Fix frombytes assumption #2
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OwnedRef API cleaned up: - doesn't try to take the GIL in its destructor anymore - reset() decrefs the underlying pointer - detach() unowns the pointer without decrefing it Add OwnedRefNoGIL which forcefully takes the GIL in its destructor, at the expense of runtime performance. Author: Antoine Pitrou <antoine@python.org> Closes apache#1534 from pitrou/ARROW-2052-unify-ownedref-scopedref and squashes the following commits: 772c5c1 [Antoine Pitrou] ARROW-2052: [C++ / Python] Rework OwnedRef, remove ScopedRef
* By using `pytest-runner`, the test dependencies can automatically be fetched before running test suite. Author: moriyoshi <mozo@mozo.jp> Closes apache#1527 from moriyoshi/moriyoshi/pytest-runner and squashes the following commits: 7b73105 [moriyoshi] Support setup.py pytest
…that preserves index name if available Related to the discussion about the pandas metadata specification in pandas-dev/pandas#18201, and an alternative to apache#1271. I don't open this PR because it should necessarily be merged, I just want to show that it is not that difficult to both fix [ARROW-1754](https://issues.apache.org/jira/browse/ARROW-1754) and preserve index names as field names when possible (as this was mentioned in pandas-dev/pandas#18201 as the reason to make this change to not preserve index names). The diff is partly a revert of apache#1271, but then adapted to the current codebase. Main reasons I prefer to preserve index names: 1) usability in pyarrow itself (if you would want to work with pyarrow Tables created from pandas) and 2) when interchanging parquet files with other people / other non-pandas systems, then it would be much nicer to not have `__index_level_n__` column names if possible. Author: Joris Van den Bossche <jorisvandenbossche@gmail.com> Closes apache#1408 from jorisvandenbossche/index-names and squashes the following commits: eef1d33 [Joris Van den Bossche] alternative fix for duplicate index/column name that preserves index name if available
…Flip order of arguments I flipped the argument order to be more consistent with the same methods in RecordBatch, Table. The StructArray method doesn't seem to be widely used so I'm not sure there's the need to go through a deprecation cycle Author: Wes McKinney <wes.mckinney@twosigma.com> Closes apache#1512 from wesm/ARROW-1706 and squashes the following commits: 786c37d [Wes McKinney] Raise error when names is None in StructArray.from_arrays 990dda5 [Wes McKinney] Fix API change 2053d94 [Wes McKinney] Add test case 9c22949 [Wes McKinney] Flip order of arguments to StructArray.from_arrays, try to coerce non-pyarrow data to Array
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Feb 2, 2018
python/pyarrow/compat.py
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This seems like a workaround for a different issue -- the idea here is that o is supposed to be bytes already, so on Py2 this is a no-op
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The reason I did this was because it's being used like str in other places, which I guess technically isn't the correct way to use it.
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No, this function is only to be used for str-izing something we know to be bytes. We can make some other kind of string coercion compat function
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Yep, I'm going to start from scratch on the problem because the original PR doesn't solve the problem correctly.
Removing additional instances of using frombytes with str. Removing additional instances of using frombytes with str.
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This reverts commit 292ac90.
