Examples with Field io.trino.spi.type.RowType.Field used on opensource projects

Example 1 with Field

use of io.trino.spi.type.RowType.Field in project trino by trinodb.

the class HiveUpdateProcessor method getUpdateRowIdColumnHandle.

/**
 * Return the column UPDATE column handle, which depends on the 3 ACID columns as well as the non-updated columns.
 */
public static HiveColumnHandle getUpdateRowIdColumnHandle(List<HiveColumnHandle> nonUpdatedColumnHandles) {
    List<Field> allAcidFields = new ArrayList<>(ACID_READ_FIELDS);
    if (!nonUpdatedColumnHandles.isEmpty()) {
        RowType userColumnRowType = from(nonUpdatedColumnHandles.stream().map(column -> field(column.getName(), column.getType())).collect(toImmutableList()));
        allAcidFields.add(field(ACID_COLUMN_ROW_STRUCT, userColumnRowType));
    }
    RowType acidRowType = from(allAcidFields);
    return createBaseColumn(UPDATE_ROW_ID_COLUMN_NAME, UPDATE_ROW_ID_COLUMN_INDEX, toHiveType(acidRowType), acidRowType, SYNTHESIZED, Optional.empty());
}

Example 2 with Field

use of io.trino.spi.type.RowType.Field in project trino by trinodb.

the class AcidSchema method createRowType.

public static Type createRowType(List<String> names, List<Type> types) {
    requireNonNull(names, "names is null");
    requireNonNull(types, "types is null");
    checkArgument(names.size() == types.size(), "names size %s differs from types size %s", names.size(), types.size());
    ImmutableList.Builder<Field> builder = ImmutableList.builder();
    for (int i = 0; i < names.size(); i++) {
        builder.add(new Field(Optional.of(names.get(i)), types.get(i)));
    }
    return RowType.from(builder.build());
}

Example 3 with Field

use of io.trino.spi.type.RowType.Field in project trino by trinodb.

the class TestPushDownDereferencesRules method testPushdownDereferencesThroughUnnest.

@Test
public void testPushdownDereferencesThroughUnnest() {
    ArrayType arrayType = new ArrayType(BIGINT);
    tester().assertThat(new PushDownDereferenceThroughUnnest(tester().getTypeAnalyzer())).on(p -> p.project(Assignments.of(p.symbol("x"), expression("msg[1]")), p.unnest(ImmutableList.of(p.symbol("msg", ROW_TYPE)), ImmutableList.of(new UnnestNode.Mapping(p.symbol("arr", arrayType), ImmutableList.of(p.symbol("field")))), Optional.empty(), INNER, Optional.empty(), p.values(p.symbol("msg", ROW_TYPE), p.symbol("arr", arrayType))))).matches(strictProject(ImmutableMap.of("x", PlanMatchPattern.expression("msg_x")), unnest(strictProject(ImmutableMap.of("msg_x", PlanMatchPattern.expression("msg[1]"), "msg", PlanMatchPattern.expression("msg"), "arr", PlanMatchPattern.expression("arr")), values("msg", "arr")))));
    // Test with dereferences on unnested column
    RowType rowType = rowType(field("f1", BIGINT), field("f2", BIGINT));
    ArrayType nestedColumnType = new ArrayType(rowType(field("f1", BIGINT), field("f2", rowType)));
    tester().assertThat(new PushDownDereferenceThroughUnnest(tester().getTypeAnalyzer())).on(p -> p.project(Assignments.of(p.symbol("deref_replicate", BIGINT), expression("replicate[2]"), p.symbol("deref_unnest", BIGINT), expression("unnested_row[2]")), p.unnest(ImmutableList.of(p.symbol("replicate", rowType)), ImmutableList.of(new UnnestNode.Mapping(p.symbol("nested", nestedColumnType), ImmutableList.of(p.symbol("unnested_bigint", BIGINT), p.symbol("unnested_row", rowType)))), p.values(p.symbol("replicate", rowType), p.symbol("nested", nestedColumnType))))).matches(strictProject(ImmutableMap.of("deref_replicate", PlanMatchPattern.expression("symbol"), "deref_unnest", // not pushed down
    PlanMatchPattern.expression("unnested_row[2]")), unnest(ImmutableList.of("replicate", "symbol"), ImmutableList.of(unnestMapping("nested", ImmutableList.of("unnested_bigint", "unnested_row"))), strictProject(ImmutableMap.of("symbol", PlanMatchPattern.expression("replicate[2]"), "replicate", PlanMatchPattern.expression("replicate"), "nested", PlanMatchPattern.expression("nested")), values("replicate", "nested")))));
}

