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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# distutils: language = c++
from libcpp.unordered_map cimport unordered_map
from libcpp cimport bool as c_bool
from pyarrow.includes.common cimport *
from pyarrow.includes.libarrow cimport *
from pyarrow.includes.libarrow_acero cimport *
from pyarrow.includes.libarrow_fs cimport *
cdef extern from "arrow/dataset/plan.h" namespace "arrow::dataset::internal" nogil:
cdef void Initialize()
ctypedef CStatus cb_writer_finish_internal(CFileWriter*)
ctypedef void cb_writer_finish(dict, CFileWriter*)
cdef extern from "arrow/dataset/api.h" namespace "arrow::dataset" nogil:
cdef enum ExistingDataBehavior" arrow::dataset::ExistingDataBehavior":
ExistingDataBehavior_DELETE_MATCHING" \
arrow::dataset::ExistingDataBehavior::kDeleteMatchingPartitions"
ExistingDataBehavior_OVERWRITE_OR_IGNORE" \
arrow::dataset::ExistingDataBehavior::kOverwriteOrIgnore"
ExistingDataBehavior_ERROR" \
arrow::dataset::ExistingDataBehavior::kError"
cdef cppclass CScanOptions "arrow::dataset::ScanOptions":
shared_ptr[CSchema] dataset_schema
shared_ptr[CSchema] projected_schema
c_bool use_threads
c_bool cache_metadata
CExpression filter
cdef cppclass CScanNodeOptions "arrow::dataset::ScanNodeOptions"(CExecNodeOptions):
CScanNodeOptions(shared_ptr[CDataset] dataset, shared_ptr[CScanOptions] scan_options, bint require_sequenced_output, bint implicit_ordering)
shared_ptr[CScanOptions] scan_options
cdef cppclass CFragmentScanOptions "arrow::dataset::FragmentScanOptions":
c_string type_name() const
ctypedef CIterator[shared_ptr[CScanTask]] CScanTaskIterator \
"arrow::dataset::ScanTaskIterator"
cdef cppclass CScanTask" arrow::dataset::ScanTask":
CResult[CRecordBatchIterator] Execute()
cdef cppclass CFragment "arrow::dataset::Fragment":
CResult[shared_ptr[CSchema]] ReadPhysicalSchema()
CResult[CScanTaskIterator] Scan(shared_ptr[CScanOptions] options)
c_bool splittable() const
c_string type_name() const
const CExpression& partition_expression() const
ctypedef vector[shared_ptr[CFragment]] CFragmentVector \
"arrow::dataset::FragmentVector"
ctypedef CIterator[shared_ptr[CFragment]] CFragmentIterator \
"arrow::dataset::FragmentIterator"
cdef cppclass CInMemoryFragment "arrow::dataset::InMemoryFragment"(
CFragment):
CInMemoryFragment(vector[shared_ptr[CRecordBatch]] record_batches,
CExpression partition_expression)
cdef cppclass CTaggedRecordBatch "arrow::dataset::TaggedRecordBatch":
shared_ptr[CRecordBatch] record_batch
shared_ptr[CFragment] fragment
ctypedef CIterator[CTaggedRecordBatch] CTaggedRecordBatchIterator \
"arrow::dataset::TaggedRecordBatchIterator"
cdef cppclass CScanner "arrow::dataset::Scanner":
CScanner(shared_ptr[CDataset], shared_ptr[CScanOptions])
CScanner(shared_ptr[CFragment], shared_ptr[CScanOptions])
CResult[CScanTaskIterator] Scan()
CResult[CTaggedRecordBatchIterator] ScanBatches()
CResult[shared_ptr[CTable]] ToTable()
CResult[shared_ptr[CTable]] TakeRows(const CArray& indices)
CResult[shared_ptr[CTable]] Head(int64_t num_rows)
CResult[int64_t] CountRows()
CResult[CFragmentIterator] GetFragments()
