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cc @siddharthteotia @jacques-n This is an attempt to refactor TransferImpl out of vector classes. Does this make sense, are there an performance concerns? My assumption is there won't be many calls to |
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Given type erasure and your implementation, every call to copyValueSafe would require type dispatching. |
Author
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Ahh, I didn't saw there is a single value copy method in I see, shouldn't do this then. |
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I think we should still do this now. It may be a performance hit but I can't imagine it being that important. I think cleanliness is super important |
Author
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I haven't fully convinced myself which way is better - codegen doesn't seem such a terrible idea either, considering we are still codegen the value holder classes and tranferImpl class is pretty simple. (Unless we are committed to remove all codegen.) Let me think a bit more on this. |
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How about addressing such cases once the new infrastructure is there -- we had noted down couple of such things as "TODO" at the beginning of BaseNullableVariableWidthVector and BaseNullableFixedWidthVector. May be we can open up follow up JIRAs if people agree. |
Author
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Sounds good. |
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…is alive before enqueue new record when download file. use pyarrow download file will raise queue.Full exceptions sometimes. jira: https://issues.apache.org/jira/browse/ARROW-2002 Author: kmiku7 <kakoimiku@gmail.com> Closes apache#1485 from kmiku7/master and squashes the following commits: 8d5f905 [kmiku7] fix queue.FULL exception when writer thread write data slowly. 722182b [kmiku7] Merge pull request #1 from apache/master
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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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https://issues.apache.org/jira/browse/ARROW-3965 This creates an object which configures the BaseAllocator and Calendar used during to configure the translation from a JDBC ResultSet to an Arrow vector. Author: Mike Pigott <mpigott@gmail.com> Author: Michael Pigott <mikepigott@users.noreply.github.com> Closes apache#3133 from mikepigott/jdbc-to-arrow-config and squashes the following commits: be95426 <Mike Pigott> ARROW-3965: JDBC-To-Arrow Config Builder javadocs. d6c64a7 <Mike Pigott> ARROW-3965: JdbcToArrowConfigBuilder d7ca982 <Mike Pigott> Merge branch 'master' into jdbc-to-arrow-config 789c8c8 <Michael Pigott> Merge pull request apache#4 from apache/master e5b19ee <Michael Pigott> Merge pull request apache#3 from apache/master 3b17c29 <Michael Pigott> Merge pull request #2 from apache/master 5b1b364 <Mike Pigott> Merge branch 'master' into jdbc-to-arrow-config 881c6c8 <Michael Pigott> Merge pull request #1 from apache/master bb3165b <Mike Pigott> Updating the function calls to use the JdbcToArrowConfig versions. 68c91e7 <Mike Pigott> Modifying the jdbcToArrowSchema and jdbcToArrowVectors methods to receive JdbcToArrowConfig objects. 8d6cf00 <Mike Pigott> Documentation for public static VectorSchemaRoot sqlToArrow(Connection connection, String query, JdbcToArrowConfig config) 4f1260c <Mike Pigott> Adding documentation for public static VectorSchemaRoot sqlToArrow(ResultSet resultSet, JdbcToArrowConfig config) df632e3 <Mike Pigott> Updating the SQL tests to include JdbcToArrowConfig versions. b270044 <Mike Pigott> Updated validaton & documentation, and unit tests for the new JdbcToArrowConfig. da77cbe <Mike Pigott> Creating a configuration class for the JDBC-to-Arrow converter.
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https://issues.apache.org/jira/browse/ARROW-3923 Hello! I was reading through the JDBC source code and I noticed that a java.util.Calendar was required for creating an Arrow Schema and Arrow Vectors from a JDBC ResultSet, when none is required. This change makes the Calendar optional. Unit Tests: The existing SureFire plugin configuration uses a UTC calendar for the database, which is the default Calendar in the existing code. Likewise, no changes to the unit tests are required to provide adequate coverage for the change. Author: Michael Pigott <mikepigott@users.noreply.github.com> Author: Mike Pigott <mpigott@gmail.com> Closes apache#3066 from mikepigott/jdbc-timestamp-no-calendar and squashes the following commits: 4d95da0 <Mike Pigott> ARROW-3923: Supporting a null Calendar in the config, and reverting the breaking change. cd9a230 <Mike Pigott> Merge branch 'master' into jdbc-timestamp-no-calendar 509a1cc <Michael Pigott> Merge pull request apache#5 from apache/master 789c8c8 <Michael Pigott> Merge pull request apache#4 from apache/master e5b19ee <Michael Pigott> Merge pull request apache#3 from apache/master 3b17c29 <Michael Pigott> Merge pull request #2 from apache/master 881c6c8 <Michael Pigott> Merge pull request #1 from apache/master 089cff4 <Mike Pigott> Format fixes a58a4a5 <Mike Pigott> Fixing calendar usage. e12832a <Mike Pigott> Allowing for timestamps without a time zone.
