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//extern crate clap;
extern crate datafusion;
//extern crate liner;
//use std::fs::File;
//use std::io::BufRead;
//use std::io::BufReader;
//use std::str;
//use std::time::Instant;
//use clap::{App, Arg};
//use datafusion::exec::*;
//use datafusion::parser::*;
//use datafusion::sql::ASTNode::SQLCreateTable;
//const VERSION: &'static str = env!("CARGO_PKG_VERSION");
///// Interactive SQL console
//struct Console {
// ctx: ExecutionContext,
//}
//
//impl Console {
// fn new(etcd: String) -> Self {
// Console {
// ctx: ExecutionContext::remote(etcd),
// }
// }
//
// /// Execute a SQL statement or console command
// fn execute(&mut self, sql: &str) {
// println!("Executing query ...");
//
// let timer = Instant::now();
//
// // parse the SQL
// match Parser::parse_sql(String::from(sql)) {
// Ok(ast) => match ast {
// SQLCreateTable { .. } => {
// self.ctx.sql(&sql).unwrap();
// println!("Registered schema with execution context");
// ()
// }
// _ => match self.ctx.create_logical_plan(sql) {
// Ok(logical_plan) => {
// let physical_plan = PhysicalPlan::Interactive { plan: logical_plan };
//
// let result = self.ctx.execute(&physical_plan);
//
// match result {
// Ok(result) => {
// let elapsed = timer.elapsed();
// let elapsed_seconds = elapsed.as_secs() as f64
// + elapsed.subsec_nanos() as f64 / 1000000000.0;
//
// match result {
// ExecutionResult::Unit => {
// println!("Query executed in {} seconds", elapsed_seconds);
// }
// ExecutionResult::Count(n) => {
// println!(
// "Query executed in {} seconds and updated {} rows",
// elapsed_seconds, n
// );
// }
// }
// }
// Err(e) => println!("Error: {:?}", e),
// }
// }
// Err(e) => println!("Error: {:?}", e),
// },
// },
// Err(e) => println!("Error: {:?}", e),
// }
// }
//}