Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
313 views
in Technique[技术] by (71.8m points)

psql - Show query result column types (PostgreSQL)

Is there a way to easily get the column types of a query result? I read the psql documentation, but I don't think it supports that. Ideally, I'd be able to get something like:

 columna : text | columnb : integer
----------------+-------------------
 oh hai         |                42

Is there a way I can get this information without coding something up?

question from:https://stackoverflow.com/questions/3267769/show-query-result-column-types-postgresql

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

I don't think you can print exactly what you have in the sample, unless you write a stored procedure for it.

One way to do it (two "selects"):

  1. create table my_table as select ...
  2. d my_table
  3. select * from my_table

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...