在 postgres/redshift 的多个表中使用 SELECT *

Question

I have 3 tables with 2 common fields for all tables (id, timestamp) . I want to do something like this:

SELECT * 
FROM table1, 
     table2, 
     table3 
WHERE id = '123' 
      and timestamp = '1704'

What I would expect is that it returns all the rows with the id and timestamp matching from the 3 tables. How can the query be modified to achieve this?

Answer 1

 select /*your_columns*/
   from table1 
   inner join table2 on table1.id = table2.id and table1.timestamp = table2.timestamp
   inner join table3 on table2.id = table3.id and table2.timestamp = table3.timestamp
 where table1.id = '123'and table1.timestamp = '1704'

See more here about JOINs