🚀 Resampling (#1495)
We are pleased to introduce a first version of resampling into ArcticDB.
Using the QueryBuilder you can easily resample timseries data as part of the read. The following code will resample a symbol into hourly buckets, for example. Please see the QueryBuilder docs for more info.
q = adb.QueryBuilder()
q = q.resample("h").agg({"to_sum": "sum"})
lib.read("symbol", query_builder=q).data
🚀 Features
Remove Composite from processing pipeline (#1722)
Refactor VersionMap to include all combinations of LoadTypes and whether to include_deleted (#1443)
Multiple aggregators per column are now possible in QueryBuilder (#1468)
Add s3 custom ca support (#1338)
Add version_chain ASV benchmarks (#1508)
Support mongodb+srv connection strings (#1513)
Enhancement/515/support metadata in finalize staged data (#1525)
list_snapshots: Add option to skip loading metadata (#1531)
LibraryTool add read_index (#1533)
Make service alive checking more universal (#1607)
Enhancement/1610/method to force compact symbol list (#1624)
🐛 Fixes
Add maybe_unused to fix MSVC compilation error by @vasil-pashov in #1739
Properly hash descriptor in v1 (master) by @willdealtry in #1682
Bugfix 1692: fix batch read with row range no query builder (#1710)
Bugfix 1720: Speedup processing pipeline with lots of columns (#1723)
Fix use after move in op_log.cpp (#1732)
Implement support for very old style symbol list entries. (#1630)
Fix ArcticDB reading streaming data (#1647)
Add validate_index arg to staged data finalization in both V1 and V2 APIs (#1694)
Fix sort_and_finalize_staged_data (#1617)
Bugfix 1609: Allow parallel appends when incomplete index values match last existing index value in the symbol (#1619)
Fix SYMBOL_LIST Segment index out of bounds bug (#1473)
Fix overflow bug on append and update (#1585)
Bugfix/1250/compact incompletes rationalisation (#1467)
Guard against numpy v2 to prevent breakage when it gets released (#1465)
Consistently handle timezones in QueryBuilder filtering (#1483)
Align azure timeout with s3 (#1487)
bugfix/1247: Don't create an lmdb library if the name is invalid. (#1481)
Cleanup arctic client after usage in local_quary_builder in ASV (#1522)
Bugfix/1518/get description date range incorrect after delete data in range (#1523)
Bugfix 1507+1509: dynamic schema different index append fixes (#1529)
Only write ref key once when writing with prune_previous_versions (#1560)
Fix #1148: Show clearer error message for mismatched types in QueryBuilder (#1557)
Bugfix 1615: Fix segfault in benchmark_clause.cpp (#1616)
Bugfix 1612: Raise a meaningful exception type/message when an empty string is provided as a symbol/snapshot name (#1618)
Adapt Raise to use format string as message directly if no args are given (#1606)
Restore mistake in #1315 (#1482)
Update docstring: added section to clarify that an empty df does not delete (#1592)
New Contributors
- @StageTired made their first contribution in #1485
Full Changelog: v4.4.3...v4.5.0
