Package com.facebook.presto.util

Examples of com.facebook.presto.util.MaterializedResult$Builder

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    @Test
    public void testNonDeterministicTableScanPredicatePushdown()
            throws Exception
    {
        MaterializedResult materializedResult = computeActual("" +
                "SELECT COUNT(*)\n" +
                "FROM (\n" +
                "  SELECT *\n" +
                "  FROM lineitem\n" +
                "  LIMIT 1000\n" +
                ")\n" +
                "WHERE rand() > 0.5");
        MaterializedTuple tuple = Iterables.getOnlyElement(materializedResult.getMaterializedTuples());
        Assert.assertEquals(tuple.getFieldCount(), 1);
        long count = (Long) tuple.getField(0);
        // Technically non-deterministic unit test but has essentially a next to impossible chance of a false positive
        Assert.assertTrue(count > 0 && count < 1000);
    }
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    @Test
    public void testNonDeterministicAggregationPredicatePushdown()
            throws Exception
    {
        MaterializedResult materializedResult = computeActual("" +
                "SELECT COUNT(*)\n" +
                "FROM (\n" +
                "  SELECT orderkey, COUNT(*)\n" +
                "  FROM lineitem\n" +
                "  GROUP BY orderkey\n" +
                "  LIMIT 1000\n" +
                ")\n" +
                "WHERE rand() > 0.5");
        MaterializedTuple tuple = Iterables.getOnlyElement(materializedResult.getMaterializedTuples());
        Assert.assertEquals(tuple.getFieldCount(), 1);
        long count = (Long) tuple.getField(0);
        // Technically non-deterministic unit test but has essentially a next to impossible chance of a false positive
        Assert.assertTrue(count > 0 && count < 1000);
    }
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    @Test
    public void testTableSampleBernoulliBoundaryValues()
            throws Exception
    {

        MaterializedResult fullSample = computeActual("SELECT orderkey FROM orders TABLESAMPLE BERNOULLI (100)");
        MaterializedResult emptySample = computeActual("SELECT orderkey FROM orders TABLESAMPLE BERNOULLI (0)");
        MaterializedResult all = computeExpected("SELECT orderkey FROM orders", fullSample.getTupleInfo());

        assertTrue(all.getMaterializedTuples().containsAll(fullSample.getMaterializedTuples()));
        assertEquals(emptySample.getMaterializedTuples().size(), 0);
    }
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    private void assertQuery(@Language("SQL") String actual, @Language("SQL") String expected, boolean ensureOrdering)
            throws Exception
    {
        long start = System.nanoTime();
        MaterializedResult actualResults = computeActual(actual);
        log.info("FINISHED in %s", Duration.nanosSince(start));

        MaterializedResult expectedResults = computeExpected(expected, actualResults.getTupleInfo());

        if (ensureOrdering) {
            assertEquals(actualResults.getMaterializedTuples(), expectedResults.getMaterializedTuples());
        }
        else {
            assertEqualsIgnoreOrder(actualResults.getMaterializedTuples(), expectedResults.getMaterializedTuples());
        }
    }
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        }
    }

    private MaterializedResult computeExpected(@Language("SQL") final String sql, TupleInfo resultTupleInfo)
    {
        return new MaterializedResult(
                handle.createQuery(sql)
                        .map(tupleMapper(resultTupleInfo))
                        .list(),
                resultTupleInfo
        );
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    private Handle handle;

    @Test void testSpecialFloatingPointValues()
            throws Exception
    {
        MaterializedResult actual = computeActual("SELECT nan(), infinity(), -infinity()");
        MaterializedTuple tuple = Iterables.getOnlyElement(actual.getMaterializedTuples());
        assertEquals(tuple.getField(0), Double.NaN);
        assertEquals(tuple.getField(1), Double.POSITIVE_INFINITY);
        assertEquals(tuple.getField(2), Double.NEGATIVE_INFINITY);
    }
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                client.advance();
            }

            if (!client.isFailed()) {
                return new MaterializedResult(rows.build(), types);
            }

            QueryError error = client.finalResults().getError();
            assert error != null;
            if (error.getFailureInfo() != null) {
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    @Test
    public void testShowSchemasFromOther()
            throws Exception
    {
        MaterializedResult result = computeActual(format("SHOW SCHEMAS FROM tpch"));
        ImmutableSet<String> schemaNames = ImmutableSet.copyOf(transform(result.getMaterializedRows(), onlyColumnGetter()));
        assertTrue(schemaNames.containsAll(ImmutableSet.of(INFORMATION_SCHEMA, "sys", "tiny")));
    }
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    @Test
    public void testTableSampleSystemBoundaryValues()
            throws Exception
    {
        MaterializedResult fullSample = computeActual("SELECT orderkey FROM orders TABLESAMPLE SYSTEM (100)");
        MaterializedResult emptySample = computeActual("SELECT orderkey FROM orders TABLESAMPLE SYSTEM (0)");
        MaterializedResult all = computeActual("SELECT orderkey FROM orders");

        assertTrue(all.getMaterializedRows().containsAll(fullSample.getMaterializedRows()));
        assertEquals(emptySample.getMaterializedRows().size(), 0);
    }
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                client.advance();
            }

            if (!client.isFailed()) {
                return new MaterializedResult(rows.build(), types);
            }

            QueryError error = client.finalResults().getError();
            assert error != null;
            if (error.getFailureInfo() != null) {
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