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  1. MariaDB Server
  2. MDEV-21689

Add Sql_cmd for GRANT/REVOKE statements

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      Description

      Let's do the following:

      • Remove a few members from LEX:
        • uint grant, grant_to_col, which_columns
        • List<LEX_COLUMN> columns
        • bool all_privileges
      • Rewrite the GRANT/REVOKE grammar to use more bison stack instead of directly accessing these LEX members.
      • Add Sql_cmd_grant* and Sql_cmd_revoke* classes.

      Rationale:

      • Simplifying LEX
      • Making the grammar more maintainable (less hidden side effects)
      • We should eventually turn all statements to use Sql_cmd. So this is a step forward.

      Note, this change will need to introduce some helper classes. At least:

      • A class representing the ON clause in GRANT/REVOKE
      • A class representing the entire GRANT/REVOKE statement

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              Assignee:
              bar Alexander Barkov
              Reporter:
              bar Alexander Barkov
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