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

Example 11 with ComparisonExpression

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

the class TestSqlParser method testExists.

@Test
public void testExists() {
    assertStatement("SELECT EXISTS(SELECT 1)", simpleQuery(selectList(exists(simpleQuery(selectList(new LongLiteral("1")))))));
    assertStatement("SELECT EXISTS(SELECT 1) = EXISTS(SELECT 2)", simpleQuery(selectList(new ComparisonExpression(ComparisonExpressionType.EQUAL, exists(simpleQuery(selectList(new LongLiteral("1")))), exists(simpleQuery(selectList(new LongLiteral("2"))))))));
    assertStatement("SELECT NOT EXISTS(SELECT 1) = EXISTS(SELECT 2)", simpleQuery(selectList(new NotExpression(new ComparisonExpression(ComparisonExpressionType.EQUAL, exists(simpleQuery(selectList(new LongLiteral("1")))), exists(simpleQuery(selectList(new LongLiteral("2")))))))));
    assertStatement("SELECT (NOT EXISTS(SELECT 1)) = EXISTS(SELECT 2)", simpleQuery(selectList(new ComparisonExpression(ComparisonExpressionType.EQUAL, new NotExpression(exists(simpleQuery(selectList(new LongLiteral("1"))))), exists(simpleQuery(selectList(new LongLiteral("2"))))))));
}

Example 12 with ComparisonExpression

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

the class TestEqualityInference method equalityAsSet.

private static Set<Expression> equalityAsSet(Expression expression) {
    Preconditions.checkArgument(expression instanceof ComparisonExpression);
    ComparisonExpression comparisonExpression = (ComparisonExpression) expression;
    Preconditions.checkArgument(comparisonExpression.getType() == EQUAL);
    return ImmutableSet.of(comparisonExpression.getLeft(), comparisonExpression.getRight());
}

Example 13 with ComparisonExpression

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

the class TestDomainTranslator method testFromFlippedBasicComparisons.

@Test
public void testFromFlippedBasicComparisons() throws Exception {
    // Test out the extraction of all basic comparisons where the reference literal ordering is flipped
    ComparisonExpression originalExpression = comparison(GREATER_THAN, bigintLiteral(2L), C_BIGINT.toSymbolReference());
    ExtractionResult result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_BIGINT, Domain.create(ValueSet.ofRanges(Range.lessThan(BIGINT, 2L)), false))));
    originalExpression = comparison(GREATER_THAN_OR_EQUAL, bigintLiteral(2L), C_BIGINT.toSymbolReference());
    result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_BIGINT, Domain.create(ValueSet.ofRanges(Range.lessThanOrEqual(BIGINT, 2L)), false))));
    originalExpression = comparison(LESS_THAN, bigintLiteral(2L), C_BIGINT.toSymbolReference());
    result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_BIGINT, Domain.create(ValueSet.ofRanges(Range.greaterThan(BIGINT, 2L)), false))));
    originalExpression = comparison(LESS_THAN_OR_EQUAL, bigintLiteral(2L), C_BIGINT.toSymbolReference());
    result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_BIGINT, Domain.create(ValueSet.ofRanges(Range.greaterThanOrEqual(BIGINT, 2L)), false))));
    originalExpression = comparison(EQUAL, bigintLiteral(2L), C_BIGINT.toSymbolReference());
    result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_BIGINT, Domain.create(ValueSet.ofRanges(Range.equal(BIGINT, 2L)), false))));
    originalExpression = comparison(EQUAL, colorLiteral(COLOR_VALUE_1), C_COLOR.toSymbolReference());
    result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_COLOR, Domain.create(ValueSet.of(COLOR, COLOR_VALUE_1), false))));
    originalExpression = comparison(NOT_EQUAL, bigintLiteral(2L), C_BIGINT.toSymbolReference());
    result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_BIGINT, Domain.create(ValueSet.ofRanges(Range.lessThan(BIGINT, 2L), Range.greaterThan(BIGINT, 2L)), false))));
    originalExpression = comparison(NOT_EQUAL, colorLiteral(COLOR_VALUE_1), C_COLOR.toSymbolReference());
    result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_COLOR, Domain.create(ValueSet.of(COLOR, COLOR_VALUE_1).complement(), false))));
    originalExpression = comparison(IS_DISTINCT_FROM, bigintLiteral(2L), C_BIGINT.toSymbolReference());
    result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_BIGINT, Domain.create(ValueSet.ofRanges(Range.lessThan(BIGINT, 2L), Range.greaterThan(BIGINT, 2L)), true))));
    originalExpression = comparison(IS_DISTINCT_FROM, colorLiteral(COLOR_VALUE_1), C_COLOR.toSymbolReference());
    result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_COLOR, Domain.create(ValueSet.of(COLOR, COLOR_VALUE_1).complement(), true))));
    originalExpression = comparison(IS_DISTINCT_FROM, nullLiteral(BIGINT), C_BIGINT.toSymbolReference());
    result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_BIGINT, Domain.notNull(BIGINT))));
}

Example 14 with ComparisonExpression

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

the class TestDomainTranslator method testMultipleCoercionsOnSymbolSide.

