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roapi/columnq-cli
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Qingping Hou d5359b4e56 lots of goodies 
* add in memory io source support
* add sql command to columnq cli
* support passing table format as columnq cli option
2021-07-18 00:06:59 -07:00
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src lots of goodies 2021-07-18 00:06:59 -07:00
Cargo.toml lots of goodies 2021-07-18 00:06:59 -07:00
README.md lots of goodies 2021-07-18 00:06:59 -07:00

README.md

Columnq

Easy to use library and CLI to help you query tabular data with support for a rich set of growing formats data sources.

Usage

Show schemas for a specific table:

columnq(sql)> show columns from uk_cities;
+---------------+--------------+------------+-------------+-----------+-------------+
| table_catalog | table_schema | table_name | column_name | data_type | is_nullable |
+---------------+--------------+------------+-------------+-----------+-------------+
| datafusion    | public       | uk_cities  | city        | Utf8      | NO          |
| datafusion    | public       | uk_cities  | lat         | Float64   | NO          |
| datafusion    | public       | uk_cities  | lng         | Float64   | NO          |
+---------------+--------------+------------+-------------+-----------+-------------+