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CLI interface for running SQL queries with Polars as backend

Results 16 polars-cli issues
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### Problem description Currently the Polars CLI has the following syntax for converting a file from CSV to Parquet: ```bash polars -o parquet "SELECT * FROM read_csv('data.csv')" > data.parquet ```...

enhancement

### Description The README shows how a SQL command can be passed to the command via stdin. Would it be possible to pipe data (in my case JSONL) via stdin,...

enhancement

### Description needn't add `from` clause such as `select 1`,`select 1 as a`,`select 1 a` it isn't supported now ```sql Polars CLI version 0.8.0 Type .help for help. 〉select 1...

enhancement

This PR is a work in progress. The goal is to create clear and straightforward documentation as requested in issue #43. ### Task List for PR: - [ ] **Set...

enhancement

### Description release new version with polars Rust Polars 0.43.1

enhancement

### Checks - [X] I have checked that this issue has not already been reported. - [X] I have confirmed this bug exists on the [latest version](https://github.com/pola-rs/polars-cli/releases/latest) of the Polars...

bug