ballista-cli 52.0.0

Command Line Client for Ballista distributed query engine.
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# Ballista Command-line Interface

[Ballista][ballista] is a distributed query execution framework, written in Rust, that uses Apache Arrow as its in-memory format.

The Ballista CLI allows SQL queries to be executed by an in-process DataFusion context, or by a distributed
Ballista context.

```ignore
USAGE:
    ballista-cli [OPTIONS]

OPTIONS:
    -c, --batch-size <BATCH_SIZE>
            The batch size of each query, or use Ballista default

        --color
            Enables console syntax highlighting

        --concurrent-tasks <CONCURRENT_TASKS>
            The max concurrent tasks, only for Ballista local mode. Default: all available cores

    -f, --file <FILE>...
            Execute commands from file(s), then exit

        --format <FORMAT>
            [default: table] [possible values: csv, tsv, table, json, nd-json, automatic]

    -h, --help
            Print help information

        --host <HOST>
            Ballista scheduler host

    -p, --data-path <DATA_PATH>
            Path to your data, default to current directory

        --port <PORT>
            Ballista scheduler port

    -q, --quiet
            Reduce printing other than the results and work quietly

    -r, --rc <RC>...
            Run the provided files on startup instead of ~/.ballistarc

    -V, --version
            Print version information
```

## Example

Create a CSV file to query.

```bash,ignore
$ echo "1,2" > data.csv
```

```sql,ignore
$ ballista-cli

Ballista CLI v0.12.0

> CREATE EXTERNAL TABLE foo (a INT, b INT) STORED AS CSV LOCATION 'data.csv';
0 rows in set. Query took 0.001 seconds.

> SELECT * FROM foo;
+---+---+
| a | b |
+---+---+
| 1 | 2 |
+---+---+
1 row in set. Query took 0.017 seconds.

> \q
```

## Ballista-Cli

If you want to execute the SQL in ballista by `ballista-cli`, you must build/compile `ballista-cli` first.

```bash
cd datafusion-ballista/ballista-cli
cargo build
cargo install --path .
```

The Ballista CLI can connect to a Ballista scheduler for query execution.

```bash
ballista-cli --host localhost --port 50050
```

[ballista]: https://crates.io/crates/ballista