Make Field Name Filter Case Insensitive

Signed-off-by: Suchit Sahoo <[email protected]>

src/plugins/discover/public/application/components/sidebar/lib/field_filter.ts

@@ -83,7 +83,8 @@ export function isFieldFiltered(
     field.type === '_source' ||
     field.scripted ||
     fieldCounts[field.name] > 0;
-  const matchName = !filterState.name || field.name.indexOf(filterState.name) !== -1;
+  const matchName =
+    !filterState.name || field.name.toLowerCase().indexOf(filterState.name.toLowerCase()) !== -1; // case insensitive matching name
 
   return matchFilter && isAggregatable && isSearchable && scriptedOrMissing && matchName;
 }