Skip to content
gitdebt

apache/calcite

Star momentum, maintenance concentration, contributor health, and codebase change — one report built from public repository data.

Open on GitHub
Current stars
5,184
Activity since
2014
Latest activity
Sep 2026

Public star activity

Last 30 days
+7
Last 90 days
+7
Actions / day
1.1
Public star actions
stars from June 26, 2014 to September 12, 2026, peaking at 5,114.5.1k STARS12 YR 3 MO5.1kSEP 2026JUN 2014

5,114 stars on September 12, 2026.

stars by date
Datestars
June 26, 20141
September 29, 201418
October 25, 201426
December 12, 201443
February 19, 201558
March 14, 201565
May 4, 201580
July 7, 201595
July 23, 2015101
September 25, 2015119
November 4, 2015135
November 16, 2015142
December 20, 2015159
February 9, 2016172
February 23, 2016180
March 25, 2016196
May 3, 2016212
May 19, 2016218
June 15, 2016234
July 25, 2016252
August 9, 2016260
September 12, 2016276
October 16, 2016293
November 7, 2016303
December 7, 2016319
January 14, 2017333
January 24, 2017341
February 22, 2017356
March 17, 2017375
March 30, 2017391
April 27, 2017414
May 13, 2017432
May 26, 2017443
June 21, 2017462
July 12, 2017483
July 25, 2017490
August 22, 2017505
September 14, 2017526
September 24, 2017534
October 26, 2017555
November 21, 2017574
December 5, 2017581
January 1, 2018599
January 26, 2018617
February 5, 2018633
March 2, 2018657
March 27, 2018675
April 3, 2018683
April 26, 2018711
May 19, 2018736
May 27, 2018744
June 17, 2018764
July 12, 2018787
July 21, 2018802
August 16, 2018819
September 10, 2018840
September 18, 2018850
October 13, 2018876
November 1, 2018898
November 12, 2018913
December 1, 2018938
December 19, 2018964
January 7, 2019998
January 22, 20191,011
February 13, 20191,029
February 27, 20191,052
March 6, 20191,071
March 22, 20191,107
April 6, 20191,132
April 17, 20191,148
May 1, 20191,182
May 21, 20191,202
May 28, 20191,224
June 13, 20191,250
July 4, 20191,282
July 11, 20191,292
July 26, 20191,332
August 10, 20191,364
August 19, 20191,381
September 3, 20191,413
September 19, 20191,444
September 25, 20191,460
October 9, 20191,497
October 25, 20191,532
October 31, 20191,550
November 14, 20191,579
November 28, 20191,606
December 5, 20191,622
December 21, 20191,658
January 5, 20201,681
January 13, 20201,697
January 29, 20201,728
February 15, 20201,748
February 23, 20201,759
March 9, 20201,786
March 26, 20201,814
April 3, 20201,827
April 24, 20201,858
May 8, 20201,883
May 14, 20201,897
May 28, 20201,924
June 14, 20201,945
June 23, 20201,956
July 8, 20201,982
July 23, 20202,006
July 30, 20202,018
August 18, 20202,058
September 8, 20202,087
September 16, 20202,096
October 1, 20202,122
October 17, 20202,161
October 26, 20202,176
November 11, 20202,211
November 29, 20202,248
December 7, 20202,266
December 21, 20202,295
January 4, 20212,333
January 14, 20212,346
January 26, 20212,377
February 12, 20212,409
February 23, 20212,425
March 12, 20212,456
March 26, 20212,487
April 3, 20212,498
April 20, 20212,525
May 13, 20212,557
May 19, 20212,568
June 4, 20212,589
June 19, 20212,621
June 26, 20212,633
July 12, 20212,656
July 27, 20212,687
August 6, 20212,699
August 21, 20212,726
September 13, 20212,749
September 19, 20212,769
October 8, 20212,794
November 2, 20212,816
November 9, 20212,828
November 27, 20212,868
December 16, 20212,896
December 23, 20212,910
January 9, 20222,946
January 26, 20222,974
February 6, 20222,985
February 19, 20223,012
March 7, 20223,056
March 15, 20223,073
March 31, 20223,094
April 17, 20223,126
April 26, 20223,147
May 10, 20223,175
May 25, 20223,212
June 1, 20223,231
June 18, 20223,262
July 1, 20223,289
July 8, 20223,303
July 22, 20223,344
August 5, 20223,376
August 13, 20223,393
August 30, 20223,418
September 14, 20223,439
September 21, 20223,456
October 10, 20223,490
October 23, 20223,535
October 29, 20223,558
November 12, 20223,590
November 28, 20223,619
December 7, 20223,631
December 26, 20223,661
January 10, 20233,697
January 19, 20233,706
February 7, 20233,732
February 20, 20233,761
February 27, 20233,790
March 14, 20233,819
March 28, 20233,855
April 4, 20233,878
April 20, 20233,903
May 6, 20233,930
May 22, 20233,955
May 29, 20233,970
June 14, 20233,997
July 2, 20234,020
July 9, 20234,037
July 25, 20234,064
August 10, 20234,087
August 19, 20234,099
September 5, 20234,118
September 22, 20234,144
October 7, 20234,156
October 20, 20234,184
November 6, 20234,204
November 13, 20234,218
November 29, 20234,248
December 17, 20234,268
December 23, 20234,281
January 11, 20244,305
January 25, 20244,348
February 1, 20244,358
February 21, 20244,386
March 10, 20244,412
March 18, 20244,431
April 1, 20244,455
April 19, 20244,483
April 30, 20244,495
May 14, 20244,515
May 31, 20244,532
June 8, 20244,547
June 23, 20244,568
July 8, 20244,592
July 18, 20244,606
August 6, 20244,630
August 26, 20244,650
September 4, 20244,663
September 21, 20244,687
October 15, 20244,709
October 24, 20244,719
November 13, 20244,747
December 3, 20244,770
December 11, 20244,786
December 28, 20244,814
January 17, 20254,845
January 23, 20254,855
February 10, 20254,877
February 28, 20254,897
March 12, 20254,910
April 9, 20254,933
April 28, 20254,960
May 6, 20254,970
May 26, 20254,993
June 15, 20255,010
July 2, 20255,017
August 5, 20255,035
September 3, 20255,049
September 26, 20255,057
November 14, 20255,071
January 12, 20265,091
February 22, 20265,100
September 12, 20265,114

