docs: private static int generateCrudPKeyWhereClause(Column partitioncolumn,
              Constraint pkey, StringBuilder sb)
      {
          // Sort the catalog index columns by index column order.
          ArrayList<ColumnRef> indexColumns = new ArrayList<ColumnRef>(pkey.getIndex().getColumns().size());
          for (ColumnRef c : pkey.getIndex().getColumns()) {
              indexColumns.add(c);
          }
          Collections.sort(indexColumns, new ColumnRefComparator());
  
          boolean first = true;
          int partitionOffset = -1;
  
          sb.append(" WHERE ");
          for (ColumnRef pkc : indexColumns) {
              if (!first) sb.append(" AND ");
              first = false;
              sb.append("(" + pkc.getColumn().getName() + " = ?" + ")");
              if (pkc.getColumn() == partitioncolumn) {
                  partitionOffset = pkc.getIndex();
              }
          }
          return partitionOffset;
  
      }