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https://issues.apache.org/jira/browse/ARROW-3966 This change includes apache#3133, and supports a new configuration item called "Include Metadata." If true, metadata from the JDBC ResultSetMetaData object is pulled along to the Schema Field Metadata. For now, this includes: * Catalog Name * Table Name * Column Name * Column Type Name Author: Mike Pigott <mpigott@gmail.com> Author: Michael Pigott <mikepigott@users.noreply.github.com> Closes apache#3134 from mikepigott/jdbc-column-metadata and squashes the following commits: 02f2f34 <Mike Pigott> ARROW-3966: Picking up lost change to support null calendars. 7049c36 <Mike Pigott> Merge branch 'master' into jdbc-column-metadata e9a9b2b <Michael Pigott> Merge pull request apache#6 from apache/master 65741a9 <Mike Pigott> ARROW-3966: Code review feedback cc6cc88 <Mike Pigott> ARROW-3966: Using a 1:N loop instead of a 0:N-1 loop for fewer index offsets in code. cfb2ba6 <Mike Pigott> ARROW-3966: Using a helper method for building a UTC calendar with root locale. 2928513 <Mike Pigott> ARROW-3966: Moving the metadata flag assignment into the builder. 69022c2 <Mike Pigott> ARROW-3966: Fixing merge. 4a6de86 <Mike Pigott> Merge branch 'master' into jdbc-column-metadata 509a1cc <Michael Pigott> Merge pull request apache#5 from apache/master 789c8c8 <Michael Pigott> Merge pull request apache#4 from apache/master e5b19ee <Michael Pigott> Merge pull request apache#3 from apache/master 3b17c29 <Michael Pigott> Merge pull request #2 from apache/master d847ebc <Mike Pigott> Fixing file location 1ceac9e <Mike Pigott> Merge branch 'master' into jdbc-column-metadata 881c6c8 <Michael Pigott> Merge pull request #1 from apache/master 03091a8 <Mike Pigott> Unit tests for including result set metadata. 72d64cc <Mike Pigott> Affirming the field metadata is empty when the configuration excludes field metadata. 7b4527c <Mike Pigott> Test for the include-metadata flag in the configuration. 7e9ce37 <Mike Pigott> Merge branch 'jdbc-to-arrow-config' into jdbc-column-metadata bb3165b <Mike Pigott> Updating the function calls to use the JdbcToArrowConfig versions. a6fb1be <Mike Pigott> Fixing function call 5bfd6a2 <Mike Pigott> Merge branch 'jdbc-to-arrow-config' into jdbc-column-metadata 68c91e7 <Mike Pigott> Modifying the jdbcToArrowSchema and jdbcToArrowVectors methods to receive JdbcToArrowConfig objects. b5b0cb1 <Mike Pigott> Merge branch 'jdbc-to-arrow-config' into jdbc-column-metadata 8d6cf00 <Mike Pigott> Documentation for public static VectorSchemaRoot sqlToArrow(Connection connection, String query, JdbcToArrowConfig config) 4f1260c <Mike Pigott> Adding documentation for public static VectorSchemaRoot sqlToArrow(ResultSet resultSet, JdbcToArrowConfig config) e34a9e7 <Mike Pigott> Fixing formatting. fe097c8 <Mike Pigott> Merge branch 'jdbc-to-arrow-config' into jdbc-column-metadata df632e3 <Mike Pigott> Updating the SQL tests to include JdbcToArrowConfig versions. b270044 <Mike Pigott> Updated validaton & documentation, and unit tests for the new JdbcToArrowConfig. da77cbe <Mike Pigott> Creating a configuration class for the JDBC-to-Arrow converter. a78c770 <Mike Pigott> Updating Javadocs. 523387f <Mike Pigott> Updating the API to support an optional 'includeMetadata' field. 5af1b5b <Mike Pigott> Separating out the field-type creation from the field creation.
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…mpute module Author: Nicolas Trinquier <nstq@protonmail.ch> Author: Nicolas Trinquier <ntrinquier@users.noreply.github.com> Author: Neville Dipale <nevilledips@gmail.com> Closes apache#3741 from ntrinquier/ARROW-4605 and squashes the following commits: 344379a <Nicolas Trinquier> Initialize vectors with a capacity 257d235 <Nicolas Trinquier> Add support for null values in limit and filter f0578f6 <Nicolas Trinquier> Add tests for limit and filter with BinaryArray 728884b <Nicolas Trinquier> Merge pull request #1 from nevi-me/ARROW-4605 58d1f5c <Nicolas Trinquier> Merge branch 'ARROW-4605' into ARROW-4605 5a1047c <Nicolas Trinquier> Name variables consistently 2e9616b <Nicolas Trinquier> Add documentation for the limit function 2f44a8a <Nicolas Trinquier> Use the size of the array as limit instead of returning an error 6422e18 <Neville Dipale> cargo fmt 2a389a3 <Neville Dipale> create BinaryArray directly from byte slice to prevent converting to String > &str > & b20ea6d <Nicolas Trinquier> Do bound checking in limit function 32a2f85 <Nicolas Trinquier> Add tests for limit and filter 0ca0412 <Nicolas Trinquier> Rewrite filter and limit using macros d216fa0 <Nicolas Trinquier> Move filter and limit to array_ops
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