Fixed handling empty headers

[norberttech]

Change Log

Added

Fixed

• handling empty headers in CSV files

Changed

Removed

Deprecated

Security

---

Description

[github-actions]

Flow PHP - Benchmarks

^{_{Results of the benchmarks from this PR are compared with the results from 1.x branch.}}

Extractors

+-----------------------+-------------------+------+-----+------------------+------------------+-----------------+
| benchmark             | subject           | revs | its | mem_peak         | mode             | rstdev          |
+-----------------------+-------------------+------+-----+------------------+------------------+-----------------+
| AvroExtractorBench    | bench_extract_10k | 1    | 3   | 35.261mb +0.00%  | 820.255ms +0.60% | ±0.61% -51.79%  |
| CSVExtractorBench     | bench_extract_10k | 1    | 3   | 4.978mb +0.05%   | 340.195ms -0.68% | ±0.38% +127.82% |
| JsonExtractorBench    | bench_extract_10k | 1    | 3   | 5.130mb +0.00%   | 1.053s +0.08%    | ±1.91% +212.68% |
| ParquetExtractorBench | bench_extract_10k | 1    | 3   | 239.835mb +0.00% | 1.246s -1.07%    | ±0.34% -46.70%  |
| TextExtractorBench    | bench_extract_10k | 1    | 3   | 4.899mb +0.01%   | 34.646ms -0.81%  | ±0.61% +43.32%  |
| XmlExtractorBench     | bench_extract_10k | 1    | 3   | 4.901mb +0.01%   | 438.646ms +2.00% | ±1.03% +164.11% |
+-----------------------+-------------------+------+-----+------------------+------------------+-----------------+

Transformers

+-----------------------------+--------------------------+------+-----+------------------+-----------------+----------------+
| benchmark                   | subject                  | revs | its | mem_peak         | mode            | rstdev         |
+-----------------------------+--------------------------+------+-----+------------------+-----------------+----------------+
| RenameEntryTransformerBench | bench_transform_10k_rows | 1    | 3   | 110.601mb +0.00% | 65.523ms -1.64% | ±0.33% -54.44% |
+-----------------------------+--------------------------+------+-----+------------------+-----------------+----------------+

Loaders

+--------------------+----------------+------+-----+------------------+------------------+----------------+
| benchmark          | subject        | revs | its | mem_peak         | mode             | rstdev         |
+--------------------+----------------+------+-----+------------------+------------------+----------------+
| AvroLoaderBench    | bench_load_10k | 1    | 3   | 95.641mb +0.00%  | 465.789ms -2.07% | ±0.34% +44.75% |
| CSVLoaderBench     | bench_load_10k | 1    | 3   | 54.115mb +0.00%  | 72.773ms +0.28%  | ±0.36% -53.23% |
| JsonLoaderBench    | bench_load_10k | 1    | 3   | 106.546mb +0.00% | 52.358ms +0.79%  | ±0.16% -71.17% |
| ParquetLoaderBench | bench_load_10k | 1    | 3   | 321.757mb +0.00% | 1.486s -1.44%    | ±0.35% -65.52% |
| TextLoaderBench    | bench_load_10k | 1    | 3   | 17.939mb +0.00%  | 41.700ms +4.91%  | ±1.42% -33.78% |
+--------------------+----------------+------+-----+------------------+------------------+----------------+