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…lue data Modified BinaryBuilder::Resize(int64_t) so that when building BinaryArrays with a known size, space is also reserved for value_data_builder_ to prevent internal reallocation. Author: Panchen Xue <pan.panchen.xue@gmail.com> Closes apache#1481 from xuepanchen/master and squashes the following commits: 707b67b [Panchen Xue] ARROW-1712: [C++] Fix lint errors 360e601 [Panchen Xue] Merge branch 'master' of https://github.com/xuepanchen/arrow d4bbd15 [Panchen Xue] ARROW-1712: [C++] Modify test case for BinaryBuilder::ReserveData() and change arguments for offsets_builder_.Resize() 77f8f3c [Panchen Xue] Merge pull request apache#5 from apache/master bc5db7d [Panchen Xue] ARROW-1712: [C++] Remove unneeded data member in BinaryBuilder and modify test case 5a5b70e [Panchen Xue] Merge pull request apache#4 from apache/master 8e4c892 [Panchen Xue] Merge pull request apache#3 from xuepanchen/xuepanchen-arrow-1712 d3c8202 [Panchen Xue] ARROW-1945: [C++] Fix a small typo 0b07895 [Panchen Xue] ARROW-1945: [C++] Add data_capacity_ to track capacity of value data 18f90fb [Panchen Xue] ARROW-1945: [C++] Add data_capacity_ to track capacity of value data bbc6527 [Panchen Xue] ARROW-1945: [C++] Update test case for BinaryBuild data value space reservation 15e045c [Panchen Xue] Add test case for array-test.cc 5a5593e [Panchen Xue] Update again ReserveData(int64_t) method for BinaryBuilder 9b5e805 [Panchen Xue] Update ReserveData(int64_t) method signature for BinaryBuilder 8dd5eaa [Panchen Xue] Update builder.cc b002e0b [Panchen Xue] Remove override keyword from ReserveData(int64_t) method for BinaryBuilder de318f4 [Panchen Xue] Implement ReserveData(int64_t) method for BinaryBuilder e0434e6 [Panchen Xue] Add ReserveData(int64_t) and value_data_capacity() for methods for BinaryBuilder 5ebfb32 [Panchen Xue] Add capacity() method for TypedBufferBuilder 5b73c1c [Panchen Xue] Update again BinaryBuilder::Resize(int64_t capacity) in builder.cc d021c54 [Panchen Xue] Merge pull request #2 from xuepanchen/xuepanchen-arrow-1712 232024e [Panchen Xue] Update BinaryBuilder::Resize(int64_t capacity) in builder.cc c2f8dc4 [Panchen Xue] Merge pull request #1 from apache/master
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This PR moves the `Table` class out of the Vector hierarchy and adds optimized dataframe operations to it. Currently implements an optimized `scan()` method, `filter(predicate)`, `count()`, and `countBy(column_name)` (only works on dictionary-encoded columns).
Some usage examples, based on the file generated by `js/test/data/tables/generate.py`:
``` js
> let table = Table.from(...);
> table.count()
1000000
> table.filter(col('lat').gteq(0)).count()
499718
> table.countBy('origin').toJSON()
{ Charlottesville: 166839,
'New York': 166251,
'San Francisco': 166642,
Seattle: 166659,
'Terre Haute': 166756,
'Washington, DC': 166853 }
> table.filter(col('lng').gteq(0)).countBy('origin').toJSON()
{ Charlottesville: 83109,
'New York': 83221,
'San Francisco': 83515,
Seattle: 83362,
'Terre Haute': 83314,
'Washington, DC': 83479 }
```
There are performance tests for the dataframe operations, to run them you must first generate the test data by running `npm run create:perfdata`.
The PR also includes @trxcllnt's refactor of the JS implementation to make it more closely resemble the C++ implementation. This refactor resolves multiple JIRAs: ARROW-1903, ARROW-1898, ARROW-1502, ARROW-1952 (partially), and ARROW-1985
Author: Paul Taylor <paul.e.taylor@me.com>
Author: Brian Hulette <brian.hulette@ccri.com>
Author: Brian Hulette <hulettbh@gmail.com>
Closes apache#1482 from TheNeuralBit/table-scan-perf and squashes the following commits:
52f1e0e [Brian Hulette] <, > are not commutative, misc cleanup
04b1838 [Brian Hulette] even more table tests
16b9ccb [Brian Hulette] Merge pull request apache#4 from trxcllnt/js-cpp-refactor
fe300df [Paul Taylor] fix closure es5/umd toString() iterator
3d5240a [Paul Taylor] fix more externs
10c48ad [Paul Taylor] Merge branch 'table-scan-perf' of github.com:ccri/arrow into js-cpp-refactor
dbe7f81 [Brian Hulette] Add more Table unit tests
1910962 [Brian Hulette] Add optional bind callback to scan
5bdf17f [Brian Hulette] Fix perf
8cf2473 [Brian Hulette] Merge remote-tracking branch 'origin/master' into table-scan-perf
