tests/cql3: add tests for SELECT DISTINCT
tests/cql3: add tests for SELECT DISTINCT

Signed-off-by: Paweł Dziepak <e29bb3265626c60caf76d587cabdfcd8b379ef80@cloudius-systems.com>

aruanruan/scylla,bowlofstew/scylla,dwdm/scylla,asias/scylla,linearregression/scylla,shaunstanislaus/scylla,avikivity/scylla,kangkot/scylla,wildinto/scylla,scylladb/scylla,avikivity/scylla,phonkee/scylla,rluta/scylla,respu/scylla,stamhe/scylla,avikivity/scylla,stamhe/scylla,respu/scylla,glommer/scylla,acbellini/scylla,tempbottle/scylla,phonkee/scylla,duarten/scylla,eklitzke/scylla,aruanruan/scylla,justintung/scylla,senseb/scylla,duarten/scylla,duarten/scylla,phonkee/scylla,capturePointer/scylla,eklitzke/scylla,acbellini/scylla,rluta/scylla,glommer/scylla,linearregression/scylla,respu/scylla,wildinto/scylla,gwicke/scylla,victorbriz/scylla,kjniemi/scylla,rentongzhang/scylla,capturePointer/scylla,scylladb/scylla,shaunstanislaus/scylla,kangkot/scylla,eklitzke/scylla,kjniemi/scylla,asias/scylla,scylladb/scylla,justintung/scylla,rentongzhang/scylla,kjniemi/scylla,bowlofstew/scylla,kangkot/scylla,gwicke/scylla,guiquanz/scylla,justintung/scylla,tempbottle/scylla,senseb/scylla,dwdm/scylla,tempbottle/scylla,stamhe/scylla,rentongzhang/scylla,aruanruan/scylla,asias/scylla,guiquanz/scylla,raphaelsc/scylla,senseb/scylla,guiquanz/scylla,gwicke/scylla,scylladb/scylla,linearregression/scylla,shaunstanislaus/scylla,raphaelsc/scylla,bowlofstew/scylla,raphaelsc/scylla,glommer/scylla,victorbriz/scylla,wildinto/scylla,rluta/scylla,victorbriz/scylla,capturePointer/scylla,dwdm/scylla,acbellini/scylla