Timescale License

Also known as TSL, TSL Agreement, Timescale License Agreement.

Commercial use: allowed
Share alike: required
Attribution: required (keep the copyright and license notices)

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Write this as a license text (needs an account) DALICC reads the model above and writes what it permits, requires and prohibits in plain English. Without an account, the Text download above writes the model out from the vocabulary.

Canonical URI https://dalicc.net/licenselibrary/Timescale-License

Permissions

Commercial use from the text
Derivative works from the text
Derive from the text
Duties
- Notice from the text
- Share alike from the text
Distribute from the text
Duties
- Notice from the text
- Share alike from the text
Modified works from the text
Modify from the text
Duties
- Notice from the text
- Share alike from the text
Reproduce from the text

Prohibitions

Change license from the text
Sell copy from the text
Sublicense from the text

License-wide duties

This license states no duties that apply to the work as a whole.

What applies by default

The statements above are the library's reading of this license: each is marked with the sentence it rests on, or as a library convention where the text is not explicit. The statements below are the ones the DALICC reasoner supplies for acts the license says nothing about, from the default rules of the dependency graph it reasons with. Each one names the legal source it rests on. None of it is in the record.

Promote by default rule (adopted)

This license says nothing about Promote, and the graph applies this reading in all jurisdictions it covers: it is not permitted unless the license permits it.

A licence that says nothing about endorsement is read as not allowing it: the licence gives the licensee no right to use the licensor's name or marks in a way that states or implies that the licensor endorses the licensee or its product, while stating truthfully that a work is based on or uses the licensed work is a different act that this rule does not decide. A copyright licence grants rights in the work, and the right to use a name or a trademark is a separate right under trademark law and the protection of names, which a silent copyright licence does not pass on. Combining a licence that is silent about endorsement with one that permits it shows a conflict marked as coming from this rule.

Basis Trademark and name rights are separate from copyright: Regulation (EU) 2017/1001 article 9 lets the proprietor of an EU trade mark prevent all third parties not having his consent from using the sign in the course of trade, and Directive (EU) 2015/2436 article 10, 15 U.S.C. 1114 and 1125(a), section 12 BGB and section 43 ABGB protect marks and names in the same way. The library's evidence is Creative Commons 4.0 section 2(b)(2): Patent and trademark rights are not licensed under this Public License. A copyright licence that is silent grants no right to use the licensor's name or marks to suggest endorsement (Worldwide)

Further terms

These are the things the license says about itself beyond the acts it permits, forbids and requires: when it ends, how long there is to put a breach right, which law governs it, and so on. A term that comes from the DALICC vocabulary links to its definition.

Field of use restriction: internal business use and Your Value Added Products or Services, but not time-sharing, database-as-a-service or any service offering that makes the software available to third parties for time-series database functions
Governing law: the law of the State of New York, United States
Government rights limitation: United States government end users are licensed the software as a Commercial Item with only the rights every other end user has under the agreement
Terminates on breach: Yes

Clauses

Warranty disclaimer

TO THE MAXIMUM EXTENT PERMITTED UNDER APPLICABLE LAW, ALL TIMESCALE SOFTWARE PROVIDED UNDER THIS TSL AGREEMENT, INCLUDING ALL PORTIONS OF THE TIMESCALE SOFTWARE SUPPLIED ON A TRIAL BASIS, ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND TIMESCALE DISCLAIMS ALL SUCH WARRANTIES, WHETHER EXPRESS, STATUTORY, OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, AND ANY IMPLIED WARRANTIES ARISING FROM USAGE OF TRADE, COURSE OF DEALING, OR COURSE OF PERFORMANCE.

Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED UNDER APPLICABLE LAW, IN NO EVENT SHALL TIMESCALE OR ITS LICENSORS BE LIABLE TO YOU OR ANY THIRD PARTY FOR ANY DIRECT OR INDIRECT DAMAGES, INCLUDING BUT NOT LIMITED TO ANY LOSS OF PROFITS OR REVENUE, LOSS OF USE, BUSINESS INTERRUPTION, LOSS OF DATA, COST OF COVER OR SUBSTITUTE GOODS OR SERVICES, OR FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, OR EXEMPLARY DAMAGES OF ANY KIND, HOWEVER CAUSED, RELATED TO, OR ARISING OUT OF THIS TSL AGREEMENT, ITS TERMINATION OR THE PERFORMANCE OR FAILURE TO PERFORM THIS TSL AGREEMENT, OR THE USE OR INABILITY TO USE THE TIMESCALE SOFTWARE, WHETHER ALLEGED AS A BREACH OF CONTRACT, BREACH OF WARRANTY, TORTIOUS CONDUCT, INCLUDING NEGLIGENCE, OR ANY OTHER LEGAL THEORY, EVEN IF TIMESCALE HAS BEEN ADVISED OR IS AWARE OF THE POSSIBILITY OF SUCH DAMAGES.

