strongduanmu edited a comment on issue #10635:
URL:
https://github.com/apache/shardingsphere/issues/10635#issuecomment-853797289
This exception is an error reported by calcite query optimization.
@tristaZero Can you help look at this problem?
```
[INFO ] 2021-06-03 19:24:19.266 [Connection-2-ThreadExecutor]
ShardingSphere-SQL - Logic SQL: SELECT c_discount, c_last, c_credit, w_tax FROM
bmsql_customer c JOIN bmsql_warehouse w ON (w.w_id = c.c_w_id) WHERE c_w_id = 1
AND c_d_id = 3 AND c_id = 1912;
[INFO ] 2021-06-03 19:24:19.269 [Connection-2-ThreadExecutor]
ShardingSphere-SQL - SQLStatement:
PostgreSQLSelectStatement(limit=Optional.empty, lock=Optional.empty,
window=Optional.empty)
[INFO ] 2021-06-03 19:24:19.269 [Connection-2-ThreadExecutor]
ShardingSphere-SQL - Actual SQL: ds_0 ::: SELECT c_discount, c_last, c_credit,
w_tax FROM bmsql_customer c JOIN bmsql_warehouse w ON (w.w_id = c.c_w_id) WHERE
c_w_id = 1 AND c_d_id = 3 AND c_id = 1912;
[ERROR] 2021-06-03 19:24:19.826 [Connection-2-ThreadExecutor]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.sql.SQLException: Error while preparing statement [SELECT c_discount,
c_last, c_credit, w_tax FROM bmsql_customer c JOIN bmsql_warehouse w ON (w.w_id
= c.c_w_id) WHERE c_w_id = 1 AND c_d_id = 3 AND c_id = 1912;]
at org.apache.calcite.avatica.Helper.createException(Helper.java:56)
at org.apache.calcite.avatica.Helper.createException(Helper.java:41)
at
org.apache.calcite.jdbc.CalciteConnectionImpl.prepareStatement_(CalciteConnectionImpl.java:220)
at
org.apache.calcite.jdbc.CalciteConnectionImpl.prepareStatement(CalciteConnectionImpl.java:202)
at
org.apache.calcite.jdbc.CalciteConnectionImpl.prepareStatement(CalciteConnectionImpl.java:93)
at
org.apache.calcite.avatica.AvaticaConnection.prepareStatement(AvaticaConnection.java:175)
at
org.apache.shardingsphere.infra.executor.sql.federate.execute.FederateJDBCExecutor.execute(FederateJDBCExecutor.java:85)
at
org.apache.shardingsphere.infra.executor.sql.federate.execute.FederateJDBCExecutor.executeQuery(FederateJDBCExecutor.java:68)
at
org.apache.shardingsphere.proxy.backend.communication.ProxySQLExecutor.federateExecute(ProxySQLExecutor.java:153)
at
org.apache.shardingsphere.proxy.backend.communication.ProxySQLExecutor.execute(ProxySQLExecutor.java:123)
at
org.apache.shardingsphere.proxy.backend.communication.ProxySQLExecutor.execute(ProxySQLExecutor.java:114)
at
org.apache.shardingsphere.proxy.backend.communication.ProxyLockEngine.doExecute(ProxyLockEngine.java:103)
at
org.apache.shardingsphere.proxy.backend.communication.ProxyLockEngine.execute(ProxyLockEngine.java:81)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:98)
at
org.apache.shardingsphere.proxy.backend.text.data.impl.SchemaAssignedDatabaseBackendHandler.execute(SchemaAssignedDatabaseBackendHandler.java:55)
at
org.apache.shardingsphere.proxy.frontend.postgresql.command.query.text.PostgreSQLComQueryExecutor.execute(PostgreSQLComQueryExecutor.java:63)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:93)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:71)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: parse failed: Encountered ";" at line
1, column 159.
Was expecting one of:
<EOF>
"EXCEPT" ...
"FETCH" ...
"GROUP" ...
"HAVING" ...
"INTERSECT" ...
"LIMIT" ...
"OFFSET" ...
"ORDER" ...
"MINUS" ...
"UNION" ...
"WINDOW" ...
"." ...
"NOT" ...
"IN" ...
"<" ...
"<=" ...
">" ...
">=" ...
"=" ...
"<>" ...
"!=" ...
"BETWEEN" ...
"LIKE" ...
"SIMILAR" ...
"+" ...
"-" ...
"*" ...
"/" ...
"%" ...
"||" ...
