improve queries with limit

packages/db/src/clickhouse-client.ts

@@ -56,6 +56,11 @@ export const ch = new Proxy(originalCh, {
               throw retryError; // Rethrow or handle as needed
             }
           } else {
+            if (args[0].query) {
+              console.log('FAILED QUERY:');
+              console.log(args[0].query);
+            }
+
             // Handle other errors or rethrow them
             throw error;
           }

packages/db/src/services/chart.service.ts

@@ -16,6 +16,8 @@ export function getChartSql({
   startDate,
   endDate,
   projectId,
+  chartType,
+  limit,
 }: IGetChartDataInput) {
   const { sb, join, getWhere, getFrom, getSelect, getOrderBy, getGroupBy } =
     createSqlBuilder();
@@ -59,6 +61,17 @@ export function getChartSql({
     sb.where.endDate = `created_at <= '${formatClickhouseDate(endDate)}'`;
   }
 
+  if (breakdowns.length > 0 && limit) {
+    sb.where.bar = `(${breakdowns.map((b) => b.name).join(',')}) IN (
+      SELECT ${breakdowns.map((b) => b.name).join(',')}
+      FROM ${TABLE_NAMES.events}
+      ${getWhere()}
+      GROUP BY ${breakdowns.map((b) => b.name).join(',')}
+      ORDER BY count(*) DESC
+      LIMIT ${limit}
+    )`;
+  }
+
   breakdowns.forEach((breakdown, index) => {
     const key = `label_${index}`;
     const value = breakdown.name.startsWith('properties.')