Woong Wen Tat created FLINK-31419:
-------------------------------------
Summary: Flink-JDBC should allow . in field names
Key: FLINK-31419
URL: https://issues.apache.org/jira/browse/FLINK-31419
Project: Flink
Issue Type: Bug
Components: Connectors / JDBC
Reporter: Woong Wen Tat
Currently, the method
org.apache.flink.connector.jdbc.statement.FieldNamedPreparedStatementImpl#parseNamedStatement
parses . (period) in file name as an illegal character, so the statement
```
INSERT INTO `tbl`(`action.id`, `action.name`, `email`, `ts`, `field1`,
`field_2`, `__field_3__`) VALUES (:id, :name, :email, :ts, :field1, :field_2,
:__field_3__)
``` does not get parsed into
```
INSERT INTO `tbl`(`action.id`, `action.name`, `email`, `ts`, `field1`,
`field_2`, `__field_3__`) VALUES (:id, :action.name, :email, :ts, :field1,
:field_2, :__field_3__)
```
Instead, action.id and action.name will be parsed to the same name - action,
this causes incompatible schema with the database
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