penghuazhou edited a comment on issue #13089:
URL: 
https://github.com/apache/shardingsphere/issues/13089#issuecomment-945677091


   @lanchengx
   
   Do where throw the error message? I have not find in the 
shardingsphere-proxy source code.
   
   <img width="719" alt="企业微信截图_c892bbec-be12-4cf2-84a7-5e3a651f8827" 
src="https://user-images.githubusercontent.com/13001038/137723496-b7aafd93-c222-4f61-aa57-434aabaa4463.png";>
   
   
   [DEBUG] 2021-10-18 19:35:26.968 [nioEventLoopGroup-3-6] 
o.a.s.db.protocol.codec.PacketCodec - Read from client 5b1410b2 : 
             +-------------------------------------------------+
            |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
   +--------+-------------------------------------------------+----------------+
   |00000000| 50 00 00 00 5a 6c 72 75 70 73 63 5f 31 5f 31 00 |P...Zlrupsc_1_1.|
   |00000010| 53 45 4c 45 43 54 20 2a 20 46 52 4f 4d 20 22 71 |SELECT * FROM "q|
   |00000020| 75 61 6c 69 74 79 5f 72 65 63 6f 72 64 5f 72 65 |uality_record_re|
   |00000030| 73 75 6c 74 22 20 57 48 45 52 45 20 61 70 70 5f |sult" WHERE app_|
   |00000040| 69 64 20 3d 20 24 31 20 4f 52 44 45 52 20 42 59 |id = $1 ORDER BY|
   |00000050| 20 69 64 20 64 65 73 63 00 00 00 44 00 00 00 10 | id desc...D....|
   |00000060| 53 6c 72 75 70 73 63 5f 31 5f 31 00 53 00 00 00 |Slrupsc_1_1.S...|
   |00000070| 04                                              |.               |
   +--------+-------------------------------------------------+----------------+
   [DEBUG] 2021-10-18 19:35:27.005 [Connection-6-ThreadExecutor] 
o.a.s.p.f.p.c.PostgreSQLCommandExecutorFactory - Execute packet type: 
PARSE_COMMAND, value: 
org.apache.shardingsphere.db.protocol.postgresql.packet.command.query.binary.parse.PostgreSQLComParsePacket@1c90c152
   [DEBUG] 2021-10-18 19:35:27.095 [Connection-6-ThreadExecutor] 
o.a.s.p.f.p.c.PostgreSQLCommandExecutorFactory - Execute packet type: 
DESCRIBE_COMMAND, value: 
org.apache.shardingsphere.db.protocol.postgresql.packet.command.query.binary.describe.PostgreSQLComDescribePacket@152173a5
   [DEBUG] 2021-10-18 19:35:27.099 [Connection-6-ThreadExecutor] 
o.a.s.p.f.p.c.PostgreSQLCommandExecutorFactory - Execute packet type: 
SYNC_COMMAND, value: 
org.apache.shardingsphere.db.protocol.postgresql.packet.command.query.binary.sync.PostgreSQLComSyncPacket@7cc81896
   [DEBUG] 2021-10-18 19:35:27.100 [nioEventLoopGroup-3-6] 
o.a.s.db.protocol.codec.PacketCodec - Write to client 5b1410b2 : 
             +-------------------------------------------------+
            |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
   +--------+-------------------------------------------------+----------------+
   |00000000| 31 00 00 00 04                                  |1....           |
   +--------+-------------------------------------------------+----------------+
   [DEBUG] 2021-10-18 19:35:27.101 [nioEventLoopGroup-3-6] 
o.a.s.db.protocol.codec.PacketCodec - Write to client 5b1410b2 : 
             +-------------------------------------------------+
            |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
   +--------+-------------------------------------------------+----------------+
   |00000000| 5a 00 00 00 05 49                               |Z....I          |
   +--------+-------------------------------------------------+----------------+


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