CResult[shared_ptr[CRecordBatchReader]] ToRecordBatchReader()
const shared_ptr[CScanOptions]& options()
cdef cppclass CScannerBuilder "arrow::dataset::ScannerBuilder":
CScannerBuilder(shared_ptr[CDataset],
shared_ptr[CScanOptions] scan_options)
CScannerBuilder(shared_ptr[CSchema], shared_ptr[CFragment],
shared_ptr[CScanOptions] scan_options)
@staticmethod
shared_ptr[CScannerBuilder] FromRecordBatchReader(
shared_ptr[CRecordBatchReader] reader)
CStatus ProjectColumns "Project"(const vector[c_string]& columns)
CStatus Project(vector[CExpression]& exprs, vector[c_string]& columns)
CStatus Filter(CExpression filter)
CStatus UseThreads(c_bool use_threads)
CStatus CacheMetadata(c_bool cache_metadata)
CStatus Pool(CMemoryPool* pool)
CStatus BatchSize(int64_t batch_size)
CStatus BatchReadahead(int32_t batch_readahead)
CStatus FragmentReadahead(int32_t fragment_readahead)
CStatus FragmentScanOptions(
shared_ptr[CFragmentScanOptions] fragment_scan_options)
CResult[shared_ptr[CScanOptions]] GetScanOptions()
CResult[shared_ptr[CScanner]] Finish()
shared_ptr[CSchema] schema() const
ctypedef vector[shared_ptr[CDataset]] CDatasetVector \
"arrow::dataset::DatasetVector"
cdef cppclass CDataset "arrow::dataset::Dataset":
const shared_ptr[CSchema] & schema()
CResult[CFragmentIterator] GetFragments()
CResult[CFragmentIterator] GetFragments(CExpression predicate)
const CExpression & partition_expression()
c_string type_name()
CResult[shared_ptr[CDataset]] ReplaceSchema(shared_ptr[CSchema])
CResult[shared_ptr[CScannerBuilder]] NewScan()
cdef cppclass CInMemoryDataset "arrow::dataset::InMemoryDataset"(
CDataset):
CInMemoryDataset(shared_ptr[CRecordBatchReader])
CInMemoryDataset(shared_ptr[CTable])
cdef cppclass CUnionDataset "arrow::dataset::UnionDataset"(
CDataset):
@staticmethod
CResult[shared_ptr[CUnionDataset]] Make(shared_ptr[CSchema] schema,
CDatasetVector children)
const CDatasetVector& children() const
cdef cppclass CInspectOptions "arrow::dataset::InspectOptions":
int fragments
cdef cppclass CFinishOptions "arrow::dataset::FinishOptions":
shared_ptr[CSchema] schema
CInspectOptions inspect_options
c_bool validate_fragments
cdef cppclass CDatasetFactory "arrow::dataset::DatasetFactory":
CResult[vector[shared_ptr[CSchema]]] InspectSchemas(CInspectOptions)
CResult[shared_ptr[CSchema]] Inspect(CInspectOptions)
CResult[shared_ptr[CDataset]] FinishWithSchema "Finish"(
const shared_ptr[CSchema]& schema)
CResult[shared_ptr[CDataset]] Finish()
const CExpression& root_partition()
CStatus SetRootPartition(CExpression partition)
cdef cppclass CUnionDatasetFactory "arrow::dataset::UnionDatasetFactory":
@staticmethod
CResult[shared_ptr[CDatasetFactory]] Make(
vector[shared_ptr[CDatasetFactory]] factories)
cdef cppclass CFileSource "arrow::dataset::FileSource":
const c_string& path() const
const shared_ptr[CFileSystem]& filesystem() const
const shared_ptr[CBuffer]& buffer() const
const int64_t size() const
# HACK: Cython can't handle all the overloads so don't declare them.
# This means invalid construction of CFileSource won't be caught in
# the C++ generation phase (though it will still be caught when
# the generated C++ is compiled).
CFileSource(...)
