[fix](function) fix aes_encrypt/decrypt has wrong results in view

[xy720]

Proposed changes

This commit fix 3 problems:

Before:

case 1: No matching function in view.

MySQL [test]> create view test_view as select 1,to_base64(AES_ENCRYPT('doris','doris'));
Query OK, 0 rows affected (0.01 sec)

MySQL [test]> select * from test_view;
ERROR 1105 (HY000): errCode = 2, detailMessage = No matching function with signature: aes_encrypt(varchar(-1)).
MySQL [test]> show create table test_view;

case 2: The secret key is being shown beside '***' in result header

MySQL [test]> SELECT aes_decrypt(   from_base64("EXp7k7M9Zv1mIwPpno28Hg=="),   '17IMZrGdwWf2Piy8',   'II2HLtihr5TQpQgR'  , 'AES_128_CBC');
+---------------------------------------------------------------------------------------------------+
| aes_decrypt(from_base64('EXp7k7M9Zv1mIwPpno28Hg=='), '***''17IMZrGdwWf2Piy8', 'II2HLtihr5TQpQgR') |
+---------------------------------------------------------------------------------------------------+
| 17777208882                                                                                       |
+---------------------------------------------------------------------------------------------------+
1 row in set (0.03 sec)

case 3: Wrong result in view

MySQL [test]> set block_encryption_mode='AES_128_CBC';
Query OK, 0 rows affected (0.01 sec)

MySQL [test]> CREATE VIEW client_user_test AS SELECT aes_decrypt(   from_base64('EXp7k7M9Zv1mIwPpno28Hg=='),   '17IMZrGdwWf2Piy8',   'II2HLtihr5TQpQgR'  );
Query OK, 0 rows affected (0.04 sec)

MySQL [test]> show create view client_user_test;
+------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+
| View             | Create View                                                                                                                                                                                                                                                       | character_set_client | collation_connection |
+------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+
| client_user_test | CREATE VIEW `client_user_test` COMMENT 'VIEW' AS SELECT aes_decrypt(from_base64('EXp7k7M9Zv1mIwPpno28Hg=='), '***''17IMZrGdwWf2Piy8', 'II2HLtihr5TQpQgR') AS `aes_decrypt(from_base64('EXp7k7M9Zv1mIwPpno28Hg=='), '***''17IMZrGdwWf2Piy8', 'II2HLtihr5TQpQgR')`; | utf8                 | utf8_general_ci      |
+------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+
1 row in set (0.01 sec)

MySQL [test]> select * from client_user_test;
+---------------------------------------------------------------------------------------------------+
| aes_decrypt(from_base64('EXp7k7M9Zv1mIwPpno28Hg=='), '***''17IMZrGdwWf2Piy8', 'II2HLtihr5TQpQgR') |
+---------------------------------------------------------------------------------------------------+
| NULL                                                                                              |
+---------------------------------------------------------------------------------------------------+
1 row in set (0.95 sec)

After:

case 1:

MySQL [test]> create view test_view as select 1,to_base64(AES_ENCRYPT('doris','doris'));
Query OK, 0 rows affected (0.01 sec)

MySQL [test]> select * from test_view;
+------+------------------------------------------+
| 1    | to_base64(aes_encrypt('doris', 'doris')) |
+------+------------------------------------------+
|    1 | 4x0fdjDNBZAJxCD7qm/EHg==                 |
+------+------------------------------------------+
1 row in set (0.04 sec)

case 2:

MySQL [test]> SELECT aes_decrypt(   from_base64("EXp7k7M9Zv1mIwPpno28Hg=="),   '17IMZrGdwWf2Piy8',   'II2HLtihr5TQpQgR'  , 'AES_128_CBC');
+------------------------------------------------------------------------------------------------+
| aes_decrypt(from_base64('EXp7k7M9Zv1mIwPpno28Hg=='), '***', 'II2HLtihr5TQpQgR', 'AES_128_CBC') |
+------------------------------------------------------------------------------------------------+
| 17777208882                                                                                    |
+------------------------------------------------------------------------------------------------+
1 row in set (0.04 sec)

case 3:

MySQL [test]> set block_encryption_mode='AES_128_CBC';Query OK, 0 rows affected (0.01 sec)

MySQL [test]> CREATE VIEW client_user_test AS SELECT aes_decrypt(   from_base64('EXp7k7M9Zv1mIwPpno28Hg=='),   '17IMZrGdwWf2Piy8',   'II2HLtihr5TQpQgR'  );
Query OK, 0 rows affected (0.00 sec)

MySQL [test]> show create view client_user_test;
+------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+
| View             | Create View                                                                                                                                                                                                                                                                           | character_set_client | collation_connection |
+------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+
| client_user_test | CREATE VIEW `client_user_test` COMMENT 'VIEW' AS SELECT aes_decrypt(from_base64('EXp7k7M9Zv1mIwPpno28Hg=='), '17IMZrGdwWf2Piy8', 'II2HLtihr5TQpQgR', 'AES_128_CBC') AS `aes_decrypt(from_base64('EXp7k7M9Zv1mIwPpno28Hg=='), '17IMZrGdwWf2Piy8', 'II2HLtihr5TQpQgR', 'AES_128_CBC')`; | utf8                 | utf8_general_ci      |
+------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+
1 row in set (0.00 sec)

MySQL [test]> select * from client_user_test;
+-------------------------------------------------------------------------------------------------------------+
| aes_decrypt(from_base64('EXp7k7M9Zv1mIwPpno28Hg=='), '17IMZrGdwWf2Piy8', 'II2HLtihr5TQpQgR', 'AES_128_CBC') |
+-------------------------------------------------------------------------------------------------------------+
| 17777208882                                                                                                 |
+-------------------------------------------------------------------------------------------------------------+
1 row in set (0.04 sec)

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[xy720]

run buildall

[cambyzju]

LGTM

[github-actions]

PR approved by at least one committer and no changes requested.

[github-actions]

PR approved by anyone and no changes requested.

[lide-reed]

LGTM