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try a subselect (Score:1)

by perrin (4270)

I always thought that update with a join was a bit strange. Maybe you can rewrite this as a subselect.
- it's really not difficult (Score:1)
  
  by jaybee (3243) on 2006.04.18 10:16 (#47251) Homepage Journal
  
  update foo set col = bar.col where bar = bar.id
  
  you are't updating "bar" so why would you type "update foo, *bar*"? from comparisons with "select" it's a little odd that postgresql doesn't allow you to specify the table name of the table to be updated (the bare "col" and "bar" in my example).
  
  in your second command, you have three tables: task, command, and t (a second copy of task). you haven't specified how task and t are related.
  
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