https://github.com/wmarquardt/cassandra-csv

A simple way to export cassandra query result to CSV format
https://github.com/wmarquardt/cassandra-csv

cassandra csv data python

Last synced: 3 months ago
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A simple way to export cassandra query result to CSV format

• Host: GitHub
• URL: https://github.com/wmarquardt/cassandra-csv
• Owner: wmarquardt
• License: mit
• Created: 2019-04-12T00:38:05.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2024-01-19T01:17:12.000Z (12 months ago)
• Last Synced: 2024-10-15T11:58:11.035Z (3 months ago)
• Topics: cassandra, csv, data, python
• Language: Python
• Size: 20.5 KB
• Stars: 6
• Watchers: 2
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

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# Cassandra CSV

Python package to export cassandra query result to CSV format.

Cassandra `COPY` function does not export data with **WHERE** clause. If you need to export cassandra query result to CSV format, just read the documentation below.

## Install

```shell

$ pip install cassandra-csv

```

## Usage

```python

from cassandra.cluster import Cluster

from cassandracsv import CassandraCsv

cluster = Cluster()

cassandra_cluster = cluster.connect('database')

result = cassandra_cluster.execute("""SELECT foo FROM bar WHERE foobar=2""")

CassandraCsv.export(

    result,

    [options]

)

```

## Options

|Name| Type | Default |  Description |

|--|--|--|--|

| **max_file_size** | int | 0 | max CSV file size (lines) the file will be splitted until complete entire resultset. Use 0 to export all result to just one file |

| **output_dir** | string | /tmp | full output path

| **filename** | string | export_file | file name (without extension)

| **separator** | string | , | string separator

| **with_header** | boolean | True | show file header (field name or alias, added direct on select using `as`)

| **create_subfolder** | boolean | False | create sulfolder to store files.