Encountered `import cycle not allowed` when running sample

[Zhihong Yu]

I am using

go version go1.16.13 linux/amd64

When running https://github.com/pganalyze/pg_query_go/#parsing-a-query-into-go-structs , I got the following error:

package command-line-arguments
	imports github.com/pganalyze/pg_query_go/v2
	imports github.com/pganalyze/pg_query_go/v2: import cycle not allowed

[Lukas Fittl]

Its not clear why this would occur - could it be that you were using an outdated version? (per #57)