Postgresql tables exists, but getting “relation does not exist” when querying

Question

I have a postgresql db with a number of tables. If I query:

SELECT column_name
FROM information_schema.columns
WHERE table_name=\"my_table\";

Answer 1

You have to include the schema if isnt a public one

SELECT *
FROM ."my_table"

Or you can change your default schema

SHOW search_path;
SET search_path TO my_schema;

Check your table schema here

SELECT *
FROM information_schema.columns

For example if a table is on the default schema public both this will works ok

SELECT * FROM parroquias_region
SELECT * FROM public.parroquias_region

But sectors need specify the schema

SELECT * FROM map_update.sectores_point