CalvinKirs opened a new pull request, #25459:
URL: https://github.com/apache/doris/pull/25459
```sql
CREATE TABLE test_create_table (
a DATEV2 NOT NULL COMMENT "a",
b VARCHAR(96) NOT NULL COMMENT 'b',
c VARCHAR(96) NOT NULL COMMENT 'c',
d VARCHAR(96) COMMENT '',
e bigint NOT NULL )
DISTRIBUTED BY HASH(e) BUCKETS 1
PROPERTIES( 'replication_num' = '1');
create table test_create_table_like like test_create_table
show create table test_create_table_like
```
``` error log
2023-10-16 11:46:39,422 WARN (mysql-nio-pool-1|298)
[StmtExecutor.handleDdlStmt():2321] DDL statement(/* ApplicationName=DataGrip
2023.1.1 */ create table test_create_table_like like test_create_table) process
failed.
org.apache.doris.common.DdlException: errCode = 2, detailMessage = Failed to
execute CREATE TABLE LIKE test_create_table. Reason: errCode = 2, detailMessage
= Syntax error in line 3:
`b` varchar(96) NOT NULL COMMENT ''b'',
^
Encountered: IDENTIFIER
Expected: COMMA
at
org.apache.doris.datasource.InternalCatalog.createTableLike(InternalCatalog.java:1187)
~[classes/:?]
at org.apache.doris.catalog.Env.createTableLike(Env.java:2878)
~[classes/:?]
at org.apache.doris.qe.DdlExecutor.execute(DdlExecutor.java:163)
~[classes/:?]
at
org.apache.doris.qe.StmtExecutor.handleDdlStmt(StmtExecutor.java:2312)
~[classes/:?]
at
org.apache.doris.qe.StmtExecutor.executeByLegacy(StmtExecutor.java:772)
~[classes/:?]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:468)
~[classes/:?]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:438)
~[classes/:?]
at
org.apache.doris.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:353)
~[classes/:?]
```
### Changes
Considering that our `Comment` currently contains single quote characters,
this change will
When encapsulating `Comment`, it will be judged. If `Comment` itself already
contains single quotes, there is no need to add '.
In this way, if we directly use the `Comment` field later, we can remove the
single quotes without any impact. It is compatible with both old and new
versions.
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