use APPROX_COUNT_DISTINCT for size queries (#33)

heavyai · Jun 7, 2017 · 9340d15 · 9340d15
1 parent 551d420
commit 9340d15
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/modules/query.js b/src/modules/query.js
@@ -4,7 +4,7 @@ export function formGroupSizeQuery(writeFilter, state, ignoreFilters) {
  if (d > 0) {
  query += ",";
  }
- query += "COUNT(DISTINCT " + state.dimArray[d] + ") AS n";
+ query += "APPROX_COUNT_DISTINCT(" + state.dimArray[d] + ") AS n";
  if (state.multiDim) {
  query += d.toString();
  }