Examples with Expression com.facebook.presto.sql.tree.Expression used on opensource projects

Example 51 with Expression

use of com.facebook.presto.sql.tree.Expression in project presto by prestodb.

the class OutputMatcher method detailMatches.

@Override
public MatchResult detailMatches(PlanNode node, Session session, Metadata metadata, SymbolAliases symbolAliases) {
    int i = 0;
    for (String alias : aliases) {
        Expression expression = symbolAliases.get(alias);
        boolean found = false;
        while (i < node.getOutputSymbols().size()) {
            Symbol outputSymbol = node.getOutputSymbols().get(i++);
            if (expression.equals(outputSymbol.toSymbolReference())) {
                found = true;
                break;
            }
        }
        if (!found) {
            return NO_MATCH;
        }
    }
    return match();
}

Example 52 with Expression

use of com.facebook.presto.sql.tree.Expression in project presto by prestodb.

the class TestEffectivePredicateExtractor method testSemiJoin.

@Test
public void testSemiJoin() throws Exception {
    PlanNode node = new SemiJoinNode(newId(), filter(baseTableScan, and(greaterThan(AE, bigintLiteral(10)), lessThan(AE, bigintLiteral(100)))), filter(baseTableScan, greaterThan(AE, bigintLiteral(5))), A, B, C, Optional.empty(), Optional.empty(), Optional.empty());
    Expression effectivePredicate = EffectivePredicateExtractor.extract(node, TYPES);
    // Currently, only pull predicates through the source plan
    assertEquals(normalizeConjuncts(effectivePredicate), normalizeConjuncts(and(greaterThan(AE, bigintLiteral(10)), lessThan(AE, bigintLiteral(100)))));
}

Example 53 with Expression

use of com.facebook.presto.sql.tree.Expression in project presto by prestodb.

the class TestEffectivePredicateExtractor method testWindow.

@Test
public void testWindow() throws Exception {
    PlanNode node = new WindowNode(newId(), filter(baseTableScan, and(equals(AE, BE), equals(BE, CE), lessThan(CE, bigintLiteral(10)))), new WindowNode.Specification(ImmutableList.of(A), ImmutableList.of(A), ImmutableMap.of(A, SortOrder.ASC_NULLS_LAST)), ImmutableMap.of(), Optional.empty(), ImmutableSet.of(), 0);
    Expression effectivePredicate = EffectivePredicateExtractor.extract(node, TYPES);
    // Pass through
    assertEquals(normalizeConjuncts(effectivePredicate), normalizeConjuncts(equals(AE, BE), equals(BE, CE), lessThan(CE, bigintLiteral(10))));
}

Example 54 with Expression

use of com.facebook.presto.sql.tree.Expression in project presto by prestodb.

the class TestEffectivePredicateExtractor method testLeftJoin.

@Test
public void testLeftJoin() throws Exception {
    ImmutableList.Builder<JoinNode.EquiJoinClause> criteriaBuilder = ImmutableList.builder();
    criteriaBuilder.add(new JoinNode.EquiJoinClause(A, D));
    criteriaBuilder.add(new JoinNode.EquiJoinClause(B, E));
    List<JoinNode.EquiJoinClause> criteria = criteriaBuilder.build();
    Map<Symbol, ColumnHandle> leftAssignments = Maps.filterKeys(scanAssignments, Predicates.in(ImmutableList.of(A, B, C)));
    TableScanNode leftScan = new TableScanNode(newId(), DUAL_TABLE_HANDLE, ImmutableList.copyOf(leftAssignments.keySet()), leftAssignments, Optional.empty(), TupleDomain.all(), null);
    Map<Symbol, ColumnHandle> rightAssignments = Maps.filterKeys(scanAssignments, Predicates.in(ImmutableList.of(D, E, F)));
    TableScanNode rightScan = new TableScanNode(newId(), DUAL_TABLE_HANDLE, ImmutableList.copyOf(rightAssignments.keySet()), rightAssignments, Optional.empty(), TupleDomain.all(), null);
    FilterNode left = filter(leftScan, and(lessThan(BE, AE), lessThan(CE, bigintLiteral(10)), equals(GE, bigintLiteral(10))));
    FilterNode right = filter(rightScan, and(equals(DE, EE), lessThan(FE, bigintLiteral(100))));
    PlanNode node = new JoinNode(newId(), JoinNode.Type.LEFT, left, right, criteria, ImmutableList.<Symbol>builder().addAll(left.getOutputSymbols()).addAll(right.getOutputSymbols()).build(), Optional.empty(), Optional.empty(), Optional.empty(), Optional.empty());
    Expression effectivePredicate = EffectivePredicateExtractor.extract(node, TYPES);
    // All right side symbols having output symbols should be checked against NULL
    assertEquals(normalizeConjuncts(effectivePredicate), normalizeConjuncts(lessThan(BE, AE), lessThan(CE, bigintLiteral(10)), or(equals(DE, EE), and(isNull(DE), isNull(EE))), or(lessThan(FE, bigintLiteral(100)), isNull(FE)), or(equals(AE, DE), isNull(DE)), or(equals(BE, EE), isNull(EE))));
}

Example 55 with Expression

use of com.facebook.presto.sql.tree.Expression in project presto by prestodb.

the class TestEffectivePredicateExtractor method testFilter.

@Test
public void testFilter() throws Exception {
    PlanNode node = filter(baseTableScan, and(greaterThan(AE, new FunctionCall(QualifiedName.of("rand"), ImmutableList.of())), lessThan(BE, bigintLiteral(10))));
    Expression effectivePredicate = EffectivePredicateExtractor.extract(node, TYPES);
    // Non-deterministic functions should be purged
    assertEquals(normalizeConjuncts(effectivePredicate), normalizeConjuncts(lessThan(BE, bigintLiteral(10))));
}