[GitHub] [arrow-datafusion] ZuoTiJia commented on issue #5415: `rpad` function causes OOM

["ZuoTiJia (via GitHub)" <gi...@apache.org>]

ZuoTiJia commented on issue #5415:
URL: https://github.com/apache/arrow-datafusion/issues/5415#issuecomment-1447445848

   > We probably have to put some limits. for example postgres fails fast
   > 
   > ```
   > select rpad('a', 1073741824, 'a');
   > 
   > requested length too large
   > ```
   > 
   > My Mac is spinning CPU like crazy with the same query in datafusion-cli, I had to kill the process
   > 
   > @ZuoTiJia is such kind of rpad is needed by your real use case or you testing DF limits? :)
   
   I'm testing DF and I think it's dangerous for users if there is no limit.


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