liugddx opened a new issue, #28204: URL: https://github.com/apache/doris/issues/28204
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/doris/issues?q=is%3Aissue) and found no similar issues. ### Version master ### What's Wrong? CAUSED BY: ClassCastException: [Ljava.lang.Object; cannot be cast to [Ljava.lang.Long; at org.apache.doris.qe.Coordinator.getNext(Coordinator.java:1278) ~[classes/:?] at org.apache.doris.qe.StmtExecutor.sendResult(StmtExecutor.java:1538) ~[classes/:?] at org.apache.doris.qe.StmtExecutor.handleQueryStmt(StmtExecutor.java:1473) ~[classes/:?] at org.apache.doris.qe.StmtExecutor.handleQueryWithRetry(StmtExecutor.java:653) ~[classes/:?] at org.apache.doris.qe.StmtExecutor.executeByNereids(StmtExecutor.java:586) ~[classes/:?] at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:444) ~[classes/:?] at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:431) ~[classes/:?] at org.apache.doris.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:240) ~[classes/:?] at org.apache.doris.qe.MysqlConnectProcessor.handleQuery(MysqlConnectProcessor.java:160) ~[classes/:?] at org.apache.doris.qe.MysqlConnectProcessor.dispatch(MysqlConnectProcessor.java:187) ~[classes/:?] at org.apache.doris.qe.MysqlConnectProcessor.processOnce(MysqlConnectProcessor.java:240) ~[classes/:?] at org.apache.doris.mysql.ReadListener.lambda$handleEvent$0(ReadListener.java:52) ~[classes/:?] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_151] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_151] at java.lang.Thread.run(Thread.java:748) ~[?:1.8.0_151] ### What You Expected? Results can be obtained. ### How to Reproduce? CREATE TABLE numeric_table ( id bigint(32), tinyint_col TINYINT, smallint_col SMALLINT, int_col INT, bigint_col BIGINT, decimal_col DECIMAL(10,2), float_col FLOAT(8,4), double_col DOUBLE(15,10), boolean_col BOOLEAN, date_col DATE, time_col TIME, datetime_col DATETIME, timestamp_col TIMESTAMP ); INSERT INTO numeric_table (id, tinyint_col, smallint_col, int_col, bigint_col, decimal_col, float_col, double_col, boolean_col, date_col, time_col, datetime_col, timestamp_col) VALUES (1, 1, 100, 1000, NULL, 10.50, 3.1415, 3.1415926535, TRUE, '2023-01-01', '12:34:56', '2023-01-01 12:34:56', CURRENT_TIMESTAMP), (2, 0, -50, -500, -NULL, -5.25, -2.7182, -2.7182818284, FALSE, '2023-02-02', '23:59:59', '2023-02-02 23:59:59', CURRENT_TIMESTAMP), (3, -1, 0, 0,NULL, 0.00, 0.0000, 0.0000000000, TRUE, '2023-03-03', '00:00:00', '2023-03-03 00:00:00', CURRENT_TIMESTAMP); ### Anything Else? Because the type of a certain column is null and the `ColumnValueConverter` is null. But the type is forced to change. <img width="1433" alt="image" src="https://github.com/apache/doris/assets/48236177/9a5e4ffc-1a7e-4aab-a861-575cd8662256";> Since the column values are all null, the type cannot be recognized, so null is returned directly. ### Are you willing to submit PR? - [X] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