cdef cppclass CFileWriteOptions \
"arrow::dataset::FileWriteOptions":
const shared_ptr[CFileFormat]& format() const
c_string type_name() const
cdef cppclass CFileWriter \
"arrow::dataset::FileWriter":
const shared_ptr[CFileFormat]& format() const
const shared_ptr[CSchema]& schema() const
const shared_ptr[CFileWriteOptions]& options() const
const CFileLocator& destination() const
CResult[int64_t] GetBytesWritten()
cdef cppclass CFileFormat "arrow::dataset::FileFormat":
shared_ptr[CFragmentScanOptions] default_fragment_scan_options
c_string type_name() const
CResult[shared_ptr[CSchema]] Inspect(const CFileSource&) const
CResult[shared_ptr[CFileFragment]] MakeFragment(
CFileSource source,
CExpression partition_expression,
shared_ptr[CSchema] physical_schema)
shared_ptr[CFileWriteOptions] DefaultWriteOptions()
cdef cppclass CFileFragment "arrow::dataset::FileFragment"(
CFragment):
const CFileSource& source() const
const shared_ptr[CFileFormat]& format() const
cdef cppclass CFileSystemDatasetWriteOptions \
"arrow::dataset::FileSystemDatasetWriteOptions":
shared_ptr[CFileWriteOptions] file_write_options
shared_ptr[CFileSystem] filesystem
c_string base_dir
shared_ptr[CPartitioning] partitioning
int max_partitions
c_string basename_template
function[cb_writer_finish_internal] writer_pre_finish
function[cb_writer_finish_internal] writer_post_finish
ExistingDataBehavior existing_data_behavior
c_bool create_dir
uint32_t max_open_files
uint64_t max_rows_per_file
uint64_t min_rows_per_group
uint64_t max_rows_per_group
cdef cppclass CFileSystemDataset \
"arrow::dataset::FileSystemDataset"(CDataset):
@staticmethod
CResult[shared_ptr[CDataset]] Make(
shared_ptr[CSchema] schema,
CExpression source_partition,
shared_ptr[CFileFormat] format,
shared_ptr[CFileSystem] filesystem,
vector[shared_ptr[CFileFragment]] fragments)
@staticmethod
CStatus Write(
const CFileSystemDatasetWriteOptions& write_options,
shared_ptr[CScanner] scanner)
c_string type()
vector[c_string] files()
const shared_ptr[CFileFormat]& format() const
const shared_ptr[CFileSystem]& filesystem() const
const shared_ptr[CPartitioning]& partitioning() const
cdef cppclass CIpcFileWriteOptions \
"arrow::dataset::IpcFileWriteOptions"(CFileWriteOptions):
shared_ptr[CIpcWriteOptions] options
cdef cppclass CIpcFileFormat "arrow::dataset::IpcFileFormat"(
CFileFormat):
pass
cdef cppclass COrcFileFormat "arrow::dataset::OrcFileFormat"(
CFileFormat):
pass
cdef cppclass CCsvFileWriteOptions \
"arrow::dataset::CsvFileWriteOptions"(CFileWriteOptions):
shared_ptr[CCSVWriteOptions] write_options
CMemoryPool* pool
cdef cppclass CCsvFileFormat "arrow::dataset::CsvFileFormat"(
CFileFormat):
CCSVParseOptions parse_options
cdef cppclass CCsvFragmentScanOptions \
"arrow::dataset::CsvFragmentScanOptions"(CFragmentScanOptions):
CCSVConvertOptions convert_options
CCSVReadOptions read_options
function[StreamWrapFunc] stream_transform_func
cdef cppclass CJsonFileFormat "arrow::dataset::JsonFileFormat"(CFileFormat):
pass
cdef cppclass CJsonFragmentScanOptions "arrow::dataset::JsonFragmentScanOptions"(CFragmentScanOptions):
CJSONParseOptions parse_options
CJSONReadOptions read_options
cdef struct CPartitionPathFormat "arrow::dataset::PartitionPathFormat":
c_string directory
c_string filename
cdef cppclass CPartitioning "arrow::dataset::Partitioning":
c_string type_name() const
CResult[CExpression] Parse(const c_string & path) const
CResult[CPartitionPathFormat] Format(const CExpression & expr) const
const shared_ptr[CSchema] & schema()
c_bool Equals(const CPartitioning& other) const
cdef cppclass CSegmentEncoding" arrow::dataset::SegmentEncoding":
bint operator==(CSegmentEncoding)
