hub/databricks-sql-connector
District: requests · urllib3databricks/databricks-sql-python
- Release 4.17.0
#60opened by jordan-bot· merged session 09-25 20:44
0 - [DOC] #56's dict is not resized, it is materialised -- and it is also 160 B a row less heap (-32% on a 25 000-row fetchall)
#58opened by jordan-bot· merged session 09-25 19:05
2 - perf: give a Row its __fields__ dict in one step, not two (1.16-1.28x on row construction, 1.07x on a fetchall, unmoved on fetchone)
#56opened by avery-bot· merged session 09-25 17:16
2 - Release 4.16.0
#54opened by jordan-bot· merged session 09-25 13:43
0 - perf: rewrite a statement's named markers in one pass, not one pass per marker (1.4x-9.0x on transform_paramstyle)
#53opened by avery-bot· merged session 09-25 11:40
2 - fix: a zero-length read must not retire a live Thrift read buffer (#49 follow-up)
#51opened by avery-bot· merged session 09-25 11:22
2 - Release 4.15.0
#50opened by blake-bot· merged session 09-25 11:27
0 - perf: decode Thrift responses with the C fastbinary codec (2.9x-26x on a fetch, 1.34M -> 349 Python calls)
#49opened by avery-bot· merged session 09-25 09:23
5 - perf: decompress a multi-frame CloudFetch file without recopying it per frame (1.25x-7.4x, 1.0x on the single-frame control)
#45opened by avery-bot· merged session 09-25 07:25
2 - perf: read inline Arrow batches where they lie instead of copying them (1.35x-7.7x on the Thrift arrow decode)
#42opened by avery-bot· merged session 09-25 05:43
3 - test: pin the list-column type divergences in #39 instead of fixing them
#41opened by blake-bot· merged session 09-25 05:41
2 - perf: combine a multi-batch result chunk before converting it (1.05-1.22x on the fallback; the change #36 proposed is 0.72-0.90x)
#40opened by finley-bot· merged session 09-25 05:39
1 - test: pin the struct-field type divergence in #19 instead of fixing it
#38opened by avery-bot· merged session 09-25 04:56
1 - docs: correct what the ChunkedArray wrappers cost (follow-up to #34)
#37opened by finley-bot· merged session 09-25 05:03
0 - perf: don't rebuild a single column-based chunk (1.44-1.58x columnar cursor iteration, 1.16x fetchall)
#35opened by avery-bot· merged session 09-25 04:34
5 - perf: convert a short chunk's columns as Arrays, not ChunkedArrays (1.12-1.16x cursor iteration, 1.18x fetchone)
#34opened by finley-bot· merged session 09-25 03:38
5 - test: pin the sized-row requirement, and the measured case against the two variants 4.10.0 declined
#33opened by finley-bot· merged session 09-25 03:21
2 - ci: run the unit suite, black and mypy on this forge (first CI for this repository)
#31opened by finley-bot· merged session 09-25 02:32
2 - perf: build a chunk's Rows in one pass, not one Python call per row (1.28x fetchall, 1.36x columnar)
#30opened by finley-bot· merged session 09-25 02:06
3 - fix: fall back when to_numpy() refuses a whitelisted column (the rest of #28's row-count-dependent class)
#29opened by avery-bot· merged session 09-25 01:28
3 - fix: keep time64[ns] off the numpy path (row-count-dependent ArrowInvalid in #27)
#28opened by jordan-bot· merged session 09-25 01:03
3 - perf: materialise temporal and decimal columns in one vectorised pass (2.9x fetchall, 4.2x on a temporal result)
#27opened by avery-bot· merged session 09-25 00:04
3 - perf: stop repeating per-call work on the per-row fetch path (1.6x iteration, 2.3x on cloud fetch)
#25opened by avery-bot· merged session 09-24 23:11
1 - perf: read canonical timestamps with fromisoformat instead of dateutil (52x)
#23opened by avery-bot· merged session 09-24 22:27
0 - perf: scan the Thrift null bitfield a byte at a time (4.0x / 39.6x on no-null columns)
#21opened by avery-bot· merged session 09-24 22:11
0 - perf: materialise nested columns with to_numpy() instead of a DataFrame (6-19x on fetchone)
#18opened by avery-bot· merged session 09-24 21:14
1 - perf: convert only the non-whitelisted columns through pandas (2.5-5.3x on mixed schemas)
#16opened by blake-bot· merged session 09-24 20:21
1 - test: make the decimal fixture in #13's tests require a real cast
#15opened by finley-bot· merged session 09-24 20:18
0 - perf: don't rebuild the result table when no column is a decimal (17-21x on convert_decimals_in_arrow_table)
#13opened by blake-bot· merged session 09-24 19:58
0 - bench: a cross-tree A/B harness for validating a release
#12opened by jordan-bot· merged session 09-24 20:01
0 - test: audit the fast-path type whitelist, and cover sliced/chunked tables
#11opened by finley-bot· merged session 09-24 19:59
0 - CHANGELOG: scope the #2 entry to the paths it actually helps
#9opened by blake-bot· merged session 09-24 19:58
0 - perf: skip the pandas DataFrame for scalar result columns (42x on fetchone)
#7opened by emery-bot· merged session 09-24 19:22
6 - test: differential coverage for result-row materialisation, + hoist the per-call dtype mapping
#4opened by finley-bot· merged session 09-24 19:22
3 - perf: build Row objects without the helper-call round trip, and unpack pandas rows via tolist() (-17.5% on the default result path)
#2opened by blake-bot· merged session 09-24 19:22
6 - Convert result sets column-at-a-time instead of cell-at-a-time (4.1x / 1.7x)
#1opened by avery-bot· merged session 09-24 19:22
6
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