demo: upgrade hightable

demo/App.tsx

@@ -102,7 +102,7 @@ function parquetDataFrame(from: AsyncBufferFrom, metadata: FileMetaData): DataFr
      */
     rows(rowStart, rowEnd, orderBy) {
       console.log(`reading rows ${rowStart}-${rowEnd}`, orderBy)
-      return parquetQueryWorker({ asyncBuffer: from, metadata, rowStart, rowEnd, orderBy })
+      return parquetQueryWorker({ from, metadata, rowStart, rowEnd, orderBy })
     },
     sortable: true,
   }

demo/workers/parquetWorker.js

@@ -3,8 +3,8 @@ import { parquetQuery } from '../../src/query.js'
 import { asyncBufferFrom } from './parquetWorkerClient.js'
 
 self.onmessage = async ({ data }) => {
-  const { metadata, asyncBuffer, rowStart, rowEnd, orderBy, queryId, chunks } = data
-  const file = await asyncBufferFrom(asyncBuffer)
+  const { metadata, from, rowStart, rowEnd, orderBy, columns, queryId, chunks } = data
+  const file = await asyncBufferFrom(from)
   /**
    * @typedef {import('../../src/hyparquet.js').ColumnData} ColumnData
    * @type {((chunk: ColumnData) => void) | undefined}
@@ -12,7 +12,7 @@ self.onmessage = async ({ data }) => {
   const onChunk = chunks ? chunk => self.postMessage({ chunk, queryId }) : undefined
   try {
     const result = await parquetQuery({
-      metadata, file, rowStart, rowEnd, orderBy, compressors, onChunk,
+      metadata, file, rowStart, rowEnd, orderBy, columns, compressors, onChunk,
     })
     self.postMessage({ result, queryId })
   } catch (error) {

demo/workers/parquetWorkerClient.ts

@@ -15,47 +15,56 @@ export type AsyncBufferFrom = AsyncBufferFromFile | AsyncBufferFromUrl
 
 // Same as ParquetReadOptions, but AsyncBufferFrom instead of AsyncBuffer
 interface ParquetReadWorkerOptions extends Omit<ParquetReadOptions, 'file'> {
-  asyncBuffer: AsyncBufferFrom
+  from: AsyncBufferFrom
   orderBy?: string
 }
 
 let worker: Worker | undefined
 let nextQueryId = 0
-const pending = new Map<number, { resolve: (value: any) => void, reject: (error: any) => void }>()
+interface QueryAgent {
+  resolve: (value: any) => void
+  reject: (error: any) => void
+  onChunk?: (chunk: any) => void
+}
+const pending = new Map<number, QueryAgent>()
+
+function getWorker() {
+  if (!worker) {
+    worker = new Worker(new URL('demo/workers/worker.min.js', import.meta.url))
+    worker.onmessage = ({ data }) => {
+      const { resolve, reject, onChunk } = pending.get(data.queryId)!
+      if (data.error) {
+        reject(data.error)
+      } else if (data.result) {
+        resolve(data.result)
+      } else if (data.chunk) {
+        onChunk?.(data.chunk)
+      } else {
+        reject(new Error('Unexpected message from worker'))
+      }
+    }
+  }
+  return worker
+}
 
 /**
  * Presents almost the same interface as parquetRead, but runs in a worker.
  * This is useful for reading large parquet files without blocking the main thread.
- * Instead of taking an AsyncBuffer, it takes a FileContent, because it needs
+ * Instead of taking an AsyncBuffer, it takes a AsyncBufferFrom, because it needs
  * to be serialized to the worker.
  */
 export function parquetQueryWorker(
-  { metadata, asyncBuffer, rowStart, rowEnd, orderBy, onChunk }: ParquetReadWorkerOptions
+  { metadata, from, rowStart, rowEnd, orderBy, onChunk }: ParquetReadWorkerOptions
 ): Promise<Record<string, any>[]> {
   return new Promise((resolve, reject) => {
     const queryId = nextQueryId++
-    pending.set(queryId, { resolve, reject })
-    // Create a worker
-    if (!worker) {
-      worker = new Worker(new URL('demo/workers/worker.min.js', import.meta.url))
-      worker.onmessage = ({ data }) => {
-        const { resolve, reject } = pending.get(data.queryId)!
-        // Convert postmessage data to callbacks
-        if (data.error) {
-          reject(data.error)
-        } else if (data.result) {
-          resolve(data.result)
-        } else if (data.chunk) {
-          onChunk?.(data.chunk)
-        } else {
-          reject(new Error('Unexpected message from worker'))
-        }
-      }
-    }
+    pending.set(queryId, { resolve, reject, onChunk })
+    const worker = getWorker()
+
     // If caller provided an onChunk callback, worker will send chunks as they are parsed
     const chunks = onChunk !== undefined
     worker.postMessage({
-      queryId, metadata, asyncBuffer, rowStart, rowEnd, orderBy, chunks
+      queryId, metadata, from, rowStart, rowEnd, orderBy, chunks,
     })
   })
 }

package.json

@@ -32,20 +32,20 @@
     "@rollup/plugin-replace": "6.0.1",
     "@rollup/plugin-terser": "0.4.4",
     "@rollup/plugin-typescript": "12.1.1",
-    "@types/node": "22.7.9",
+    "@types/node": "22.8.2",
     "@types/react": "18.3.12",
     "@types/react-dom": "18.3.1",
-    "@vitest/coverage-v8": "2.1.3",
+    "@vitest/coverage-v8": "2.1.4",
     "eslint": "9.13.0",
     "eslint-plugin-jsdoc": "50.4.3",
-    "hightable": "0.6.0",
+    "hightable": "0.6.3",
     "http-server": "14.1.1",
     "hyparquet-compressors": "0.1.4",
     "react": "18.3.1",
     "react-dom": "18.3.1",
-    "rollup": "4.24.0",
+    "rollup": "4.24.2",
     "typescript": "5.6.3",
-    "typescript-eslint": "8.11.0",
-    "vitest": "2.1.3"
+    "typescript-eslint": "8.12.1",
+    "vitest": "2.1.4"
   }
 }