fix: Added index to getGroupingValue

fetch-remote.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# --- Configuration ---
+# Change this to 'origin' if your target beta branch is hosted there instead of 'upstream'
+REMOTE="upstream" 
+TARGET_BRANCH="beta"
+# ---------------------
+
+echo "Fetching latest changes from $REMOTE..."
+git fetch $REMOTE
+
+# 1. Remember the branch you are currently working on
+CURRENT_BRANCH=$(git branch --show-current)
+
+# 2. Switch to the beta branch
+echo "Switching to $TARGET_BRANCH..."
+git checkout $TARGET_BRANCH
+
+# 3. Fast-forward the local beta branch to match the remote
+echo "Updating local $TARGET_BRANCH with $REMOTE/$TARGET_BRANCH..."
+if git merge --ff-only $REMOTE/$TARGET_BRANCH; then
+    echo "✅ $TARGET_BRANCH successfully updated."
+else
+    echo "❌ Error: Could not fast-forward. Do you have accidental local commits on $TARGET_BRANCH?"
+    # If this fails, you can force it to exactly match the remote by replacing the merge command with:
+    # git reset --hard $REMOTE/$TARGET_BRANCH
+    exit 1
+fi
+
+# 4. Switch back to your working branch (if you weren't already on beta)
+if [ "$CURRENT_BRANCH" != "$TARGET_BRANCH" ]; then
+    echo "Switching back to your working branch: $CURRENT_BRANCH..."
+    git checkout "$CURRENT_BRANCH"
+fi
+
+echo "Done!"

packages/react-table/package.json

@@ -63,8 +63,7 @@
     "build": "tsdown"
   },
   "dependencies": {
-    "@tanstack/react-store": "^0.11.0",
-    "@tanstack/table-core": "workspace:*"
+    "@tanstack/react-store": "^0.11.0"
   },
   "devDependencies": {
     "@eslint-react/eslint-plugin": "^5.9.2",
@@ -75,6 +74,7 @@
     "react": "^19.2.7"
   },
   "peerDependencies": {
+    "@tanstack/table-core": "workspace:*",
     "react": ">=18"
   }
 }

packages/table-core/src/core/columns/coreColumnsFeature.ts

@@ -7,6 +7,7 @@ import {
   table_getAllFlatColumnsById,
   table_getAllLeafColumns,
   table_getAllLeafColumnsById,
+  table_getCachedColumn,
   table_getColumn,
   table_getDefaultColumnDef,
 } from './coreColumnsFeature.utils'
@@ -68,6 +69,9 @@ export const coreColumnsFeature: TableFeature = {
       table_getColumn: {
         fn: (columnId) => table_getColumn(table, columnId),
       },
+      table_getCachedColumn: {
+        fn: (columnId) => table_getCachedColumn(table, columnId),
+      },
     })
   },
 }

packages/table-core/src/core/columns/coreColumnsFeature.types.ts

@@ -105,4 +105,8 @@ export interface Table_Columns<
    * Returns a single column by its ID.
    */
   getColumn: (columnId: string) => Column<TFeatures, TData, unknown> | undefined
+  /**
+   * Returns a single column by its ID, but cached via WeakMap.
+   */
+  getCachedColumn: (columnId: string) => Column<TFeatures, TData, unknown> | undefined
 }

packages/table-core/src/core/columns/coreColumnsFeature.utils.ts

@@ -273,3 +273,23 @@ export function table_getColumn<
 
   return column
 }
+
+export function table_getCachedColumn<
+  TFeatures extends TableFeatures,
+  TData extends RowData,
+>(
+  table: Table_Internal<TFeatures, TData>,
+  columnId: string,
+): Column<TFeatures, TData, unknown> | undefined {
+  const columnDefs = table.options.columns
+  const cache = table._columnCache;
+
+  let columnsById = cache.get(columnDefs)
+
+  if (!columnsById) {
+    columnsById = table.getAllFlatColumnsById()
+    cache.set(columnDefs, columnsById)
+  }
+
+  return columnsById[columnId]
+}

packages/table-core/src/core/table/constructTable.ts

@@ -63,6 +63,8 @@ export function constructTable<
     _rowModels: {},
     _rowModelFns: { aggregationFns, filterFns, sortFns },
     baseAtoms: {},
+    // Import diffs will make updating this hell -> any
+    _columnCache: new WeakMap<any, any>(),
     atoms: {},
   } as unknown as Table_Internal<TFeatures, TData>
 

packages/table-core/src/types/Table.ts

@@ -113,4 +113,5 @@ export interface Table_Internal<
   baseAtoms: BaseAtoms<TFeatures> & BaseAtoms_All
   atoms: Atoms<TFeatures> & Atoms_All
   store: ReadonlyStore<TableState<TFeatures>> & ReadonlyStore<TableState_All>
+  _columnCache: WeakMap<any, any>
 }