MARKOV_GENERATE

Using the model trained by MARKOV_TRAIN to anonymize the dataset.

Syntax

FEISTEL_OBFUSCATE( <model>, <params>, <seed>, <determinator> )

Arguments

Arguments	Description
model	The return model of markov_train
params	Json string: {"order": 5, "sliding_window_size": 8} order：order of markov model to generate strings， size of a sliding window in a source string - its hash is used as a seed for RNG in markov model
seed	seed
determinator	Source string

Return Type

String.

Examples

create table model as
select markov_train(concat('bar', number::string)) as bar from numbers(100);

select markov_generate(bar,'{"order":5,"sliding_window_size":8}', 151, (number+100000)::string) as generate
from numbers(5), model;
+-----------+
| generate  |
+-----------+
│ bar95     │
│ bar64     │
│ bar85     │
│ bar56     │
│ bar95     │
+-----------+