Alexander Barkov fba7fbbc5c MDEV-9397 Split field.cc:calc_pack_length() into virtual methods in Type_handler ...

- Adding new virtual methods in Type_handler:
  * Column_definition_prepare_stage1()
  * Column_definition_prepare_stage2()
  * calc_pack_length()

- Using new methods to remove type specific code in:
  * Global function calc_pack_length()
  * Column_definition::prepare_create_field()
  * The loop body mysql_prepare_create_table()
  * Column_definition::sp_prepare_create_field()

2017-05-17 12:21:39 +04:00

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