 # test event trigger and object address
 test: test_object_alter
 test: event_trigger object_address

src/test/regress/parallel_schedule0A

@@ -423,6 +423,8 @@ test: temp__4 obsscaninfo
 test: create_seg_table
 #test: copy#
 
+# show_events
+test: show_events
 
 
 # ----------

src/test/regress/sql/show_events.sql

@@ -0,0 +1,23 @@
+create database event_db dbcompatibility 'B';
+\c event_db
+create schema event_s;
+set current_schema = event_s;
+set dolphin.b_compatibility to on;
+
+create user event_a sysadmin password 'event_123';
+create definer=event_a event e1 on schedule at '2023-01-16 21:05:40' disable do select 1;
+
+select  job_name, nspname from pg_job where dbname='event_b';
+show events in a;
+show events from a;
+show events like 'e';
+show events like 'e%';
+show events like 'e_';
+show events where job_name='e1';
+drop event if exists e1;
+drop user if exists event_a;
+
+reset current_schema;
+drop schema event_s;
+\c postgres
+drop database if exists event_db;