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q2 on TimescaleDB is 5 ms, not about 2 - #384

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q2 on TimescaleDB is 5 ms, not about 2#384
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@jdatcmd jdatcmd commented Aug 4, 2026

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One-word correction to #381.

The paragraph explaining why the one-host queries are far apart said TimescaleDB answers q2 "in about 2 milliseconds". The serial table in the same file says 5, and the 442x figure quoted three paragraphs above is exactly 2,211 / 5. There is no 2 ms cell in that row; the nearest is q1 at 4.

A number in the prose that disagrees with the table it explains is the specific failure #381 was written to correct.

Everything else in #381 I verified on the bench and it holds: the correlations (0.0133 for time, -0.0036 for hostname), the zero group skipping (667 of 667 read, 0 removed, 0 vectors skipped, 99,995,680 rows filtered to return 4,320), and all eight multipliers against the table.

Docs only.

🤖 Generated with Claude Code

The paragraph explaining why the one-host queries are far apart said TimescaleDB
answers q2 "in about 2 milliseconds". The serial table in the same file says 5,
and the 442x figure quoted three paragraphs above is 2,211 / 5. There is no 2 ms
cell in that row; the nearest is q1 at 4.

A number in the prose that disagrees with the table it explains is the specific
failure #381 was written to correct, so it should not survive in it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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jdatcmd merged commit 9a4eab4 into main Aug 4, 2026
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jdatcmd deleted the docs/q2-timescale-figure branch August 4, 2026 18:30
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