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  3. 12 Dec, 2016 1 commit
    • Sergei Golubchik's avatar
      MDEV-5800 InnoDB support for indexed vcols · 1cae1af6
      Sergei Golubchik authored
        * remove old 5.2+ InnoDB support for virtual columns
        * enable corresponding parts of the innodb-5.7 sources
        * copy corresponding test cases from 5.7
        * copy detailed Alter_inplace_info::HA_ALTER_FLAGS flags from 5.7
           - and more detailed detection of changes in fill_alter_inplace_info()
        * more "innodb compatibility hooks" in sql_class.cc to
           - create/destroy/reset a THD (used by background purge threads)
           - find a prelocked table by name
           - open a table (from a background purge thread)
      
        * different from 5.7:
          - new service thread "thd_destructor_proxy" to make sure all THDs are
            destroyed at the correct point in time during the server shutdown
          - proper opening/closing of tables for vcol evaluations in
             + FK checks (use already opened prelocked tables)
             + purge threads (open the table, MDLock it, add it to tdc, close
               when not needed)
          - cache open tables in vc_templ
          - avoid unnecessary allocations, reuse table->record[0] and table->s->default_values
          - not needed in 5.7, because it overcalculates:
            + tell the server to calculate vcols for an on-going inline ADD INDEX
            + calculate vcols for correct error messages
      
        * update other engines (mroonga/tokudb) accordingly
      1cae1af6