有没有一种方法可以将BigQuery表的架构导出为JSON? [英] Is there a way to export a BigQuery table's schema as JSON?

问题描述

BigQuery 表具有可在网络用户界面中查看的架构，已更新，或用于

A BigQuery table has schema which can be viewed in the web UI, updated, or used to load data with the bq tool as a JSON file. However, I can't find a way to dump this schema from an existing table to a JSON file (preferably from the command-line). Is that possible?

推荐答案

一种将模式从现有表转储到JSON文件(最好从命令行)的方法.有可能吗?

a way to dump schema from an existing table to a JSON file (preferably from the command-line). Is that possible?

尝试以下

bq show bigquery-public-data:samples.wikipedia  

您可以使用–format标志来美化输出

You can use –format flag to prettify output

-format:none | json | prettyjson | csv | sparse | pretty:

--format: none|json|prettyjson|csv|sparse|pretty:

命令输出的格式.选项包括:

Format for command output. Options include:

none:       ...
pretty:     formatted table output  
sparse:     simpler table output  
prettyjson: easy-to-read JSON format  
json:       maximally compact JSON  
csv:        csv format with header   

前三个旨在使人可读，后三个是 传递给另一个程序.如果未选择任何格式，则将选择一种格式 根据命令运行.

The first three are intended to be human-readable, and the latter three are for passing to another program. If no format is selected, one will be chosen based on the command run.

意识到我提供了部分答案:o)

Realized I provided partial answer :o)

以下是PO想要的

bq show --format=prettyjson bigquery-public-data:samples.wikipedia | jq '.schema.fields' 

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