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mariadb-columnstore-engine/utils/udfsdk/docs/source/reference/api.rst
David Hall be4a413091 MCOL-523 UDAF documentation
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API Reference

The UDAF API consists of a set of classes and structures used to implement a MariaDB Columnstore UDAF and/or UDAnF.

The classes and structures are:

  • class UDAFMap
  • struct UserData
  • class mcsv1Context
  • struct ColumnDatum
  • class mcsv1_UDAF

The following Columnstore classes are also used:

  • execplan::CalpontSystemCatalog::ColDataType
  • messageqcpp::ByteStream

We also define COL_TYPES as a vector of pairs containing the column name and it's type.