@Test
void testMultipleCoercionsOnSymbolSide() throws Exception {
    ComparisonExpression originalExpression = comparison(GREATER_THAN, cast(cast(C_BIGINT, REAL), DOUBLE), doubleLiteral(3.7));
    ExtractionResult result = fromPredicate(originalExpression);
    assertEquals(result.getRemainingExpression(), TRUE_LITERAL);
    assertEquals(result.getTupleDomain(), withColumnDomains(ImmutableMap.of(C_BIGINT, Domain.create(ValueSet.ofRanges(Range.greaterThan(BIGINT, 3L)), false))));
}

Example 15 with ComparisonExpression

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

the class TreePrinter method print.

public void print(Node root) {
    AstVisitor<Void, Integer> printer = new DefaultTraversalVisitor<Void, Integer>() {

        @Override
        protected Void visitNode(Node node, Integer indentLevel) {
            throw new UnsupportedOperationException("not yet implemented: " + node);
        }

        @Override
        protected Void visitQuery(Query node, Integer indentLevel) {
            print(indentLevel, "Query ");
            indentLevel++;
            print(indentLevel, "QueryBody");
            process(node.getQueryBody(), indentLevel);
            if (node.getOrderBy().isPresent()) {
                print(indentLevel, "OrderBy");
                process(node.getOrderBy().get(), indentLevel + 1);
            }
            if (node.getLimit().isPresent()) {
                print(indentLevel, "Limit: " + node.getLimit().get());
            }
            return null;
        }

        @Override
        protected Void visitQuerySpecification(QuerySpecification node, Integer indentLevel) {
            print(indentLevel, "QuerySpecification ");
            indentLevel++;
            process(node.getSelect(), indentLevel);
            if (node.getFrom().isPresent()) {
                print(indentLevel, "From");
                process(node.getFrom().get(), indentLevel + 1);
            }
            if (node.getWhere().isPresent()) {
                print(indentLevel, "Where");
                process(node.getWhere().get(), indentLevel + 1);
            }
            if (node.getGroupBy().isPresent()) {
                String distinct = "";
                if (node.getGroupBy().get().isDistinct()) {
                    distinct = "[DISTINCT]";
                }
                print(indentLevel, "GroupBy" + distinct);
                for (GroupingElement groupingElement : node.getGroupBy().get().getGroupingElements()) {
                    print(indentLevel, "SimpleGroupBy");
                    if (groupingElement instanceof SimpleGroupBy) {
                        for (Expression column : ((SimpleGroupBy) groupingElement).getColumnExpressions()) {
                            process(column, indentLevel + 1);
                        }
                    } else if (groupingElement instanceof GroupingSets) {
                        print(indentLevel + 1, "GroupingSets");
                        for (Set<Expression> column : groupingElement.enumerateGroupingSets()) {
                            print(indentLevel + 2, "GroupingSet[");
                            for (Expression expression : column) {
                                process(expression, indentLevel + 3);
                            }
                            print(indentLevel + 2, "]");
                        }
                    } else if (groupingElement instanceof Cube) {
                        print(indentLevel + 1, "Cube");
                        for (QualifiedName column : ((Cube) groupingElement).getColumns()) {
                            print(indentLevel + 1, column.toString());
                        }
                    } else if (groupingElement instanceof Rollup) {
                        print(indentLevel + 1, "Rollup");
                        for (QualifiedName column : ((Rollup) groupingElement).getColumns()) {
                            print(indentLevel + 1, column.toString());
                        }
                    }
                }
            }
            if (node.getHaving().isPresent()) {
                print(indentLevel, "Having");
                process(node.getHaving().get(), indentLevel + 1);
            }
            if (node.getOrderBy().isPresent()) {
                print(indentLevel, "OrderBy");
                process(node.getOrderBy().get(), indentLevel + 1);
            }
            if (node.getLimit().isPresent()) {
                print(indentLevel, "Limit: " + node.getLimit().get());
            }
            return null;
        }

        protected Void visitOrderBy(OrderBy node, Integer indentLevel) {
            for (SortItem sortItem : node.getSortItems()) {
                process(sortItem, indentLevel);
            }
            return null;
        }

