Hi,

We are running into a performance issue with the Golang target in which parsing takes exponentially longer the more terms are present in the query (the Java target returns immediately). A somewhat minimal example is available here. It includes the grammar files, the JAR that generated the Golang code, as well as CPU/memory benchmarks for the query in v4parser/minimal_test.go.

Does this appear to be an issue in ANTLR's Golang code generation? Is there anything we can do within the grammar itself to work around the issue?

Thanks!
Jason