Building Blocks

+-------------------------+----------------------------+------+-----+------------------+------------------+-----------------+
| benchmark               | subject                    | revs | its | mem_peak         | mode             | rstdev          |
+-------------------------+----------------------------+------+-----+------------------+------------------+-----------------+
| RowsBench               | bench_chunk_10_on_10k      | 2    | 3   | 76.676mb +0.00%  | 3.558ms +8.15%   | ±3.50% +88.65%  |
| RowsBench               | bench_diff_left_1k_on_10k  | 2    | 3   | 96.403mb +0.00%  | 180.043ms -1.27% | ±0.38% -29.09%  |
| RowsBench               | bench_diff_right_1k_on_10k | 2    | 3   | 74.928mb +0.00%  | 17.790ms -1.88%  | ±0.11% -94.65%  |
| RowsBench               | bench_drop_1k_on_10k       | 2    | 3   | 77.916mb +0.00%  | 1.661ms -6.39%   | ±0.42% -82.44%  |
| RowsBench               | bench_drop_right_1k_on_10k | 2    | 3   | 77.916mb +0.00%  | 1.716ms +0.72%   | ±1.67% +35.03%  |
| RowsBench               | bench_entries_on_10k       | 2    | 3   | 75.028mb +0.00%  | 2.531ms -3.34%   | ±0.51% -65.41%  |
| RowsBench               | bench_filter_on_10k        | 2    | 3   | 75.557mb +0.00%  | 14.918ms +3.80%  | ±0.80% -53.66%  |
| RowsBench               | bench_find_on_10k          | 2    | 3   | 75.557mb +0.00%  | 14.886ms +2.72%  | ±0.85% -56.79%  |
| RowsBench               | bench_find_one_on_10k      | 10   | 3   | 73.461mb +0.00%  | 1.806μs +12.45%  | ±2.57% -10.91%  |
| RowsBench               | bench_first_on_10k         | 10   | 3   | 73.461mb +0.00%  | 0.400μs 0.00%    | ±0.00% 0.00%    |
| RowsBench               | bench_flat_map_on_1k       | 2    | 3   | 87.015mb +0.00%  | 12.837ms +1.41%  | ±0.82% -65.86%  |
| RowsBench               | bench_map_on_10k           | 2    | 3   | 116.376mb +0.00% | 63.900ms -4.00%  | ±0.99% -47.51%  |
| RowsBench               | bench_merge_1k_on_10k      | 2    | 3   | 76.076mb +0.00%  | 1.270ms -2.69%   | ±2.25% -32.39%  |
| RowsBench               | bench_partition_by_on_10k  | 2    | 3   | 79.423mb +0.00%  | 56.130ms +1.24%  | ±1.35% +6.26%   |
| RowsBench               | bench_remove_on_10k        | 2    | 3   | 78.178mb +0.00%  | 3.786ms -1.00%   | ±0.46% -28.90%  |
| RowsBench               | bench_sort_asc_on_1k       | 2    | 3   | 73.539mb +0.00%  | 39.990ms +1.23%  | ±1.12% -40.73%  |
| RowsBench               | bench_sort_by_on_1k        | 2    | 3   | 73.540mb +0.00%  | 40.226ms -0.43%  | ±1.29% +93.10%  |
| RowsBench               | bench_sort_desc_on_1k      | 2    | 3   | 73.539mb +0.00%  | 39.953ms -0.37%  | ±1.27% +8.58%   |
| RowsBench               | bench_sort_entries_on_1k   | 2    | 3   | 75.902mb +0.00%  | 7.453ms +1.29%   | ±0.83% +313.81% |
| RowsBench               | bench_sort_on_1k           | 2    | 3   | 73.461mb +0.00%  | 29.038ms -0.12%  | ±1.13% -43.09%  |
| RowsBench               | bench_take_1k_on_10k       | 10   | 3   | 73.461mb +0.00%  | 13.306μs +0.09%  | ±0.35% -0.50%   |
| RowsBench               | bench_take_right_1k_on_10k | 10   | 3   | 73.461mb +0.00%  | 15.583μs -1.74%  | ±1.38% -11.93%  |
| RowsBench               | bench_unique_on_1k         | 2    | 3   | 96.404mb +0.00%  | 182.898ms -0.63% | ±0.72% -32.79%  |
| NativeEntryFactoryBench | bench_entry_factory        | 1    | 3   | 116.707mb +0.00% | 477.875ms -3.94% | ±1.55% +334.88% |
| NativeEntryFactoryBench | bench_entry_factory        | 1    | 3   | 60.186mb +0.00%  | 250.805ms +0.94% | ±1.15% +27.21%  |
| NativeEntryFactoryBench | bench_entry_factory        | 1    | 3   | 15.119mb +0.00%  | 52.417ms -0.21%  | ±1.72% +4.61%   |
| TypeDetectorBench       | bench_type_detector        | 1    | 3   | 59.958mb +0.00%  | 432.202ms -0.77% | ±0.78% -30.54%  |
| TypeDetectorBench       | bench_type_detector        | 1    | 3   | 14.497mb +0.00%  | 85.318ms -0.02%  | ±0.84% +57.54%  |
+-------------------------+----------------------------+------+-----+------------------+------------------+-----------------+