        @Override
        protected Void visitSelect(Select node, Integer indentLevel) {
            String distinct = "";
            if (node.isDistinct()) {
                distinct = "[DISTINCT]";
            }
            print(indentLevel, "Select" + distinct);
            // visit children
            super.visitSelect(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitAllColumns(AllColumns node, Integer indent) {
            if (node.getPrefix().isPresent()) {
                print(indent, node.getPrefix() + ".*");
            } else {
                print(indent, "*");
            }
            return null;
        }

        @Override
        protected Void visitSingleColumn(SingleColumn node, Integer indent) {
            if (node.getAlias().isPresent()) {
                print(indent, "Alias: " + node.getAlias().get());
            }
            // visit children
            super.visitSingleColumn(node, indent + 1);
            return null;
        }

        @Override
        protected Void visitComparisonExpression(ComparisonExpression node, Integer indentLevel) {
            print(indentLevel, node.getType().toString());
            super.visitComparisonExpression(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitArithmeticBinary(ArithmeticBinaryExpression node, Integer indentLevel) {
            print(indentLevel, node.getType().toString());
            super.visitArithmeticBinary(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitLogicalBinaryExpression(LogicalBinaryExpression node, Integer indentLevel) {
            print(indentLevel, node.getType().toString());
            super.visitLogicalBinaryExpression(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitStringLiteral(StringLiteral node, Integer indentLevel) {
            print(indentLevel, "String[" + node.getValue() + "]");
            return null;
        }

        @Override
        protected Void visitBinaryLiteral(BinaryLiteral node, Integer indentLevel) {
            print(indentLevel, "Binary[" + node.toHexString() + "]");
            return null;
        }

        @Override
        protected Void visitBooleanLiteral(BooleanLiteral node, Integer indentLevel) {
            print(indentLevel, "Boolean[" + node.getValue() + "]");
            return null;
        }

        @Override
        protected Void visitLongLiteral(LongLiteral node, Integer indentLevel) {
            print(indentLevel, "Long[" + node.getValue() + "]");
            return null;
        }

        @Override
        protected Void visitLikePredicate(LikePredicate node, Integer indentLevel) {
            print(indentLevel, "LIKE");
            super.visitLikePredicate(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitIdentifier(Identifier node, Integer indentLevel) {
            QualifiedName resolved = resolvedNameReferences.get(node);
            String resolvedName = "";
            if (resolved != null) {
                resolvedName = "=>" + resolved.toString();
            }
            print(indentLevel, "Identifier[" + node.getName() + resolvedName + "]");
            return null;
        }

        @Override
        protected Void visitDereferenceExpression(DereferenceExpression node, Integer indentLevel) {
            QualifiedName resolved = resolvedNameReferences.get(node);
            String resolvedName = "";
            if (resolved != null) {
                resolvedName = "=>" + resolved.toString();
            }
            print(indentLevel, "DereferenceExpression[" + node + resolvedName + "]");
            return null;
        }

        @Override
        protected Void visitFunctionCall(FunctionCall node, Integer indentLevel) {
            String name = Joiner.on('.').join(node.getName().getParts());
            print(indentLevel, "FunctionCall[" + name + "]");
            super.visitFunctionCall(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitTable(Table node, Integer indentLevel) {
            String name = Joiner.on('.').join(node.getName().getParts());
            print(indentLevel, "Table[" + name + "]");
            return null;
        }

        @Override
        protected Void visitValues(Values node, Integer indentLevel) {
            print(indentLevel, "Values");
            super.visitValues(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitRow(Row node, Integer indentLevel) {
            print(indentLevel, "Row");
            super.visitRow(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitAliasedRelation(AliasedRelation node, Integer indentLevel) {
            print(indentLevel, "Alias[" + node.getAlias() + "]");
            super.visitAliasedRelation(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitSampledRelation(SampledRelation node, Integer indentLevel) {
            print(indentLevel, "TABLESAMPLE[" + node.getType() + " (" + node.getSamplePercentage() + ")]");
            super.visitSampledRelation(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitTableSubquery(TableSubquery node, Integer indentLevel) {
            print(indentLevel, "SubQuery");
            super.visitTableSubquery(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitInPredicate(InPredicate node, Integer indentLevel) {
            print(indentLevel, "IN");
            super.visitInPredicate(node, indentLevel + 1);
            return null;
        }

        @Override
        protected Void visitSubqueryExpression(SubqueryExpression node, Integer indentLevel) {
            print(indentLevel, "SubQuery");
            super.visitSubqueryExpression(node, indentLevel + 1);
            return null;
        }
    };
    printer.process(root, 0);
}