chrismytton / csvquery

Query CSV files using SQL over HTTP

WORK IN PROGRESS - there will be things that are broken or don't work

CSV Query

Query CSV files with SQL.

Install

go get -u github.com/chrismytton/csvquery/cmd/csvquery

Usage

Given two CSV files:

people.csv

id	name
1	Alice
2	Bob

ages.csv

person_id	age
1	20
2	30

You can then query these two files like so:

csvquery -table people:people.csv -table ages:ages.csv \
  -query 'select id,name,age from people join ages on ages.person_id = people.id'

Which should give you the following result:

id	name	age
1	Alice	20
2	Bob	30

See csvquery -help for help.

Server version

There is also a very experimental HTTP server, which you can install with the following:

go get -u github.com/chrismytton/csvquery/cmd/csvquery-server

This accepts one or more ?table parameters, but instead of pointing to files they point to URLs, and then a ?query parameter including the query. These parameters will need to be URL-encoded.

Compiling for Windows on macOS

I had to do the following to get things cross compiling to Windows from macOS.

brew install mingw-w64

GOOS=windows GOARCH=386 CGO_ENABLED=1 CC=i686-w64-mingw32-gcc go build -v github.com/chrismytton/csvquery/cmd/csvquery