Flink SQL ParseException: Encountered "(" at line 4, column 12 - Syntax Error

The error message indicates that there is a syntax error in the SQL statement at line 4, column 12. The parser was expecting one of the listed keywords but encountered a '(' instead. This could be caused by a missing keyword or incorrect syntax in the statement.

To resolve this, carefully check line 4 of your SQL statement, specifically column 12. Ensure that you are using the correct keyword or syntax. Refer to the Flink SQL documentation for the valid syntax and keywords. Here are some potential issues to look for:

• Missing Keyword: Check if you have omitted a required keyword before the '(' character. For example, if you are defining a table constraint, make sure you have included keywords like 'CONSTRAINT', 'PRIMARY', 'UNIQUE', etc.
• Incorrect Syntax: Double-check the syntax around the '(' character. Make sure it is used correctly based on the SQL statement context.
• Invalid Character: Ensure that there are no unintended characters or spaces before the '(' character.

If you are unsure of the correct syntax, review the Flink SQL documentation or consult online resources for examples and guidance.