4a41b18 [Paul Taylor] add src/predicate to the list of exports we should save from uglify
5a91fab [Paul Taylor] add more view, predicate externs
f6adfb3 [Brian Hulette] Create predicate namespace
f7bb0ed [Paul Taylor] Merge branch 'table-scan-perf' of github.com:ccri/arrow into js-cpp-refactor
e148ee4 [Paul Taylor] Merge branch 'extern-woes' into js-cpp-refactor
25cdc4a [Paul Taylor] add src/predicate to the list of exports we should save from uglify
dc7c728 [Paul Taylor] add more view, predicate externs
25e6af7 [Brian Hulette] Create predicate namespace
579ab1f [Brian Hulette] Merge pull request #2 from trxcllnt/js-cpp-refactor
f3cde1a [Paul Taylor] fix lint
9769773 [Paul Taylor] fix vector perf tests
016ba78 [Brian Hulette] Merge pull request #1 from trxcllnt/js-cpp-refactor
272d293 [Paul Taylor] Merge pull request apache#4 from ccri/empty-table
7bc7363 [Brian Hulette] Fix exception for empty Table
8ddce0a [Paul Taylor] check bounds in getChildAt(i) to avoid NPEs
f1dead0 [Paul Taylor] compute chunked nested childData list correctly
18807c6 [Paul Taylor] rename ChunkData's fields so it's more clear they're not semantically similar to other similarly named fields
7e43b78 [Paul Taylor] add test:integration npm script
a5f200f [Paul Taylor] Merge pull request apache#3 from ccri/table-from-struct
c8cd286 [Brian Hulette] Add Table.fromStruct
a00415e [Brian Hulette] Fix perf
54d4f5b [Paul Taylor] lazily allocate table and recordbatch columns, support NestedView's getChildAt(i) method in ChunkedView
40b3638 [Paul Taylor] run integration tests with local data for coverage stats
fe31ee0 [Paul Taylor] slice the flat data values before returning an iterator of them
e537789 [Paul Taylor] make it easier to run all integration tests from local data
c0fd2f9 [Paul Taylor] use the dictionary of the last chunked vector list for chunked dictionary vectors
e33c068 [Paul Taylor] Merge pull request #2 from ccri/fixed-size-list
5bb63af [Brian Hulette] Don't read OFFSET vector for FixedSizeList
614b688 [Paul Taylor] add asEpochMs to date and timestamp vectors
87334a5 [Paul Taylor] Merge branch 'table-scan-perf' of github.com:ccri/arrow into js-cpp-refactor
b7f5bfb [Paul Taylor] rename numRows to length, add table.getColumn()
e81082f [Paul Taylor] export vector views, allow cloning data as another type
700a47c [Paul Taylor] export visitors
e859e13 [Paul Taylor] fix package.json bin entry
0620cfd [Brian Hulette] use Math.fround
0126dc4 [Brian Hulette] Don't recompute total length
e761eee [Brian Hulette] Rename asJSON to toJSON
6c91ed4 [Paul Taylor] Merge branch 'master' of github.com:apache/arrow into js-cpp-refactor-merge_with-table-scan-perf
d2b18d5 [Paul Taylor] Merge remote-tracking branch 'ccri/table-scan-perf' into js-cpp-refactor-merge_with-table-scan-perf
f3f3b86 [Paul Taylor] rename table.ts to recordbatch.ts in preparation for merging latest
e3f629d [Paul Taylor] fix rest of the mangling issues
fa7c17a [Paul Taylor] passing all tests except es5 umd mangler ones
e20decd [Brian Hulette] Add license headers
edcbdbe [Brian Hulette] cleanup
20717d5 [Brian Hulette] Fixed countBy(string)
7244887 [Brian Hulette] Add table unit tests...
6719147 [Brian Hulette] Add DataFrame.countBy operation
2f4a349 [Brian Hulette] Minor tweaks
2e118ab [Brian Hulette] linter
a788db3 [Brian Hulette] Cleanup
a9fff89 [Brian Hulette] Move Table out of the Vector hierarchy
1d60aa1 [Brian Hulette] Moved DataFrame ops to Table. DataFrame is now an interface
e8979ba [Brian Hulette] Refactor DataFrame to extend Vector<StructRow>
6a41d68 [Brian Hulette] clean up table benchmarks
2744c63 [Brian Hulette] Remove Chunked/Simple DataFrame distinction
aa999f8 [Brian Hulette] Add DictionaryVector optimization for equals predicate
4d9e8c0 [Brian Hulette] Add concept of predicates for filtering dataframes
796f45d [Brian Hulette] add DataFrame filter and count ops
30f0330 [Brian Hulette] Add basic DataFrame impl ...
a1edac2 [Brian Hulette] Add perf tests for table scans
d18d915 [Paul Taylor] fix struct and map rows
61dc699 [Paul Taylor] WIP -- refactor types to closer match arrow-cpp
62db338 [Paul Taylor] update dependencies and add es6+ umd targets to jest transform ignore patterns to fix ci
6ff18e9 [Paul Taylor] ship es2015 commonJS in main package to avoid confusion
74e828a [Paul Taylor] fix typings issues (ARROW-1903)
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