Method readColumns

app/src/main/java/androidx/room/FtsTableInfo.java:86–101

(SupportSQLiteDatabase database, String tableName)

    }

    @SuppressWarnings("TryFinallyCanBeTryWithResources")
    private static Set<String> readColumns(SupportSQLiteDatabase database, String tableName) {
        Cursor cursor = database.query("PRAGMA table_info(`" + tableName + "`)");
        Set<String> columns = new HashSet<>();
        try {
            if (cursor.getColumnCount() > 0) {
                int nameIndex = cursor.getColumnIndex("name");
                while (cursor.moveToNext()) {
                    columns.add(cursor.getString(nameIndex));
                }
            }
        } finally {
            cursor.close();
        }
        return columns;
    }

    @SuppressWarnings("TryFinallyCanBeTryWithResources")
    private static Set<String> readOptions(SupportSQLiteDatabase database, String tableName) {