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mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-07-30 19:23:07 +03:00

MCOL-1201 Modify docs. Fix group concat bug

This commit is contained in:
David Hall
2018-05-15 13:15:45 -05:00
parent 06e9772310
commit c8c3b23e32
13 changed files with 75 additions and 51 deletions

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@ -3,7 +3,7 @@ mcsv1_udaf Introduction
mcsv1_udaf is a C++ API for writing User Defined Aggregate Functions (UDAF) and User Defined Analytic Functions (UDAnF) for the MariaDB Columstore engine.
In Columnstore 1.1.0, functions written using this API must be compiled into the udfsdk and udf_mysql libraries of the Columnstore code branch.
In Columnstore 1.2, functions written using this API must be compiled into the udfsdk and udf_mysql libraries of the Columnstore code branch.
The API has a number of features. The general theme is, there is a class that represents the function, there is a context under which the function operates, and there is a data store for intermediate values.
@ -18,5 +18,5 @@ The steps required to create a function are:
* :ref:`Compile udfsdk <compile>`.
* :ref:`Copy the compiled libraries <copylibs>` to the working directories.
In 1.1.0, Columnstore does not have a plugin framework, so the functions have to be compiled into the libraries that Columnstore already loads.
In 1.2, Columnstore does not have a plugin framework, so the functions have to be compiled into the libraries that Columnstore already loads.