****************** CONNECT test ******************
 
## connect to bash_(db1,db2,db3) ##
# Connected Databases List (C: current database is '*')
+---+--------------+-----------+---------------------------+-----------------+
| C | connect_name | user_name | target_name(db@host:port) | client_encoding |
+---+--------------+-----------+---------------------------+-----------------+
|   | db1          | pgbash    | pgbash_db1:5432           |                 |
|   | db2          | pgbash    | pgbash_db2:5432           |                 |
| * | db3          | pgbash    | pgbash_db3:5432           |                 |
+---+--------------+-----------+---------------------------+-----------------+
(3 rows)
# Connected Databases List (C: current database is '*')

 C | connect_name | user_name | target_name(db@host:port) | client_encoding 
---+--------------+-----------+---------------------------+-----------------
 * | db1          | pgbash    | pgbash_db1:5432           |   
   | db2          | pgbash    | pgbash_db2:5432           |   
(2 rows)
# Connected Databases List (C: current database is '*')

 C | connect_name | user_name | target_name(db@host:port) | client_encoding 
---+--------------+-----------+---------------------------+-----------------
 * | db1          | pgbash    | pgbash_db1:5432           |   
(1 row)
# Connected Database not exist.
## connect to (db1,db2,db3,db4,db5) ##
# Connected Databases List (C: current database is '*')

 C | connect_name | user_name | target_name(db@host:port) | client_encoding 
---+--------------+-----------+---------------------------+-----------------
   | db1          | pgbash    | pgbash_db1:5432           |   
   | db2          | pgbash    | pgbash_db2:5432           |   
   | db3          | pgbash    | pgbash_db3:5432           |   
   | db4          | pgbash    | pgbash_db4:5432           |   
 * | db5          | pgbash    | pgbash_db5:5432           |   
(5 rows)
# Connected Databases List (C: current database is '*')

 C | connect_name | user_name | target_name(db@host:port) | client_encoding 
---+--------------+-----------+---------------------------+-----------------
   | db1          | pgbash    | pgbash_db1:5432           |   
 * | db2          | pgbash    | pgbash_db2:5432           |   
   | db3          | pgbash    | pgbash_db3:5432           |   
   | db4          | pgbash    | pgbash_db4:5432           |   
   | db5          | pgbash    | pgbash_db5:5432           |   
(5 rows)
# Connected Databases List (C: current database is '*')

 C | connect_name | user_name | target_name(db@host:port) | client_encoding 
---+--------------+-----------+---------------------------+-----------------
 * | db1          | pgbash    | pgbash_db1:5432           |   
   | db3          | pgbash    | pgbash_db3:5432           |   
   | db4          | pgbash    | pgbash_db4:5432           |   
   | db5          | pgbash    | pgbash_db5:5432           |   
(4 rows)
# Connected Database not exist.
****************** CONNECT error test ******************
 
(-402)FATAL 1: Database "dummy_tMUfJ9fGWb" does not exist in the system catalog.
(-232)Error: database not open.
(-232)Error: database not open.
(-232)Error: database not open.