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Item_aggregate_ref Class Reference
Inheritance diagram for Item_aggregate_ref:
Item_ref Item_ident Item

List of all members.

Public Member Functions

 Item_aggregate_ref (Name_resolution_context *context_arg, Item **item, const char *table_name_arg, const char *field_name_arg)
virtual void print (String *str, enum_query_type query_type)
virtual Ref_Type ref_type ()

Member Function Documentation

virtual void Item_aggregate_ref::print ( String str,
enum_query_type  query_type 
) [inline, virtual]

This method is used for to:

  • to generate a view definition query (SELECT-statement);
  • to generate a SQL-query for EXPLAIN EXTENDED;
  • to generate a SQL-query to be shown in INFORMATION_SCHEMA;
  • debug.

For more information about view definition query, INFORMATION_SCHEMA query and why they should be generated from the Item-tree,

See also:

Reimplemented from Item_ref.

The documentation for this class was generated from the following file:
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