fix(cube): Meta type for switch dimension

packages/cubejs-schema-compiler/src/compiler/CubeToMetaTransformer.js

@@ -103,7 +103,7 @@ export class CubeToMetaTransformer {
           R.map((nameToDimension) => ({
             name: `${cube.name}.${nameToDimension[0]}`,
             title: this.title(cubeTitle, nameToDimension),
-            type: nameToDimension[1].type,
+            type: this.dimensionDataType(nameToDimension[1].type),
             description: nameToDimension[1].description,
             shortTitle: this.title(cubeTitle, nameToDimension, true),
             suggestFilterValues:
@@ -197,6 +197,10 @@ export class CubeToMetaTransformer {
     return defaultValue;
   }
 
+  dimensionDataType(dimensionType) {
+    return dimensionType === 'switch' ? 'string' : dimensionType;
+  }
+
   measureConfig(cubeName, cubeTitle, nameToMetric) {
     const name = `${cubeName}.${nameToMetric[0]}`;
     // Support both old 'drillMemberReferences' and new 'drillMembers' keys

packages/cubejs-schema-compiler/test/unit/fixtures/switch-dimension.yml

@@ -0,0 +1,28 @@
+cubes:
+  - name: orders
+    sql: SELECT * FROM orders
+
+    measures:
+      - name: count
+        sql: id
+        type: count
+    dimensions:
+      - name: id
+        sql: id
+        type: number
+        primary_key: true
+
+      - name: number
+        sql: number
+        type: number
+
+      - name: currency
+        type: switch
+        values:
+          - USD
+          - EUR
+          - GBP
+
+      - name: status
+        sql: status
+        type: string

packages/cubejs-schema-compiler/test/unit/switch-dimension.test.ts

@@ -0,0 +1,27 @@
+import fs from 'fs';
+import path from 'path';
+
+import { CubeToMetaTransformer } from 'src/compiler/CubeToMetaTransformer';
+import { prepareYamlCompiler } from './PrepareCompiler';
+
+describe('Switch Dimension', () => {
+  it('Switch dimension meta type', async () => {
+    const modelContent = fs.readFileSync(
+      path.join(process.cwd(), '/test/unit/fixtures/switch-dimension.yml'),
+      'utf8'
+    );
+    const prepared = prepareYamlCompiler(modelContent);
+    const { metaTransformer } = prepared;
+    const { compiler } = prepared;
+    await compiler.compile();
+
+    const cube = metaTransformer.cubes[0];
+    const numberDim = cube.config.dimensions.find((d) => d.name === 'orders.number');
+    const statusDim = cube.config.dimensions.find((d) => d.name === 'orders.status');
+    const currencyDim = cube.config.dimensions.find((d) => d.name === 'orders.currency');
+
+    expect(numberDim.type).toBe('number');
+    expect(statusDim.type).toBe('string');
+    expect(currencyDim.type).toBe('string');
+  });
+});