CSegmentEncoding CSegmentEncoding_None\
" arrow::dataset::SegmentEncoding::None"
CSegmentEncoding CSegmentEncoding_Uri\
" arrow::dataset::SegmentEncoding::Uri"
cdef cppclass CKeyValuePartitioningOptions \
"arrow::dataset::KeyValuePartitioningOptions":
CSegmentEncoding segment_encoding
cdef cppclass CHivePartitioningOptions \
"arrow::dataset::HivePartitioningOptions":
CSegmentEncoding segment_encoding
c_string null_fallback
cdef cppclass CPartitioningFactoryOptions \
"arrow::dataset::PartitioningFactoryOptions":
c_bool infer_dictionary
shared_ptr[CSchema] schema
CSegmentEncoding segment_encoding
cdef cppclass CHivePartitioningFactoryOptions \
"arrow::dataset::HivePartitioningFactoryOptions":
c_bool infer_dictionary
c_string null_fallback
shared_ptr[CSchema] schema
CSegmentEncoding segment_encoding
cdef cppclass CPartitioningFactory "arrow::dataset::PartitioningFactory":
c_string type_name() const
cdef cppclass CKeyValuePartitioning \
"arrow::dataset::KeyValuePartitioning"(CPartitioning):
CKeyValuePartitioning(shared_ptr[CSchema] schema,
vector[shared_ptr[CArray]] dictionaries,
CKeyValuePartitioningOptions options)
vector[shared_ptr[CArray]] dictionaries() const
CSegmentEncoding segment_encoding()
cdef cppclass CDirectoryPartitioning \
"arrow::dataset::DirectoryPartitioning"(CPartitioning):
CDirectoryPartitioning(shared_ptr[CSchema] schema,
vector[shared_ptr[CArray]] dictionaries)
@staticmethod
shared_ptr[CPartitioningFactory] MakeFactory(
vector[c_string] field_names, CPartitioningFactoryOptions)
vector[shared_ptr[CArray]] dictionaries() const
cdef cppclass CHivePartitioning \
"arrow::dataset::HivePartitioning"(CPartitioning):
CHivePartitioning(shared_ptr[CSchema] schema,
vector[shared_ptr[CArray]] dictionaries,
CHivePartitioningOptions options)
@staticmethod
shared_ptr[CPartitioningFactory] MakeFactory(
CHivePartitioningFactoryOptions)
vector[shared_ptr[CArray]] dictionaries() const
c_string null_fallback() const
cdef cppclass CFilenamePartitioning \
"arrow::dataset::FilenamePartitioning"(CPartitioning):
CFilenamePartitioning(shared_ptr[CSchema] schema,
vector[shared_ptr[CArray]] dictionaries)
@staticmethod
shared_ptr[CPartitioningFactory] MakeFactory(
vector[c_string] field_names, CPartitioningFactoryOptions)
vector[shared_ptr[CArray]] dictionaries() const
cdef cppclass CPartitioningOrFactory \
"arrow::dataset::PartitioningOrFactory":
CPartitioningOrFactory(shared_ptr[CPartitioning])
CPartitioningOrFactory(shared_ptr[CPartitioningFactory])
CPartitioningOrFactory & operator = (shared_ptr[CPartitioning])
CPartitioningOrFactory & operator = (
shared_ptr[CPartitioningFactory])
shared_ptr[CPartitioning] partitioning() const
shared_ptr[CPartitioningFactory] factory() const
cdef cppclass CFileSystemFactoryOptions \
"arrow::dataset::FileSystemFactoryOptions":
CPartitioningOrFactory partitioning
c_string partition_base_dir
c_bool exclude_invalid_files
vector[c_string] selector_ignore_prefixes
cdef cppclass CFileSystemDatasetFactory \
"arrow::dataset::FileSystemDatasetFactory"(
CDatasetFactory):
@staticmethod
CResult[shared_ptr[CDatasetFactory]] MakeFromPaths "Make"(
shared_ptr[CFileSystem] filesystem,
vector[c_string] paths,
shared_ptr[CFileFormat] format,
CFileSystemFactoryOptions options
)
@staticmethod
CResult[shared_ptr[CDatasetFactory]] MakeFromSelector "Make"(
shared_ptr[CFileSystem] filesystem,
CFileSelector,
shared_ptr[CFileFormat] format,
CFileSystemFactoryOptions options
)
@staticmethod
CResult[shared_ptr[CDatasetFactory]] MakeFromFileInfos "Make"(
shared_ptr[CFileSystem] filesystem,
vector[CFileInfo] files,
shared_ptr[CFileFormat] format,
CFileSystemFactoryOptions options
)
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