Examples with TypeParameter io.trino.spi.function.TypeParameter used on opensource projects

Example 11 with TypeParameter

use of io.trino.spi.function.TypeParameter in project trino by trinodb.

the class ApproximateCountDistinctAggregation method input.

@InputFunction
@TypeParameter("T")
public static void input(@OperatorDependency(operator = XX_HASH_64, argumentTypes = "T", convention = @Convention(arguments = NEVER_NULL, result = FAIL_ON_NULL)) MethodHandle methodHandle, @AggregationState HyperLogLogState state, @SqlType("T") double value, @SqlType(StandardTypes.DOUBLE) double maxStandardError) {
    HyperLogLog hll = getOrCreateHyperLogLog(state, maxStandardError);
    state.addMemoryUsage(-hll.estimatedInMemorySize());
    long hash;
    try {
        hash = (long) methodHandle.invokeExact(value);
    } catch (Throwable t) {
        throw internalError(t);
    }
    hll.addHash(hash);
    state.addMemoryUsage(hll.estimatedInMemorySize());
}

Example 12 with TypeParameter

use of io.trino.spi.function.TypeParameter in project trino by trinodb.

the class MapEntriesFunction method mapFromEntries.

@TypeParameter("K")
@TypeParameter("V")
@SqlType("array(row(K,V))")
public Block mapFromEntries(@TypeParameter("row(K,V)") RowType rowType, @SqlType("map(K,V)") Block block) {
    verify(rowType.getTypeParameters().size() == 2);
    verify(block.getPositionCount() % 2 == 0);
    Type keyType = rowType.getTypeParameters().get(0);
    Type valueType = rowType.getTypeParameters().get(1);
    ArrayType arrayType = new ArrayType(rowType);
    if (pageBuilder.isFull()) {
        pageBuilder.reset();
    }
    int entryCount = block.getPositionCount() / 2;
    BlockBuilder blockBuilder = pageBuilder.getBlockBuilder(0);
    BlockBuilder entryBuilder = blockBuilder.beginBlockEntry();
    for (int i = 0; i < entryCount; i++) {
        BlockBuilder rowBuilder = entryBuilder.beginBlockEntry();
        keyType.appendTo(block, 2 * i, rowBuilder);
        valueType.appendTo(block, 2 * i + 1, rowBuilder);
        entryBuilder.closeEntry();
    }
    blockBuilder.closeEntry();
    pageBuilder.declarePosition();
    return arrayType.getObject(blockBuilder, blockBuilder.getPositionCount() - 1);
}

Example 13 with TypeParameter

use of io.trino.spi.function.TypeParameter in project trino by trinodb.

the class MapFromEntriesFunction method mapFromEntries.

@TypeParameter("K")
@TypeParameter("V")
@SqlType("map(K,V)")
@SqlNullable
public Block mapFromEntries(@OperatorDependency(operator = EQUAL, argumentTypes = { "K", "K" }, convention = @Convention(arguments = { BLOCK_POSITION, BLOCK_POSITION }, result = NULLABLE_RETURN)) BlockPositionEqual keyEqual, @OperatorDependency(operator = HASH_CODE, argumentTypes = "K", convention = @Convention(arguments = BLOCK_POSITION, result = FAIL_ON_NULL)) BlockPositionHashCode keyHashCode, @TypeParameter("map(K,V)") MapType mapType, ConnectorSession session, @SqlType("array(row(K,V))") Block mapEntries) {
    Type keyType = mapType.getKeyType();
    Type valueType = mapType.getValueType();
    RowType mapEntryType = RowType.anonymous(ImmutableList.of(keyType, valueType));
    if (pageBuilder.isFull()) {
        pageBuilder.reset();
    }
    int entryCount = mapEntries.getPositionCount();
    BlockBuilder mapBlockBuilder = pageBuilder.getBlockBuilder(0);
    BlockBuilder resultBuilder = mapBlockBuilder.beginBlockEntry();
    TypedSet uniqueKeys = createEqualityTypedSet(keyType, keyEqual, keyHashCode, entryCount, "map_from_entries");
    for (int i = 0; i < entryCount; i++) {
        if (mapEntries.isNull(i)) {
            mapBlockBuilder.closeEntry();
            pageBuilder.declarePosition();
            throw new TrinoException(INVALID_FUNCTION_ARGUMENT, "map entry cannot be null");
        }
        Block mapEntryBlock = mapEntryType.getObject(mapEntries, i);
        if (mapEntryBlock.isNull(0)) {
            mapBlockBuilder.closeEntry();
            pageBuilder.declarePosition();
            throw new TrinoException(INVALID_FUNCTION_ARGUMENT, "map key cannot be null");
        }
        if (!uniqueKeys.add(mapEntryBlock, 0)) {
            mapBlockBuilder.closeEntry();
            pageBuilder.declarePosition();
            throw new TrinoException(INVALID_FUNCTION_ARGUMENT, format("Duplicate keys (%s) are not allowed", keyType.getObjectValue(session, mapEntryBlock, 0)));
        }
        keyType.appendTo(mapEntryBlock, 0, resultBuilder);
        valueType.appendTo(mapEntryBlock, 1, resultBuilder);
    }
    mapBlockBuilder.closeEntry();
    pageBuilder.declarePosition();
    return mapType.getObject(mapBlockBuilder, mapBlockBuilder.getPositionCount() - 1);
}

