set.reductions.html#var-count-distinct">count-distinct</a> </li><li> <a href="tech.v3.dataset.reductions.html#var-distinct">distinct</a> </li><li> <a href="tech.v3.dataset.reductions.html#var-distinct-int32">distinct-int32</a> </li><li> <a href="tech.v3.dataset.reductions.html#var-first-value">first-value</a> </li><li> <a href="tech.v3.dataset.reductions.html#var-group-by-column-agg">group-by-column-agg</a> </li><li> <a href="tech.v3.dataset.reductions.html#var-group-by-column-agg-rf">group-by-column-agg-rf