diff --git a/src/paginate.ts b/src/paginate.ts
index 22a9e49..60fad22 100644
--- a/src/paginate.ts
+++ b/src/paginate.ts
@@ -302,11 +302,18 @@ export async function paginate<T extends ObjectLiteral>(
                         propertyPath.length > 1 &&
                         queryBuilder.expressionMap.mainAlias.metadata.hasRelationWithPropertyPath(propertyPath[0])
 
-                    const aliasColumn = hasRelation ? `${qb.alias}_${column}` : `${qb.alias}.${column}`
-
                     if (['postgres', 'cockroachdb'].includes(queryBuilder.connection.options.type)) {
+                        const alias = hasRelation ? `"${qb.alias}"_` : `"${qb.alias}".`
+                        let columns = ''
+
+                        for (const property of propertyPath) {
+                            columns += `"${property}".`
+                        }
+                        const aliasColumn = alias + columns.substring(0, columns.length - 1)
+
                         qb.orWhere(`${aliasColumn}::text ILIKE '%${query.search}%'`)
                     } else {
+                        const aliasColumn = hasRelation ? `${qb.alias}_${column}` : `${qb.alias}.${column}`
                         qb.orWhere(`UPPER(${aliasColumn}) LIKE UPPER('%${query.search}%')`)
                     }
                 }