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  1. MariaDB Server
  2. MDEV-23677

Optimizer trace: remove print out with "no predicate for first keypart"

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      For joins, best_access_path object can have printouts like this:

              {
      		 
                "access_type": "ref",
      		 
                "index": "PRIMARY",
      		 
                "rows": 1.79769e308,
      		 
                "cost": 1.79769e308,
      		 
                "chosen": false,
      		 
                "cause": "no predicate for first keypart"
      		 
              },

      I think these should be removed as they don't have any value.

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            Assignee:
            psergei Sergei Petrunia
            Reporter:
            psergei Sergei Petrunia
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