private Frame getFrame(RelNode r, boolean safe) { final Frame frame = map.get(r); if (frame == null && safe) { return new Frame(r, r, ImmutableSortedMap.of(), identityMap(r.getRowType().getFieldCount())); } return frame; }
private Frame getFrame(RelNode r, boolean safe) { final Frame frame = map.get(r); if (frame == null && safe) { return new Frame(r, r, ImmutableSortedMap.of(), identityMap(r.getRowType().getFieldCount())); } return frame; }
private Frame getFrame(RelNode r, boolean safe) { final Frame frame = map.get(r); if (frame == null && safe) { return new Frame(r, r, ImmutableSortedMap.<CorDef, Integer>of(), identityMap(r.getRowType().getFieldCount())); } return frame; }
/** Fallback if none of the other {@code decorrelateRel} methods match. */ public Frame decorrelateRel(RelNode rel) { RelNode newRel = rel.copy(rel.getTraitSet(), rel.getInputs()); if (rel.getInputs().size() > 0) { List<RelNode> oldInputs = rel.getInputs(); List<RelNode> newInputs = new ArrayList<>(); for (int i = 0; i < oldInputs.size(); ++i) { final Frame frame = getInvoke(oldInputs.get(i), rel); if (frame == null || !frame.corDefOutputs.isEmpty()) { // if input is not rewritten, or if it produces correlated // variables, terminate rewrite return null; } newInputs.add(frame.r); newRel.replaceInput(i, frame.r); } if (!Util.equalShallow(oldInputs, newInputs)) { newRel = rel.copy(rel.getTraitSet(), newInputs); } } // the output position should not change since there are no corVars // coming from below. return register(rel, newRel, identityMap(rel.getRowType().getFieldCount()), ImmutableSortedMap.of()); }
/** Fallback if none of the other {@code decorrelateRel} methods match. */ public Frame decorrelateRel(RelNode rel) { RelNode newRel = rel.copy(rel.getTraitSet(), rel.getInputs()); if (rel.getInputs().size() > 0) { List<RelNode> oldInputs = rel.getInputs(); List<RelNode> newInputs = new ArrayList<>(); for (int i = 0; i < oldInputs.size(); ++i) { final Frame frame = getInvoke(oldInputs.get(i), rel); if (frame == null || !frame.corDefOutputs.isEmpty()) { // if input is not rewritten, or if it produces correlated // variables, terminate rewrite return null; } newInputs.add(frame.r); newRel.replaceInput(i, frame.r); } if (!Util.equalShallow(oldInputs, newInputs)) { newRel = rel.copy(rel.getTraitSet(), newInputs); } } // the output position should not change since there are no corVars // coming from below. return register(rel, newRel, identityMap(rel.getRowType().getFieldCount()), ImmutableSortedMap.of()); }
/** Fallback if none of the other {@code decorrelateRel} methods match. */ public Frame decorrelateRel(RelNode rel) { RelNode newRel = rel.copy(rel.getTraitSet(), rel.getInputs()); if (rel.getInputs().size() > 0) { List<RelNode> oldInputs = rel.getInputs(); List<RelNode> newInputs = Lists.newArrayList(); for (int i = 0; i < oldInputs.size(); ++i) { final Frame frame = getInvoke(oldInputs.get(i), rel); if (frame == null || !frame.corDefOutputs.isEmpty()) { // if input is not rewritten, or if it produces correlated // variables, terminate rewrite return null; } newInputs.add(frame.r); newRel.replaceInput(i, frame.r); } if (!Util.equalShallow(oldInputs, newInputs)) { newRel = rel.copy(rel.getTraitSet(), newInputs); } } // the output position should not change since there are no corVars // coming from below. return register(rel, newRel, identityMap(rel.getRowType().getFieldCount()), ImmutableSortedMap.<CorDef, Integer>of()); }