show columns postgres table code example

Example 1: how to list columns for particular tables in postgresql

SELECT *
  FROM information_schema.columns
 WHERE table_schema = 'your_schema'
   AND table_name   = 'your_table'
     ;

Example 2: postgre describe table

SELECT 
   table_name, 
   column_name, 
   data_type 
FROM 
   information_schema.columns
WHERE 
   table_name = 'city';

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