Example 14 with TypeParameter

use of io.trino.spi.function.TypeParameter in project trino by trinodb.

the class MultimapFromEntriesFunction method multimapFromEntries.

@TypeParameter("K")
@TypeParameter("V")
@SqlType("map(K,array(V))")
@SqlNullable
public Block multimapFromEntries(@TypeParameter("map(K,array(V))") MapType mapType, @OperatorDependency(operator = EQUAL, argumentTypes = { "K", "K" }, convention = @Convention(arguments = { BLOCK_POSITION, BLOCK_POSITION }, result = NULLABLE_RETURN)) BlockPositionEqual keyEqual, @OperatorDependency(operator = HASH_CODE, argumentTypes = "K", convention = @Convention(arguments = BLOCK_POSITION, result = FAIL_ON_NULL)) BlockPositionHashCode keyHashCode, @SqlType("array(row(K,V))") Block mapEntries) {
    Type keyType = mapType.getKeyType();
    Type valueType = ((ArrayType) mapType.getValueType()).getElementType();
    RowType mapEntryType = RowType.anonymous(ImmutableList.of(keyType, valueType));
    if (pageBuilder.isFull()) {
        pageBuilder.reset();
    }
    int entryCount = mapEntries.getPositionCount();
    if (entryCount > entryIndicesList.length) {
        initializeEntryIndicesList(entryCount);
    }
    TypedSet keySet = createEqualityTypedSet(keyType, keyEqual, keyHashCode, entryCount, NAME);
    for (int i = 0; i < entryCount; i++) {
        if (mapEntries.isNull(i)) {
            clearEntryIndices(keySet.size());
            throw new TrinoException(INVALID_FUNCTION_ARGUMENT, "map entry cannot be null");
        }
        Block mapEntryBlock = mapEntryType.getObject(mapEntries, i);
        if (mapEntryBlock.isNull(0)) {
            clearEntryIndices(keySet.size());
            throw new TrinoException(INVALID_FUNCTION_ARGUMENT, "map key cannot be null");
        }
        if (keySet.add(mapEntryBlock, 0)) {
            entryIndicesList[keySet.size() - 1].add(i);
        } else {
            entryIndicesList[keySet.positionOf(mapEntryBlock, 0)].add(i);
        }
    }
    BlockBuilder multimapBlockBuilder = pageBuilder.getBlockBuilder(0);
    BlockBuilder mapWriter = multimapBlockBuilder.beginBlockEntry();
    for (int i = 0; i < keySet.size(); i++) {
        keyType.appendTo(mapEntryType.getObject(mapEntries, entryIndicesList[i].getInt(0)), 0, mapWriter);
        BlockBuilder valuesArray = mapWriter.beginBlockEntry();
        for (int entryIndex : entryIndicesList[i]) {
            valueType.appendTo(mapEntryType.getObject(mapEntries, entryIndex), 1, valuesArray);
        }
        mapWriter.closeEntry();
    }
    multimapBlockBuilder.closeEntry();
    pageBuilder.declarePosition();
    clearEntryIndices(keySet.size());
    return mapType.getObject(multimapBlockBuilder, multimapBlockBuilder.getPositionCount() - 1);
}

Example 15 with TypeParameter

use of io.trino.spi.function.TypeParameter in project trino by trinodb.

the class ArrayToArrayCast method filterLong.

@TypeParameter("F")
@TypeParameter("T")
@TypeParameterSpecialization(name = "T", nativeContainerType = long.class)
@SqlType("array(T)")
public static Block filterLong(@TypeParameter("T") Type resultType, @CastDependency(fromType = "F", toType = "T", convention = @Convention(arguments = BLOCK_POSITION, result = NULLABLE_RETURN, session = true)) MethodHandle cast, ConnectorSession session, @SqlType("array(F)") Block array) throws Throwable {
    int positionCount = array.getPositionCount();
    BlockBuilder resultBuilder = resultType.createBlockBuilder(null, positionCount);
    for (int position = 0; position < positionCount; position++) {
        if (!array.isNull(position)) {
            Long value = (Long) cast.invokeExact(session, array, position);
            if (value != null) {
                resultType.writeLong(resultBuilder, value);
                continue;
            }
        }
        resultBuilder.appendNull();
    }
    return resultBuilder.build();
}