POSTGRES：预期 DEFAULT 表达式的类型为 varchar，但“0”的类型为 int

Question

I'm trying to do a 3rd party software installation and I'm getting the error:

SQL Error DB_ERROR_ERROR: XXUUU: expected DEFAULT expression to have type varchar, but '0' has type int ERROR: XXUUU: expected DEFAULT expression to have type varchar, but '0' has type int

The query that the installation is trying to execute is:

Executed query : create table llx_adherent_type_lang ( rowid SERIAL PRIMARY KEY, fk_type integer DEFAULT 0 NOT NULL, lang varchar(5) DEFAULT 0 NOT NULL, label varchar(255) NOT NULL, description text, email text, import_key varchar(14) DEFAULT NULL ); 

My guess is that the problem has to do with lang varchar(5) DEFAULT 0 NOT NULL part of the query? Is it because the column is expecting a varchar(5) while the default value is 0 ? Which is an integer? Is my way of thinking valid?

If I am to fix it does it mean that I just need to find where the query is and change the default value from 0 to "0" ?

Answer 1

change it from 0 to '0' , or as Bengi suggests '' if that makes more sense.

In postgresql "0" would be a name (could be used for the name of a table or name of a column etc) but '0' is a string literal(text, char, varchar, etc)