visidata
zsv
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visidata | zsv | |
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36 | 25 | |
7,409 | 170 | |
- | - | |
9.8 | 7.4 | |
12 days ago | 9 days ago | |
Python | C | |
GNU General Public License v3.0 only | MIT License |
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visidata
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Fx – Terminal JSON Viewer
[4] "Is it possible to "flatten" structured data (like JSON?)": https://github.com/saulpw/visidata/discussions/1605
- jq 1.7 Released
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Mapping LA's Soft-Story Building Earthquake Retrofit Program [OC]
Visidata - https://visidata.org
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SQLite interface(s) for creating complex queries with a table that has 68 million rows?
You can try Visidata
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Terminal Based Programs?
VisiData is an awesome terminal spreadsheet tool. edbrowse for internet browsing.
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Plugin for pretty rendering of data?
Have you ever tried out visidata? It's not vim, but it's a terminal app with vim-like keybindings for visualizing tabular data (and it can convert from other types like json). Not quite a neovim buffer, but you could always open visidata in a new terminal buffer.
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Ask HN: I'm looking for some new spreadsheet software what are people using?
If you are a command-line user, try visidata[0]
[0] https://github.com/saulpw/visidata
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Hanukkah of Data: Advent of Code for Data Nerds
The datasets will be available as SQLite, JSONL, and CSV. This will be great for sharpening your SQL/Python/VisiData skills.
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Hanukkah of Data: Advent of Code for Data Enthusiasts
Help Sarah find the family holiday tapestry before her father notices it's missing! Sharpen your SQL/Python/VisiData skills with Hanukkah of Data.
- Visidata - work with CSV / SQLlite / xls and other data files from the CLI
zsv
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Analyzing multi-gigabyte JSON files locally
If it could be tabular in nature, maybe convert to sqlite3 so you can make use of indexing, or CSV to make use of high-performance tools like xsv or zsv (the latter of which I'm an author).
https://github.com/BurntSushi/xsv
https://github.com/liquidaty/zsv/blob/main/docs/csv_json_sql...
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Show HN: Up to 100x Faster FastAPI with simdjson and io_uring on Linux 5.19
Parsing CSV doesn't have to be slow if you use something like xsv or zsv (https://github.com/liquidaty/zsv) (disclaimer: I'm an author). The speed of CSV parsers is fast enough that unless you are doing something ultra-trivial such as "count rows", your bottleneck will be elsewhere.
The benefits of CSV are:
- human readable
- does not need to be typed (sometimes, data in the raw such as date-formatted data is not amenable to typing without introducing a pre-processing layer that gets you further from the original data)
- accessible to anyone: you don't need to be a data person to dbl-click and open in Excel or similar
The main drawback is that if your data is already typed, CSV does not communicate what the type is. You can alleviate this through various approaches such as is described at https://github.com/liquidaty/zsv/blob/main/docs/csv_json_sql..., though I wouldn't disagree that if you can be assured that your starting data conforms to non-text data types, there are probably better formats than CSV.
The main benefit of Arrow, IMHO, is less as a format for transmitting / communicating but rather as a format for data at rest, that would benefit from having higher performance column-based read and compression
- Yq is a portable yq: command-line YAML, JSON, XML, CSV and properties processor
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csvkit: Command-line tools for working with CSV
I wanted so much to use csvkit and all the features it had, but its horrendous performance made it unscalable and therefore the more I used it, the more technical debt I accumulated.
This was one of the reasons I wrote zsv (https://github.com/liquidaty/zsv). Maybe csvkit could incorporate the zsv engine and we could get the best of both worlds?
Examples (using majestic million csv):
---
- Ask HN: Programs that saved you 100 hours? (2022 edition)
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Show HN: Split CSV into multiple files to avoid the Excel's 1M row limitation
}
```
This of course assumes that each line is a single record, so you'll need some preprocessing if your CSV might contain embedded line-ends. For the preprocessing, you can use something like the `2tsv` command of https://github.com/liquidaty/zsv (disclaimer: I'm its author), which converts CSV to TSV and replaces newline with \n.
You can also use something like `xsv split` (see https://lib.rs/crates/xsv) which frankly is probably your best option as of today (though zsv will be getting its own shard command soon)
- Run SQL on CSV, Parquet, JSON, Arrow, Unix Pipes and Google Sheet
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Ask HN: Best way to find help creating technical doc (open- or closed-source)?
Am looking for one-time help creating documentation (e.g. man pages, tutorials) for open source project (e.g. https://github.com/liquidaty/zsv) as well as product documentation for commercial products, but not enough need for a full-time job. Requires familiarity with, for lack of better term, data janitorial work, and preferably with methods of auto-generating documentation. Any suggestions as to forums or other ways to find folks who might fit the bill for ad-hoc or part-time work of this nature?
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Q – Run SQL Directly on CSV or TSV Files
Nice work. I am a fan of tools like this and look forward to giving this a try.
However, in my first attempted query (version 3.1.6 on MacOS), I ran into significant performance limitations and more importantly, it did not give correct output.
In particular, running on a narrow table with 1mm rows (the same one used in the xsv examples) using the command "select country, count() from worldcitiespop_mil.csv group by country" takes 12 seconds just to get an incorrect error 'no such column: country'.
using sqlite3, it takes two seconds or so to load, and less than a second to run, and gives me the correct result.
Using https://github.com/liquidaty/zsv (disclaimer, I'm one of its authors), I get the correct results in 0.95 seconds with the one-liner `zsv sql 'select country, count() from data group by country' worldcitiespop_mil.csv`.
I look forward to trying it again sometime soon
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A Trillion Prices
All this banter arguing over CSV, JSON, sqlite seems unnecessary when you can just push format X through a pipe and get whichever format Y you want back out: https://github.com/liquidaty/zsv/blob/main/docs/csv_json_sql...
(disclaimer: I'm one of the zsv authors)
What are some alternatives?
sc-im - sc-im - Spreadsheet Calculator Improvised -- An ncurses spreadsheet program for terminal
duckdb - DuckDB is an in-process SQL OLAP Database Management System
miller - Miller is like awk, sed, cut, join, and sort for name-indexed data such as CSV, TSV, and tabular JSON
lnav - Log file navigator
sqlite-tui - A TUI for viewing and editing database files. [Moved to: https://github.com/mathaou/termdbms]
tsv-utils - eBay's TSV Utilities: Command line tools for large, tabular data files. Filtering, statistics, sampling, joins and more.
tidy-viewer - 📺(tv) Tidy Viewer is a cross-platform CLI csv pretty printer that uses column styling to maximize viewer enjoyment.
ClickHouse - ClickHouse® is a free analytics DBMS for big data
OpenRefine - OpenRefine is a free, open source power tool for working with messy data and improving it
nio - Low Overhead Numerical/Native IO library & tools
exa - A modern replacement for ‘ls’.
q - q - Run SQL directly on delimited files and multi-file sqlite databases