Method explain

src/org/apache/pig/scripting/BoundScript.java:236–244

Explain this pipeline. Results will be printed to stdout. @throws IOException if explain fails.

()

     * @throws IOException if explain fails.
     */
    public void explain() throws IOException {
        if (queries.isEmpty()) {
            LOG.info("No bound query to explain");
            return;
        }
        PigServer pigServer = new PigServer(scriptContext.getPigContext(), false);
        registerQueryForDiagnostics(pigServer, queries.get(0));
        pigServer.explain(null, System.out);
    }

    /**
     * Describe the schema of an alias in this pipeline.