feat: add support for INTERPRET function parsing

[matteosist]

Update JSqlParserCC.jjt adding properly definition Added InterpretExpression java class
Add visit function implementation to classes that implements ExpressionVisitor Added InterpretExpression tests

BREAKING CHANGE: No

[manticore-projects]

Greetings!

Thank you your contribution and interest in JSQLParser.
One question though: what is the difference between a Cast() function and an Interpret() function (except the keyword Interpret). As far as I can see it, Interpretis a RDBMS specificCast()`, am I right?

If so, would it not be better to just to extend the existing Cast function to work with the Interprete keyword?
Saved us a lot of code.

[manticore-projects]

Looks good in general, but I think it would be better merged into the existing Cast() function since only the keyword seems to be different.
Saves a lot of code for the Visitors and keeps the Grammar slim.

[matteosist]

Greetings!

Thank you your contribution and interest in JSQLParser. One question though: what is the difference between a Cast() function and an Interpret() function (except the keyword Interpret). As far as I can see it, Interpretis a RDBMS specificCast()`, am I right?

If so, would it not be better to just to extend the existing Cast function to work with the Interprete keyword? Saved us a lot of code.

Thanks for the review.

Yes you are right, the behavior is similar to the CAST. It is database specific and was introduced in recent versions of the IBM i-series to replace the use of cast to parse journal content.

I will modify the PR by joining the code to the CAST function.

Thank you

[manticore-projects]

Thanks! Looks good now and I would merge it when the QA tests will have ran through.

[manticore-projects]

Thank you again for your contribution, merged.

[matteosist]

Fantastic. Thank you for this very useful library