pip install tailslide

from tailslide import Median

Item.objects.aggregate(Median('price'))

from tailslide import Percentile

Request.objects.aggregate(Percentile('response_time', .95))

Order.objects.values('store').annotate(total=Median('total')).order_by('store')

from tailslide.mongoengine import TailslideQuerySet

class Item(Document):
    meta = {'queryset_class': TailslideQuerySet}

Item.objects.median('price')

Item.objects.percentile('price', .95)

git clone https://github.com/infusion/udf_infusion.git
cd udf_infusion
./configure --enable-functions="percentile_cont"
make
sudo make install
mysql <options> < load.sql

git clone https://github.com/ankane/tailslide.git
cd tailslide
pip install -r requirements.txt

# Postgres
createdb tailslide_test
ADAPTER=postgresql pytest tests/django

# SQLite
ADAPTER=sqlite pytest tests/django

# MariaDB
mysqladmin create tailslide_test
ADAPTER=mariadb pytest tests/django

# MySQL (install the extension first)
mysqladmin create tailslide_test
ADAPTER=mysql pytest tests/django

# SQL Server
docker run -e 'ACCEPT_EULA=Y' -e 'SA_PASSWORD=YourStrong!Passw0rd' -p 1433:1433 -d mcr.microsoft.com/mssql/server:2019-latest
docker exec -it <container-id> /opt/mssql-tools/bin/sqlcmd -S localhost -U SA -P YourStrong\!Passw0rd -Q "CREATE DATABASE tailslide_test"
ADAPTER=sqlserver pytest tests/django

# MongoDB
pytest tests/mongoengine