[MDEV-16823] Add Type_handler::Column_definition_reuse_fix_attributes() Created: 2018-07-25  Updated: 2018-07-25  Resolved: 2018-07-25

Status: Closed
Project: MariaDB Server
Component/s: Data types
Fix Version/s: 10.4.0

Type: Task Priority: Major
Reporter: Alexander Barkov Assignee: Alexander Barkov
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Blocks
blocks MDEV-4912 Data type plugin API version 1 Closed

 Description   

The code in Column_definition::Column_definition(THD *thd, Field *old_field, Field *orig_field) has data-type specific fragments:

  switch (real_field_type()) {
 
  case MYSQL_TYPE_TINY_BLOB:
 
  case MYSQL_TYPE_BLOB:
 
  case MYSQL_TYPE_MEDIUM_BLOB:
 
  case MYSQL_TYPE_LONG_BLOB:
 
...

This is not friendly to pluggable data types.

We'll split this code into a new method in Type_handler:

virtual void Column_definition_reuse_fix_attributes(THD *thd,
 
                                                    Column_definition *c,
 
                                                    const Field *field) const


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