sql - How to show row numbers in PostgreSQL query? -


I want to show an overview number for each record received by a PostgreSQL query.

I 8.4 can display this capability in windowing functions. 

  select row_number () more than (by sequence & lt; region & gt; ), * Foo_tbl by command & lt; Field & gt;

If the command is not necessary, then this answer may also be simplified: 

  select row_number () over (), * - Notice: a field Not required from Foo_tbl

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