Example 4 with Field

use of io.trino.spi.type.RowType.Field in project trino by trinodb.

the class TypeCoercion method isTypeOnlyCoercion.

public boolean isTypeOnlyCoercion(Type source, Type result) {
    if (source.equals(result)) {
        return true;
    }
    if (!canCoerce(source, result)) {
        return false;
    }
    if (source instanceof VarcharType && result instanceof VarcharType) {
        return true;
    }
    if (source instanceof DecimalType && result instanceof DecimalType) {
        DecimalType sourceDecimal = (DecimalType) source;
        DecimalType resultDecimal = (DecimalType) result;
        boolean sameDecimalSubtype = (sourceDecimal.isShort() && resultDecimal.isShort()) || (!sourceDecimal.isShort() && !resultDecimal.isShort());
        boolean sameScale = sourceDecimal.getScale() == resultDecimal.getScale();
        boolean sourcePrecisionIsLessOrEqualToResultPrecision = sourceDecimal.getPrecision() <= resultDecimal.getPrecision();
        return sameDecimalSubtype && sameScale && sourcePrecisionIsLessOrEqualToResultPrecision;
    }
    if (source instanceof RowType && result instanceof RowType) {
        RowType sourceType = (RowType) source;
        RowType resultType = (RowType) result;
        List<Field> sourceFields = sourceType.getFields();
        List<Field> resultFields = resultType.getFields();
        if (sourceFields.size() != resultFields.size()) {
            return false;
        }
        for (int i = 0; i < sourceFields.size(); i++) {
            if (!isTypeOnlyCoercion(sourceFields.get(i).getType(), resultFields.get(i).getType())) {
                return false;
            }
        }
        return true;
    }
    String sourceTypeBase = source.getBaseName();
    String resultTypeBase = result.getBaseName();
    if (sourceTypeBase.equals(resultTypeBase) && isCovariantParametrizedType(source)) {
        List<Type> sourceTypeParameters = source.getTypeParameters();
        List<Type> resultTypeParameters = result.getTypeParameters();
        checkState(sourceTypeParameters.size() == resultTypeParameters.size());
        for (int i = 0; i < sourceTypeParameters.size(); i++) {
            if (!isTypeOnlyCoercion(sourceTypeParameters.get(i), resultTypeParameters.get(i))) {
                return false;
            }
        }
        return true;
    }
    return false;
}

Example 5 with Field

use of io.trino.spi.type.RowType.Field in project trino by trinodb.

the class TypeCoercion method typeCompatibilityForRow.

private TypeCompatibility typeCompatibilityForRow(RowType firstType, RowType secondType) {
    List<Field> firstFields = firstType.getFields();
    List<Field> secondFields = secondType.getFields();
    if (firstFields.size() != secondFields.size()) {
        return TypeCompatibility.incompatible();
    }
    ImmutableList.Builder<Field> fields = ImmutableList.builder();
    boolean coercible = true;
    for (int i = 0; i < firstFields.size(); i++) {
        Type firstFieldType = firstFields.get(i).getType();
        Type secondFieldType = secondFields.get(i).getType();
        TypeCompatibility typeCompatibility = compatibility(firstFieldType, secondFieldType);
        if (!typeCompatibility.isCompatible()) {
            return TypeCompatibility.incompatible();
        }
        Type commonParameterType = typeCompatibility.getCommonSuperType();
        Optional<String> firstParameterName = firstFields.get(i).getName();
        Optional<String> secondParameterName = secondFields.get(i).getName();
        Optional<String> commonName = firstParameterName.equals(secondParameterName) ? firstParameterName : Optional.empty();
        // ignore parameter name for coercible
        coercible &= typeCompatibility.isCoercible();
        fields.add(new Field(commonName, commonParameterType));
    }
    return TypeCompatibility.compatible(RowType.from(fields.build()), coercible);
}