1// Copyright (C) 2025 The Android Open Source Project 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15import {sqlColumnId} from '../table/sql_column'; 16import type {TableColumn} from '../table/table_column'; 17import type {Aggregation} from './aggregations'; 18 19// Unique identifier for a pivot column. 20export function pivotId(p: TableColumn): string { 21 return sqlColumnId(p.column); 22} 23 24// Unique identifier for an aggregation. 25export function aggregationId(a: Aggregation): string { 26 // Count doesn't require a column. 27 if (a.op === 'count') return 'count'; 28 return `${a.op}(${sqlColumnId(a.column.column)})`; 29} 30