fix(merging): applying a performance improv for merging pipe

ChronosSF · ChronosSF · commit 4c7495e1adec · 2025-08-28T16:27:46.000+03:00
diff --git a/projects/igniteui-angular/src/lib/grids/grid/grid.pipes.ts b/projects/igniteui-angular/src/lib/grids/grid/grid.pipes.ts
@@ -90,7 +90,7 @@ export class IgxGridCellMergePipe implements PipeTransform {
         if (colsToMerge.length === 0) {
             return collection;
         }
-        if (!pinned && this.grid.pinning.rows !== RowPinningPosition.Bottom) {
+        if (this.grid.hasPinnedRecords && !pinned && this.grid.pinning.rows !== RowPinningPosition.Bottom) {
             activeRowIndexes = activeRowIndexes.map(x => x - this.grid.pinnedRecordsCount);
         }
         const result = DataUtil.merge(cloneArray(collection), colsToMerge, mergeStrategy, activeRowIndexes, this.grid);

Original file line number	Diff line number	Diff line change
`@@ -90,7 +90,7 @@ export class IgxGridCellMergePipe implements PipeTransform {`
`90`	`90`	`if (colsToMerge.length === 0) {`
`91`	`91`	`return collection;`
`92`	`92`	`}`
`93`		`- if (!pinned && this.grid.pinning.rows !== RowPinningPosition.Bottom) {`
	`93`	`+ if (this.grid.hasPinnedRecords && !pinned && this.grid.pinning.rows !== RowPinningPosition.Bottom) {`
`94`	`94`	`activeRowIndexes = activeRowIndexes.map(x => x - this.grid.pinnedRecordsCount);`
`95`	`95`	`}`
`96`	`96`	`const result = DataUtil.merge(cloneArray(collection), colsToMerge, mergeStrategy, activeRowIndexes, this.grid);`