protected RelDataType validateImpl() {
   final RelDataTypeFactory.FieldInfoBuilder builder = validator.getTypeFactory().builder();
   for (SqlMoniker moniker : validator.catalogReader.getAllSchemaObjectNames(names)) {
     final List<String> names1 = moniker.getFullyQualifiedNames();
     final SqlValidatorTable table = validator.catalogReader.getTable(names1);
     builder.add(Util.last(names1), table.getRowType());
   }
   return builder.build();
 }
Beispiel #2
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 public RelOptTable getTableForMember(List<String> names) {
   final SqlValidatorTable table = catalogReader.getTable(names);
   final RelDataType rowType = table.getRowType();
   final List<RelCollation> collationList = deduceMonotonicity(table);
   if (names.size() < 3) {
     String[] newNames2 = {"CATALOG", "SALES", ""};
     List<String> newNames = new ArrayList<String>();
     int i = 0;
     while (newNames.size() < newNames2.length) {
       newNames.add(i, newNames2[i]);
       ++i;
     }
     names = newNames;
   }
   return createColumnSet(table, names, rowType, collationList);
 }
Beispiel #3
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    private List<RelCollation> deduceMonotonicity(SqlValidatorTable table) {
      final RelDataType rowType = table.getRowType();
      final List<RelCollation> collationList = new ArrayList<RelCollation>();

      // Deduce which fields the table is sorted on.
      int i = -1;
      for (RelDataTypeField field : rowType.getFieldList()) {
        ++i;
        final SqlMonotonicity monotonicity = table.getMonotonicity(field.getName());
        if (monotonicity != SqlMonotonicity.NOT_MONOTONIC) {
          final RelFieldCollation.Direction direction =
              monotonicity.isDecreasing()
                  ? RelFieldCollation.Direction.DESCENDING
                  : RelFieldCollation.Direction.ASCENDING;
          collationList.add(
              RelCollationImpl.of(
                  new RelFieldCollation(
                      i, direction, RelFieldCollation.NullDirection.UNSPECIFIED)));
        }
      }
      return collationList;
    }