mycat1.6.7.6连接postgresql问题

[lisihan0607]

1、bug描述
配置postgresql后日志报错如下：
2023-05-09 14:57:25.967 WARN [BusinessExecutor4] (io.mycat.backend.mysql.nio.handler.SingleNodeHandler.backConnectionErr(SingleNodeHandler.java:287)) - execute sql err : errno:0 ERROR: missing FROM-clause entry for table "session"
Position: 99
Where: referenced column: auto_increment_increment con:JDBCConnection [id=24,autocommit=true,pool=io.mycat.backend.jdbc.JDBCDatasource@32c432cb, schema=smc, dbType=POSTGRESQL, oldSchema=smc, packetId=1, txIsolation=0, running=false, borrowed=true, host=192.168.xxx.xxx, port=xxx, con=org.postgresql.jdbc4.Jdbc4Connection@89e10, respHandler=SingleNodeHandler [node=xxx{/* mysql-connector-java-5.1.48 ( Revision: 29734982609c32d3ab7e5cac2e6acee69ff6b4aa ) /SELECT @@session.auto_increment_increment AS auto_increment_increment, @@character_set_client AS character_set_client, @@character_set_connection AS character_set_connection, @@character_set_results AS character_set_results, @@character_set_server AS character_set_server, @@collation_server AS collation_server, @@collation_connection AS collation_connection, @@init_connect AS init_connect, @@interactive_timeout AS interactive_timeout, @@license AS license, @@lower_case_table_names AS lower_case_table_names, @@max_allowed_packet AS max_allowed_packet, @@net_buffer_length AS net_buffer_length, @@net_write_timeout AS net_write_timeout, @@performance_schema AS performance_schema, @@sql_mode AS sql_mode, @@system_time_zone AS system_time_zone, @@time_zone AS time_zone, @@transaction_isolation AS transaction_isolation, @@wait_timeout AS wait_timeout}, packetId=1], attachement=xxx{/ mysql-connector-java-5.1.48 ( Revision: 29734982609c32d3ab7e5cac2e6acee69ff6b4aa ) */SELECT @@session.auto_increment_increment AS auto_increment_increment, @@character_set_client AS character_set_client, @@character_set_connection AS character_set_connection, @@character_set_results AS character_set_results, @@character_set_server AS character_set_server, @@collation_server AS collation_server, @@collation_connection AS collation_connection, @@init_connect AS init_connect, @@interactive_timeout AS interactive_timeout, @@license AS license, @@lower_case_table_names AS lower_case_table_names, @@max_allowed_packet AS max_allowed_packet, @@net_buffer_length AS net_buffer_length, @@net_write_timeout AS net_write_timeout, @@performance_schema AS performance_schema, @@sql_mode AS sql_mode, @@system_time_zone AS system_time_zone, @@time_zone AS time_zone, @@transaction_isolation AS transaction_isolation, @@wait_timeout AS wait_timeout}, headerOutputed=false, modifiedSQLExecuted=false, startTime=1683615445270, lastTime=1683615445903, isSpark=false, processor=io.mycat.net.NIOProcessor@4b2f4d52] frontend host:192.168.xxx.xxx/55542/root
给postgresq发了mysql的sql执行导致报错？
之前用的1.6没有这个问题
近期想修改mycat模拟的mysql版本，发现只能升级到1.6.7.6才能使用mysql8.x，但升级后就出现了上述报错

2、版本号(非常重要)
v 1.6.7.6

3、相关表的配置信息
schema.xml (需包含表的配置信息，mysql的连接驱动是JDBC还是native方式)
rule.xml (涉及到的路由函数)
server.xml(可选)

4、操作步骤

1. '...'
2. '....'
3. ...

5、期望结果
A clear and concise description of what you expected to happen.

6、实际结果
A clear and concise description of what actually happened.

7、额外信息
Add any other context about the problem here.

[hedong0112]

这项目没维护了，什么postgresql、oracle、sqlserver、达梦之类的，适配一堆bug没人解决，也就mysql还能用

[yuyinw]

我这边测试，报找不到postgres驱动的问题：java.sql.SQLException: No suitable driver found for jdbc:postgresql.....

[yuyinw]

我这边测试，报找不到postgres驱动的问题：java.sql.SQLException: No suitable driver found for jdbc:postgresql.....

替换postgres驱动解决

[CXLGai]

请问一下楼主解决了吗？我也遇到和你相同的问题

[yuyinw]

请问这个问题有遇到过么：mycat ERROR: column "version_comment" does not exist