List of generateEqualitiesPartitionedBy() Examples

Examples of generateEqualitiesPartitionedBy()

com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()
Dumps the inference equalities as equality expressions that are partitioned by the symbolScope. All stored equalities are returned in a compact set and will be classified into three groups as determined by the symbol scope:
1. equalities that fit entirely within the symbol scope
2. equalities that fit entirely outside of the symbol scope
3. equalities that straddle the symbol scope
```
 Example: Stored Equalities: a = b = c d = e = f = g Symbol Scope: a, b, d, e Output EqualityPartition: Scope Equalities: a = b d = e Complement Scope Equalities f = g Scope Straddling Equalities a = c d = f 
```

Examples of com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()


            // Add the equalities from the inferences back in
            outerPushdownConjuncts.addAll(equalityPartition.getScopeEqualities());
            postJoinConjuncts.addAll(equalityPartition.getScopeComplementEqualities());
            postJoinConjuncts.addAll(equalityPartition.getScopeStraddlingEqualities());
            innerPushdownConjuncts.addAll(potentialNullSymbolInferenceWithoutInnerInferred.generateEqualitiesPartitionedBy(not(in(outerSymbols))).getScopeEqualities());


            return new OuterJoinPushDownResult(combineConjuncts(outerPushdownConjuncts.build()),
                    combineConjuncts(innerPushdownConjuncts.build()),
                    combineConjuncts(postJoinConjuncts.build()));
        }

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Examples of com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()

                }
            }


            // Add equalities from the inference back in
            leftPushDownConjuncts.addAll(allInferenceWithoutLeftInferred.generateEqualitiesPartitionedBy(in(leftSymbols)).getScopeEqualities());
            rightPushDownConjuncts.addAll(allInferenceWithoutRightInferred.generateEqualitiesPartitionedBy(not(in(leftSymbols))).getScopeEqualities());
            joinConjuncts.addAll(allInference.generateEqualitiesPartitionedBy(in(leftSymbols)).getScopeStraddlingEqualities()); // scope straddling equalities get dropped in as part of the join predicate


            // Since we only currently support equality in join conjuncts, factor out the non-equality conjuncts to a post-join filter
            List<Expression> joinConjunctsList = joinConjuncts.build();
            List<Expression> postJoinConjuncts = ImmutableList.copyOf(filter(joinConjunctsList, not(joinEqualityExpression(leftSymbols))));

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Examples of com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()

                    // Alter conjunct to include an OR filteringSourceJoinSymbol IS NULL disjunct
                    Expression rewrittenConjunctOrNull = expressionOrNullSymbols(equalTo(node.getFilteringSourceJoinSymbol())).apply(rewrittenConjunct);
                    filteringSourceConjuncts.add(rewrittenConjunctOrNull);
                }
            }
            EqualityInference.EqualityPartition joinInferenceEqualityPartition = joinInference.generateEqualitiesPartitionedBy(equalTo(node.getFilteringSourceJoinSymbol()));
            filteringSourceConjuncts.addAll(ImmutableList.copyOf(transform(joinInferenceEqualityPartition.getScopeEqualities(),
                    expressionOrNullSymbols(equalTo(node.getFilteringSourceJoinSymbol())))));


            // Push inheritedPredicates down to the source if they don't involve the semi join output
            EqualityInference inheritedInference = createEqualityInference(inheritedPredicate);

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Examples of com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()

                    postJoinConjuncts.add(conjunct);
                }
            }


            // Add the inherited equality predicates back in
            EqualityInference.EqualityPartition equalityPartition = inheritedInference.generateEqualitiesPartitionedBy(in(node.getSource().getOutputSymbols()));
            sourceConjuncts.addAll(equalityPartition.getScopeEqualities());
            postJoinConjuncts.addAll(equalityPartition.getScopeComplementEqualities());
            postJoinConjuncts.addAll(equalityPartition.getScopeStraddlingEqualities());


            PlanNode rewrittenSource = planRewriter.rewrite(node.getSource(), combineConjuncts(sourceConjuncts));

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Examples of com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()

                    postAggregationConjuncts.add(conjunct);
                }
            }


            // Add the equality predicates back in
            EqualityInference.EqualityPartition equalityPartition = equalityInference.generateEqualitiesPartitionedBy(in(node.getGroupBy()));
            pushdownConjuncts.addAll(equalityPartition.getScopeEqualities());
            postAggregationConjuncts.addAll(equalityPartition.getScopeComplementEqualities());
            postAggregationConjuncts.addAll(equalityPartition.getScopeStraddlingEqualities());


