PL/SQL - what version is supported?

[piotrlg9]

It looks like PL/SQL grammar (https://github.com/antlr/grammars-v4/tree/master/sql/plsql) supports some generic / abstract version, because there is only one version available AFAIK.

Could you specify which Oracle SQL version is supported?
Is it possible to have distinct grammars per each version?
For example I can provide fixes for Oracle 19c (which I use) but I don't want to corrupt parsing for other versions.

[kaby76]

No one knows. Modifying the grammar continuously for different versions of the language does not work. Every version for pl/sql (or language xxx) should have its own grammar fixed for all time. If it does not work you fix it for that version and only that version. This is how it is now set up for the python grammars.