Add custom granularities support to time dimension and base query

Author: KSDaemon

packages/cubejs-schema-compiler/src/adapter/BaseQuery.js

@@ -2116,6 +2116,10 @@ export class BaseQuery {
     return this.evaluateSymbolSql(dimension.path()[0], dimension.path()[1], dimension.dimensionDefinition());
   }
 
+  dimensionGranularitySql(dimension) {
+    return this.evaluateSymbolSql(dimension.path()[0], dimension.path()[1], dimension.dimensionDefinition(), null, ['granularities', dimension.granularity]);
+  }
+
   segmentSql(segment) {
     return this.evaluateSymbolSql(segment.path()[0], segment.path()[1], segment.segmentDefinition());
   }
@@ -2172,12 +2176,12 @@ export class BaseQuery {
     return this.evaluateSymbolContext || {};
   }
 
-  evaluateSymbolSql(cubeName, name, symbol, memberExpressionType) {
+  evaluateSymbolSql(cubeName, name, symbol, memberExpressionType, childPropPathArray) {
     const isMemberExpr = !!memberExpressionType;
     if (!memberExpressionType) {
       this.pushMemberNameForCollectionIfNecessary(cubeName, name);
     }
-    const memberPathArray = [cubeName, name];
+    const memberPathArray = [cubeName, name].concat(childPropPathArray ?? []);
     const memberPath = this.cubeEvaluator.pathFromArray(memberPathArray);
     let type = memberExpressionType;
     if (!type && this.cubeEvaluator.isMeasure(memberPathArray)) {
@@ -2282,7 +2286,17 @@ export class BaseQuery {
             this.autoPrefixAndEvaluateSql(cubeName, symbol.longitude.sql, isMemberExpr)
           ]);
         } else {
-          let res = this.autoPrefixAndEvaluateSql(cubeName, symbol.sql, isMemberExpr);
+          let res;
+
+          // TODO Temporarily placed it here, but maybe this should be moved level up and processed in
+          // more generalized way to support nested properties not only on dimension level
+          if (childPropPathArray && childPropPathArray.length > 0) {
+            const childProperty = this.cubeEvaluator.byPath('dimensions', memberPathArray);
+            res = this.autoPrefixAndEvaluateSql(cubeName, childProperty.sql, isMemberExpr);
+          } else {
+            res = this.autoPrefixAndEvaluateSql(cubeName, symbol.sql, isMemberExpr);
+          }
+
           if (symbol.shiftInterval) {
             res = `(${this.addTimestampInterval(res, symbol.shiftInterval)})`;
           }

packages/cubejs-schema-compiler/src/adapter/BaseTimeDimension.ts

@@ -13,7 +13,9 @@ export class BaseTimeDimension extends BaseFilter {
 
   public readonly isPredefined: boolean;
 
-  public readonly baseGranularity: string;
+  public readonly baseGranularity: string | undefined;
+
+  public readonly granularitySql: Function | undefined;
 
   public readonly boundaryDateRange: any;
 
@@ -31,9 +33,14 @@ export class BaseTimeDimension extends BaseFilter {
     this.dateRange = timeDimension.dateRange;
     this.granularity = timeDimension.granularity;
     this.isPredefined = isPredefinedGranularity(this.granularity);
-    this.baseGranularity = this.query.cubeEvaluator
-      .byPath('dimensions', timeDimension.dimension)
-      .granularities?.[this.granularity]?.baseGranularity;
+    if (!this.isPredefined) {
+      const customGranularity = this.query.cubeEvaluator
+        .byPath('dimensions', timeDimension.dimension)
+        .granularities?.[this.granularity];
+
+      this.baseGranularity = customGranularity?.baseGranularity;
+      this.granularitySql = customGranularity?.sql;
+    }
     this.boundaryDateRange = timeDimension.boundaryDateRange;
     this.shiftInterval = timeDimension.shiftInterval;
   }
@@ -95,12 +102,22 @@ export class BaseTimeDimension extends BaseFilter {
       if (context.rollupGranularity === this.granularity) {
         return super.dimensionSql();
       }
-      return this.query.timeGroupedColumn(granularity, this.query.dimensionSql(this));
+      if (this.isPredefined || !this.granularity) {
+        return this.query.timeGroupedColumn(granularity, this.query.dimensionSql(this));
+      } else {
+        return this.query.dimensionGranularitySql(this);
+      }
     }
+
     if (context.ungrouped) {
       return this.convertedToTz();
     }
-    return this.query.timeGroupedColumn(granularity, this.convertedToTz());
+
+    if (this.isPredefined) {
+      return this.query.timeGroupedColumn(granularity, this.convertedToTz());
+    } else {
+      return this.granularityConvertedToTz();
+    }
   }
 
   public dimensionDefinition(): DimensionDefinition | SegmentDefinition {
@@ -115,7 +132,11 @@ export class BaseTimeDimension extends BaseFilter {
   }
 
   public convertedToTz() {
-    return this.query.convertTz(this.query.dimensionSql(this));
+    return this.query.convertTz(`${this.query.dimensionSql(this)}`);
+  }
+
+  public granularityConvertedToTz() {
+    return this.query.convertTz(`(${this.query.dimensionGranularitySql(this)})`);
   }
 
   public filterToWhere() {