"AND" ...
"OR" ...
"IS" ...
"MEMBER" ...
"SUBMULTISET" ...
"CONTAINS" ...
"OVERLAPS" ...
"EQUALS" ...
"PRECEDES" ...
"SUCCEEDS" ...
"IMMEDIATELY" ...
"MULTISET" ...
"[" ...
"FORMAT" ...
at
org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:623)
at
org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:508)
at
org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:478)
at
org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:231)
at
org.apache.calcite.jdbc.CalciteConnectionImpl.prepareStatement_(CalciteConnectionImpl.java:213)
... 18 common frames omitted
Caused by: org.apache.calcite.sql.parser.SqlParseException: Encountered ";"
at line 1, column 159.
Was expecting one of:
<EOF>
"EXCEPT" ...
"FETCH" ...
"GROUP" ...
"HAVING" ...
"INTERSECT" ...
"LIMIT" ...
"OFFSET" ...
"ORDER" ...
"MINUS" ...
"UNION" ...
"WINDOW" ...
"." ...
"NOT" ...
"IN" ...
"<" ...
"<=" ...
">" ...
">=" ...
"=" ...
"<>" ...
"!=" ...
"BETWEEN" ...
"LIKE" ...
"SIMILAR" ...
"+" ...
"-" ...
"*" ...
"/" ...
"%" ...
"||" ...
"AND" ...
"OR" ...
"IS" ...
"MEMBER" ...
"SUBMULTISET" ...
"CONTAINS" ...
"OVERLAPS" ...
"EQUALS" ...
"PRECEDES" ...
"SUCCEEDS" ...
"IMMEDIATELY" ...
"MULTISET" ...
"[" ...
"FORMAT" ...
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.convertException(SqlParserImpl.java:388)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.normalizeException(SqlParserImpl.java:151)
at
org.apache.calcite.sql.parser.SqlParser.handleException(SqlParser.java:140)
at
org.apache.calcite.sql.parser.SqlParser.parseQuery(SqlParser.java:155)
at org.apache.calcite.sql.parser.SqlParser.parseStmt(SqlParser.java:180)
at
org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:619)
... 22 common frames omitted
Caused by: org.apache.calcite.sql.parser.impl.ParseException: Encountered
";" at line 1, column 159.
Was expecting one of:
<EOF>
"EXCEPT" ...
"FETCH" ...
"GROUP" ...
"HAVING" ...
"INTERSECT" ...
"LIMIT" ...
"OFFSET" ...
"ORDER" ...
"MINUS" ...
"UNION" ...
"WINDOW" ...
"." ...
"NOT" ...
"IN" ...
"<" ...
"<=" ...
">" ...
">=" ...
"=" ...
"<>" ...
"!=" ...
"BETWEEN" ...
"LIKE" ...
"SIMILAR" ...
"+" ...
"-" ...
"*" ...
"/" ...
"%" ...
"||" ...
"AND" ...
"OR" ...
"IS" ...
"MEMBER" ...
"SUBMULTISET" ...
"CONTAINS" ...
"OVERLAPS" ...
"EQUALS" ...
"PRECEDES" ...
"SUCCEEDS" ...
"IMMEDIATELY" ...
"MULTISET" ...
"[" ...
"FORMAT" ...
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.generateParseException(SqlParserImpl.java:35588)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.jj_consume_token(SqlParserImpl.java:35402)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.SqlStmtEof(SqlParserImpl.java:3739)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.parseSqlStmtEof(SqlParserImpl.java:199)
at
org.apache.calcite.sql.parser.SqlParser.parseQuery(SqlParser.java:153)
... 24 common frames omitted
Exception in thread "Connection-2-ThreadExecutor"
java.lang.NullPointerException
at
org.apache.shardingsphere.infra.executor.sql.federate.execute.FederateJDBCExecutor.close(FederateJDBCExecutor.java:74)
at
org.apache.shardingsphere.proxy.backend.communication.jdbc.connection.BackendConnection.closeFederateExecutor(BackendConnection.java:302)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.closeExecutionResources(CommandExecutorTask.java:119)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
```
When I removed the semicolon, the following problem appeared.
```
sharding_db=> SELECT c_discount, c_last, c_credit, w_tax FROM bmsql_customer
c JOIN bmsql_warehouse w ON (w.w_id = c.c_w_id) WHERE c_w_id = 1 AND c_d_id = 3
AND c_id = 1912;
ERROR: Cannot find JDBC type '3' in PostgreSQL column type
```
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