有没有办法将 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,bq
工具作为 JSON 文件.但是,我找不到将此模式从现有表转储到 JSON 文件(最好从命令行)的方法.这可能吗?
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 文件的方法(最好从命令行).这可能吗?
a way to dump schema from an existing table to a JSON file (preferably from the command-line). Is that possible?
试试下面的
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
--格式:无|json|prettyjson|csv|稀疏|漂亮:
--format: none|json|prettyjson|csv|sparse|pretty:
命令输出格式.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
前三个是人类可读的,后三个是用于传递给另一个程序.如果未选择格式,则将选择一种基于命令运行.
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)
下面是PO想要的
bq show --format=prettyjson bigquery-public-data:samples.wikipedia | jq '.schema.fields'
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