data/arrow-commits/README.md

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# arrow-commits

Commits to the apache/arrow repository as of ~2024-03-06 as generated by
`git log`, interpreted by the [gert package for R](https://docs.ropensci.org/gert/),
and written by the [arrow package for R](https://arrow.apache.org/docs/r) as an uncompressed
[Arrow IPC Stream](https://arrow.apache.org/docs/format/Columnar.html#serialization-and-interprocess-communication-ipc).
For comparison and testing purposes, a line-delimited JSON version is also included.
The data contain 15,487 rows, 5 columns, and are approximiatly 2 MB in size.

Read in R:

```r
library(arrow, warn.conflicts = FALSE)
read_ipc_stream("data/arrow-commits/arrow-commits.arrows")
# # A tibble: 15,487 × 5
#    commit                                time                files merge message
#    <chr>                                 <dttm>              <int> <lgl> <chr>
#  1 49cdb0fe4e98fda19031c864a18e6156c6ed… 2024-03-07 02:00:52     2 FALSE GH-403…
#  2 1d966e98e41ce817d1f8c5159c0b9caa4de7… 2024-03-06 21:51:34     1 FALSE GH-403…
#  3 96f26a89bd73997f7532643cdb27d04b7097… 2024-03-06 20:29:15     1 FALSE GH-402…
#  4 ee1a8c39a55f3543a82fed900dadca791f6e… 2024-03-06 07:46:45     1 FALSE GH-403…
#  5 3d467ac7bfae03cf2db09807054c5672e195… 2024-03-05 16:13:32     1 FALSE GH-201…
#  6 ef6ea6beed071ed070daf03508f4c14b4072… 2024-03-05 14:53:13    20 FALSE GH-403…
#  7 53e0c745ad491af98a5bf18b67541b12d779… 2024-03-05 12:31:38     2 FALSE GH-401…
#  8 3ba6d286caad328b8572a3b9228045da8c8d… 2024-03-05 08:15:42     6 FALSE GH-400…
#  9 4ce9a5edd2710fb8bf0c642fd0e3863b01c2… 2024-03-05 07:56:25     2 FALSE GH-401…
# 10 2445975162905bd8d9a42ffc9cd0daa0e19d… 2024-03-05 01:04:20     1 FALSE GH-403…
# # ℹ 15,477 more rows
# # ℹ Use `print(n = ...)` to see more rows
```

Read in Python:

```python
from pyarrow import ipc

with ipc.open_stream("data/arrow-commits/arrow-commits.arrows") as stream:
    stream.read_all()

# pyarrow.Table
# commit: string
# time: timestamp[us, tz=UTC]
# files: int32
# merge: bool
# message: string
# ----
# commit: [["49cdb0fe4e98fda19031c864a18e6156c6edbf3c","1d966e98e41ce817d1f8c5159c
# time: [[2024-03-07 02:00:52.000000Z,2024-03-06 21:51:34.000000Z,2024-03-06 20:29
# files: [[2,1,1,1,1,...,1,8,2,2,4],[19,3,8,33,1,...,1,1,2,3,7],...,[7,21,2,3,6,..
# merge: [[false,false,false,false,false,...,false,false,false,false,false],[false
# message: [["GH-40370: [C++] Define ARROW_FORCE_INLINE for non-MSVC builds (#4037
```