            PlanNode rewrittenSource = planRewriter.rewrite(node.getSource(), combineConjuncts(pushdownConjuncts));

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Examples of com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()


            // Add the equalities from the inferences back in
            outerPushdownConjuncts.addAll(equalityPartition.getScopeEqualities());
            postJoinConjuncts.addAll(equalityPartition.getScopeComplementEqualities());
            postJoinConjuncts.addAll(equalityPartition.getScopeStraddlingEqualities());
            innerPushdownConjuncts.addAll(potentialNullSymbolInferenceWithoutInnerInferred.generateEqualitiesPartitionedBy(not(in(outerSymbols))).getScopeEqualities());


            return new OuterJoinPushDownResult(combineConjuncts(outerPushdownConjuncts.build()),
                    combineConjuncts(innerPushdownConjuncts.build()),
                    combineConjuncts(postJoinConjuncts.build()));
        }

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Examples of com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()

                }
            }


            // Add equalities from the inference back in
            leftPushDownConjuncts.addAll(allInferenceWithoutLeftInferred.generateEqualitiesPartitionedBy(in(leftSymbols)).getScopeEqualities());
            rightPushDownConjuncts.addAll(allInferenceWithoutRightInferred.generateEqualitiesPartitionedBy(not(in(leftSymbols))).getScopeEqualities());
            joinConjuncts.addAll(allInference.generateEqualitiesPartitionedBy(in(leftSymbols)).getScopeStraddlingEqualities()); // scope straddling equalities get dropped in as part of the join predicate


            // Since we only currently support equality in join conjuncts, factor out the non-equality conjuncts to a post-join filter
            List<Expression> joinConjunctsList = joinConjuncts.build();
            List<Expression> postJoinConjuncts = ImmutableList.copyOf(filter(joinConjunctsList, not(joinEqualityExpression(leftSymbols))));

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Examples of com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()

                    // Alter conjunct to include an OR filteringSourceJoinSymbol IS NULL disjunct
                    Expression rewrittenConjunctOrNull = expressionOrNullSymbols(equalTo(node.getFilteringSourceJoinSymbol())).apply(rewrittenConjunct);
                    filteringSourceConjuncts.add(rewrittenConjunctOrNull);
                }
            }
            EqualityInference.EqualityPartition joinInferenceEqualityPartition = joinInference.generateEqualitiesPartitionedBy(equalTo(node.getFilteringSourceJoinSymbol()));
            filteringSourceConjuncts.addAll(ImmutableList.copyOf(transform(joinInferenceEqualityPartition.getScopeEqualities(),
                    expressionOrNullSymbols(equalTo(node.getFilteringSourceJoinSymbol())))));


            // Push inheritedPredicates down to the source if they don't involve the semi join output
            EqualityInference inheritedInference = createEqualityInference(inheritedPredicate);

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Examples of com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()

                    postJoinConjuncts.add(conjunct);
                }
            }


            // Add the inherited equality predicates back in
            EqualityInference.EqualityPartition equalityPartition = inheritedInference.generateEqualitiesPartitionedBy(in(node.getSource().getOutputSymbols()));
            sourceConjuncts.addAll(equalityPartition.getScopeEqualities());
            postJoinConjuncts.addAll(equalityPartition.getScopeComplementEqualities());
            postJoinConjuncts.addAll(equalityPartition.getScopeStraddlingEqualities());


            PlanNode rewrittenSource = planRewriter.rewrite(node.getSource(), combineConjuncts(sourceConjuncts));

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Examples of com.facebook.presto.sql.planner.EqualityInference.generateEqualitiesPartitionedBy()

                    postAggregationConjuncts.add(conjunct);
                }
            }


            // Add the equality predicates back in
            EqualityInference.EqualityPartition equalityPartition = equalityInference.generateEqualitiesPartitionedBy(in(node.getGroupBy()));
            pushdownConjuncts.addAll(equalityPartition.getScopeEqualities());
            postAggregationConjuncts.addAll(equalityPartition.getScopeComplementEqualities());
            postAggregationConjuncts.addAll(equalityPartition.getScopeStraddlingEqualities());


            PlanNode rewrittenSource = planRewriter.rewrite(node.getSource(), combineConjuncts(pushdownConjuncts));

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