The last 90 days run behind its lifetime average, which is ordinary for a mature project.

Observed activity milestones: 100 around Jul 20151k around Jan 2019

The commit history reads apache/calcite a second time

methodology

Fix-labelled changes, file change frequency, ownership concentration and maintenance cadence, each computed from this repository's analyzed commit window. None of them is derived from stars, which is why they are allowed to disagree with the curve above.

Fix-labelled changes
Fix-labelled changes for apache/calcite
File change frequency
File change frequency for apache/calcite
Bus factor
Bus factor for apache/calcite
Maintenance pulse
Maintenance pulse for apache/calcite
Contributors
Contributors for apache/calcite
Language activity
Language activity for apache/calcite
Commit activity
Commit activity for apache/calcite
Recent TODO/FIXME movement
Recent TODO/FIXME movement for apache/calcite

Attention is not adoption.

Stars against usage

No published package was detected for this repository, so there is nothing to lay over star growth.

Earned badges

badge studio

Maintenance, ownership and star-momentum signals, computed from the same commit and star history and embeddable as static images.

Reading badge evidence for apache/calcite.

Notes on apache/calcite

How many stars does apache/calcite have?
GitHub currently reports 5,184 stars for apache/calcite. The chart itself is rebuilt from historical star data, which records star actions and not unstars, so it reads as an attention signal rather than a net star count.
What does recent star activity look like for calcite?
gitdebt observed about 7 public star actions for apache/calcite over the latest 90 days of archive coverage (about 7 in the latest 30). This is an approximate attention signal, not a net-star count, because unstars are not present. That's below its lifetime average activity pace, which is common for mature projects.
Is calcite still active?
Public archive data shows about 7 star actions for apache/calcite in the latest 30 days of coverage. For repository activity, use the commit heatmap, commit trend, and contributor charts on this page.
When was calcite created?
apache/calcite was created on June 25, 2014. The first public star activity observed for apache/calcite is from Jun 2014.

Read calcite against a neighbour

comparison builder
Compare with any repository

Put this drawing in your README

markdown for agents

The block below publishes the chart with its source and coverage date stated beside it — the same three facts the title block above shows, as text a reader can check. The prompt underneath hands a coding agent the badges and repo-health charts as well.

README.md · apache/calcite star history
<a href="https://gitdebt.com/apache/calcite?ref=readme">
  <picture>
    <source media="(prefers-color-scheme: dark)" srcset="https://api.gitdebt.com/api/repos/apache/calcite/chart.svg?theme=dark" />
    <img alt="apache/calcite star history" src="https://api.gitdebt.com/api/repos/apache/calcite/chart.svg?theme=light" />
  </picture>
</a>

<sub>Star history source: Historical star data · Covers through September 12, 2026 · Still updating — <a href="https://gitdebt.com/apache/calcite?ref=readme">gitdebt</a></sub>

Light and dark variants, alt text, and one provenance line. Provenance is text in your README, never baked into the image URL, so the chart stays cacheable.

Paste it into Claude Code, Cursor, Codex, or any coding agent with your checkout open. It carries the measured numbers, the exact snippets, and the rules — including replacing an existing star-history widget in place rather than stacking a second chart under it.