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Topics: parquet

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2 repositories by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)

Language: Java
Topic: parquet
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1.questdb / questdb

QuestDB is a high performance, open-source, time-series database

time-series
low-latency
database
sql
questdb
tsdb
+14 more

Java APACHE-2.017K total1.7K forks

+712 stars

from 16,781 · score 6.57

2.gchq / GafferArchived

A large-scale entity and relation database supporting aggregation of properties

accumulo
graph
graph-database
hadoop
big-data
aggregation
+3 more

Java APACHE-2.01.8K total363 forks

+4 stars

from 1,784 · score 1.61

Order: Attention Score

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Ranked by stars gained in the window. The score is the natural log of one plus that gain, so a repository's rank is exactly its star gain's rank.

score = log1p(net stars gained in the trailing T complete UTC days)

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The longest window is 180 days. Star History from the Repository Host goes back at most 180 days before a repository's first Observation. A longer window needs more days of Observations first. A repository younger than the window is not ranked in it.

The filters narrow the same eligible repositories. A repository matches the topics when it has any of them. Total stars is the count now. Last push and creation on the Repository Host count back from the start of today (UTC). The counts beside the languages, licenses, and topics include all ranked repositories in the window. A Tag holds the repositories that have it; see Tags.

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