Esempio n. 1
0
 @Override
 public RelNode convert(RelNode rel) {
   LogicalJoin join = (LogicalJoin) rel;
   final List<RelNode> newInputs = new ArrayList<>();
   for (RelNode input : join.getInputs()) {
     if (!(input.getConvention() == getOutTrait())) {
       input = convert(input, input.getTraitSet().replace(out));
     }
     newInputs.add(input);
   }
   if (!canJoinOnCondition(join.getCondition())) {
     return null;
   }
   try {
     return new JdbcJoin(
         join.getCluster(),
         join.getTraitSet().replace(out),
         newInputs.get(0),
         newInputs.get(1),
         join.getCondition(),
         join.getVariablesSet(),
         join.getJoinType());
   } catch (InvalidRelException e) {
     LOGGER.fine(e.toString());
     return null;
   }
 }
Esempio n. 2
0
 public RelNode convert(RelNode rel) {
   final LogicalAggregate agg = (LogicalAggregate) rel;
   if (agg.getGroupSets().size() != 1) {
     // GROUPING SETS not supported; see
     // [CALCITE-734] Push GROUPING SETS to underlying SQL via JDBC adapter
     return null;
   }
   final RelTraitSet traitSet = agg.getTraitSet().replace(out);
   try {
     return new JdbcAggregate(
         rel.getCluster(),
         traitSet,
         convert(agg.getInput(), out),
         agg.indicator,
         agg.getGroupSet(),
         agg.getGroupSets(),
         agg.getAggCallList());
   } catch (InvalidRelException e) {
     LOGGER.fine(e.toString());
     return null;
   }
 }