{"name":"select_three_columns","pyspark_version":"3.5.0","input":{"schema":[{"name":"a","type":"bigint"},{"name":"b","type":"string"},{"name":"c","type":"bigint"},{"name":"d","type":"string"}],"rows":[[1,"x",10,"p"],[2,"y",20,"q"],[3,"z",30,"r"]]},"operations":[{"op":"select","columns":["a","c","d"]}],"expected":{"schema":[{"name":"a","type":"bigint"},{"name":"c","type":"bigint"},{"name":"d","type":"string"}],"rows":[[1,10,"p"],[2,20,"q"],[3,30,"r"]]}}