jacktengg opened a new pull request, #11728:
URL: https://github.com/apache/doris/pull/11728
# Proposed changes
Issue Number: close #xxx
## Problem summary
When inserting into external ODBC table, if data contains unicode chars
whose code point value is bigger than max int16, `utf8_ucs2_cvt.from_bytes`
throws exception `std::range_error` and causes BE coredump.
This is a temporary solution only to avoid BE coredump. A final solution to
support UNICODE chars bigger than max int16 should be provided later.
How to reproduce:
```
-- mysql table
CREATE TABLE t1 (
room_id bigint,
space_name varchar(300)
);
-- doris table
CREATE EXTERNAL RESOURCE `mysql_resource`
PROPERTIES (
"host" = "127.0.0.1",
"port" = "3306",
"user" = "root",
"password" = "",
"database" = "test",
"driver" = "MySQL ODBC 5.3",
"odbc_type" = "mysql",
"type" = "odbc_catalog");
CREATE EXTERNAL TABLE `t1` (
`room_id` bigint(20) NULL COMMENT "ID",
`space_name` text NULL COMMENT "name"
) ENGINE=ODBC
COMMENT "ODBC"
PROPERTIES (
"odbc_catalog_resource" = "mysql_resource",
"database" = "test",
"table" = "t1"
);
CREATE TABLE `t2` (
`room_id` bigint(20) NULL COMMENT "ID",
`space_name` text NULL COMMENT "name"
) ENGINE=OLAP
UNIQUE KEY(`room_id`)
COMMENT "OLAP"
DISTRIBUTED BY HASH(`room_id`) BUCKETS 2
PROPERTIES (
"replication_allocation" = "tag.location.default: 1",
"in_memory" = "false",
"storage_format" = "V2"
);
insert into `t2`(`room_id`,`space_name`) values (1, "a🐷b");
insert into t1 select * from t2;
```
## Checklist(Required)
1. Does it affect the original behavior:
- [ ] Yes
- [ ] No
- [ ] I don't know
2. Has unit tests been added:
- [ ] Yes
- [ ] No
- [ ] No Need
3. Has document been added or modified:
- [ ] Yes
- [ ] No
- [ ] No Need
4. Does it need to update dependencies:
- [ ] Yes
- [ ] No
5. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [ ] No
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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