How to limit the maximum display length of a column in PostgreSQL

Question

I am using PostgreSQL, and I have a column in a table which contains very long text. I want to select this column in a query, but limit its display length.

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Answer 1

What you can do is use PostgreSQL's substring() method. Either one of the two commands below will work:

SELECT substring(longcolumn for 10) FROM mytable;
SELECT substring(longcolumn from 1 for 10) FROM mytable;