QV - Quickly view your data

A simply CLI to quickly view your data.

Usage

cargo run -- /Users/timvw/datasets/nyc/trip\ data/green_tripdata_2020-07.csv

+----------+----------------------+-----------------------+--------------------+------------+--------------+--------------+-----------------+---------------+-------------+-------+---------+------------+--------------+-----------+-----------------------+--------------+--------------+-----------+----------------------+
| VendorID | lpep_pickup_datetime | lpep_dropoff_datetime | store_and_fwd_flag | RatecodeID | PULocationID | DOLocationID | passenger_count | trip_distance | fare_amount | extra | mta_tax | tip_amount | tolls_amount | ehail_fee | improvement_surcharge | total_amount | payment_type | trip_type | congestion_surcharge |
+----------+----------------------+-----------------------+--------------------+------------+--------------+--------------+-----------------+---------------+-------------+-------+---------+------------+--------------+-----------+-----------------------+--------------+--------------+-----------+----------------------+
| 2        | 2020-07-01 00:05:18  | 2020-07-01 00:22:07   | N                  | 1          | 134          | 35           | 2               | 6.38          | 20.5        | 0.5   | 0.5     | 0          | 0            |           | 0.3                   | 21.8         | 2            | 1         | 0                    |
| 2        | 2020-07-01 00:47:06  | 2020-07-01 00:52:13   | N                  | 1          | 41           | 42           | 1               | 1.06          | 6           | 0.5   | 0.5     | 1.46       | 0            |           | 0.3                   | 8.76         | 1            | 1         | 0                    |
| 2        | 2020-07-01 00:24:59  | 2020-07-01 00:35:18   | N                  | 1          | 42           | 159          | 1               | 2.1           | 9           | 0.5   | 0.5     | 0          | 0            |           | 0.3                   | 10.3         | 2            | 1         | 0                    |
| 2        | 2020-07-01 00:55:12  | 2020-07-01 00:58:45   | N                  | 1          | 116          | 116          | 1               | 0.7           | 5           | 0.5   | 0.5     | 0          | 0            |           | 0.3                   | 6.3          | 2            | 1         | 0                    |
| 2        | 2020-07-01 00:12:36  | 2020-07-01 00:20:14   | N                  | 1          | 43           | 141          | 1               | 1.84          | 8           | 0.5   | 0.5     | 0          | 0            |           | 0.3                   | 12.05        | 2            | 1         | 2.75                 |
| 2        | 2020-07-01 00:30:55  | 2020-07-01 00:37:05   | N                  | 5          | 74           | 262          | 1               | 2.04          | 27          | 0     | 0       | 0          | 0            |           | 0.3                   | 30.05        | 2            | 1         | 2.75                 |
| 2        | 2020-07-01 00:13:00  | 2020-07-01 00:19:09   | N                  | 1          | 159          | 119          | 1               | 1.35          | 6.5         | 0.5   | 0.5     | 0          | 0            |           | 0.3                   | 7.8          | 2            | 1         | 0                    |
| 2        | 2020-07-01 00:39:09  | 2020-07-01 00:40:55   | N                  | 1          | 75           | 75           | 1               | 0.35          | -3.5        | -0.5  | -0.5    | 0          | 0            |           | -0.3                  | -4.8         | 4            | 1         | 0                    |
| 2        | 2020-07-01 00:39:09  | 2020-07-01 00:40:55   | N                  | 1          | 75           | 75           | 1               | 0.35          | 3.5         | 0.5   | 0.5     | 0          | 0            |           | 0.3                   | 4.8          | 2            | 1         | 0                    |
| 2        | 2020-07-01 00:45:59  | 2020-07-01 01:01:02   | N                  | 1          | 75           | 87           | 1               | 8.17          | 24          | 0.5   | 0.5     | 4.21       | 0            |           | 0.3                   | 32.26        | 1            | 1         | 2.75                 |
+----------+----------------------+-----------------------+--------------------+------------+--------------+--------------+-----------------+---------------+-------------+-------+---------+------------+--------------+-----------+-----------------------+--------------+--------------+-----------+----------------------+

cargo run -- ./testing/data/avro/alltypes_plain.snappy.avro

+----+----------+-------------+--------------+---------+------------+-----------+------------+------------------+------------+---------------------+
| id | bool_col | tinyint_col | smallint_col | int_col | bigint_col | float_col | double_col | date_string_col  | string_col | timestamp_col       |
+----+----------+-------------+--------------+---------+------------+-----------+------------+------------------+------------+---------------------+
| 6  | true     | 0           | 0            | 0       | 0          | 0         | 0          | 30342f30312f3039 | 30         | 2009-04-01 00:00:00 |
| 7  | false    | 1           | 1            | 1       | 10         | 1.1       | 10.1       | 30342f30312f3039 | 31         | 2009-04-01 00:01:00 |
+----+----------+-------------+--------------+---------+------------+-----------+------------+------------------+------------+---------------------+

cargo run -- ./testing/data/parquet/generated_simple_numerics/blogs.parquet
+--------------------------------------------------+---------+
| reply                                            | blog_id |
+--------------------------------------------------+---------+
| {"reply_id": 332770973, "next_id": null}         |         |
| {"reply_id": 1374000900, "next_id": null}        |         |
| {"reply_id": -157221482, "next_id": -1804048739} |         |
|                                                  |         |
|                                                  |         |
|                                                  |         |
| {"reply_id": 224405132, "next_id": -1977243853}  |         |
|                                                  |         |
| {"reply_id": 839906147, "next_id": 1141074494}   |         |
|                                                  |         |
+--------------------------------------------------+---------+

Development

Uses standard rust toolchain:

cargo build
cargo test
cargo publish 

Linting:

cargo fmt
cargo clippy --all-features --all-targets --workspace -- -D warnings
cargo tomlfmt -p ./Cargo.toml

Or all in one as following:

./dev/rust_lint.sh