Additional clauses

BY INSTALLING OR USING SUCH SOFTWARE, YOU AGREE THAT YOU HAVE READ AND AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THIS TSL AGREEMENT.

Info

Target asset types: Software
Region / jurisdiction: Worldwide
Validity: Perpetual
Source: https://github.com/timescale/timescaledb/blob/main/tsl/LICENSE-TIMESCALE
Legal code: https://raw.githubusercontent.com/timescale/timescaledb/main/tsl/LICENSE-TIMESCALE
This description is published under: Creative Commons Attribution 4.0 International
Publisher: Timescale, Inc.
SPDX identifier: TSL (provisional, the record declares none)
DALICC identifier: Timescale-License

This record is published under CC BY 4.0. Credit it as: DALICC License Library, DALICC - Verein zur Förderung der Rechtssicherheit in der Datenbewirtschaftung, https://dalicc.net, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). The license it describes belongs to its publisher.

Use this license

Everything below is generated from this record. Replace the example address with the address of your own work.

JSON sidecar

{
  "license-uri": "https://dalicc.net/licenselibrary/Timescale-License",
  "license-title": "Timescale License",
  "spdx-id": null,
  "asset": null,
  "generated-by": "DALICC"
}

RDF, Turtle

@prefix cc: <http://creativecommons.org/ns#> .

<https://example.org/my-work>
    cc:license <https://dalicc.net/licenselibrary/Timescale-License> .

RDF, JSON-LD

{
  "@context": {
    "cc": "http://creativecommons.org/ns#"
  },
  "@id": "https://example.org/my-work",
  "cc:license": {
    "@id": "https://dalicc.net/licenselibrary/Timescale-License"
  }
}

This license carries no attribution duty, so no credit line is offered here.

Badge

Markdown

[![License: Timescale License](https://dalicc.net/license-library/Timescale-License/badge.svg)](https://dalicc.net/license-library/Timescale-License)

HTML

<a href="https://dalicc.net/license-library/Timescale-License"><img src="https://dalicc.net/license-library/Timescale-License/badge.svg" alt="License: Timescale License"></a>

Review

Written from the license text by: Giray Havur
Written on: 2026-09-22
Second review: not yet done
Record changed since this review: yes (version 2, 2026-09-24)
Findings: 12 recorded, 7 applied to the record, 0 proposed

The record models the Timescale License, which governs the part of a time-series database that is not under the Apache License 2.0. The grant is drawn as four narrow licences, internal use, value added products or services, distribution of unmodified standalone copies, and derivative works, and section 2.2 then forbids offering the software as a database-as-a-service or selling it. It is not an open source licence.

12 findings

info Rubric 1 spdx:licenseId applied

File name, record identifier and IRI local name agree. The triple is left out: the SPDX list does not carry this licence and no identifier is invented. cc:legalcode points at the file the publisher ships and dct:source at the same file's page. dct:publisher is Timescale, Inc., which the text names as a party. dalicc:licenseVersion is left out: the text carries a posted date rather than a version number.
info Rubric 2 odrl:target applied

dcmitype:Software only. The text covers database software and the documentation that goes with it, and the documentation is named only in the government rights clause.
major Rubric 3 odrl:permission applied

Section 2.1 grants 'limited, non-exclusive, non-transferable, fully paid up, worldwide licenses' in four parts: copying, compiling, installing and using for internal business purposes; using and distributing as part of Your Value Added Products or Services; copying and distributing unmodified standalone copies; and preparing Derivative Works. That gives odrl:reproduce, odrl:distribute, odrl:modify, odrl:derive, cc:DerivativeWorks and dalicc:ModifiedWorks. cc:CommercialUse is permitted, because a Value Added Product or Service is expressly a product a licensee sells. No dalicc:patentGrant: the text grants no patent licence and reserves every right not expressly granted.
major Rubric 4 odrl:prohibition applied

dalicc:sellCopy and dalicc:sublicense for section 2.2, 'You agree not to ... transfer, sell, rent, lease, sublicense, loan, or otherwise transfer or make available any TSL Licensed Software, whether in source code or binary executable form.' dalicc:ChangeLicense because every permitted copy travels 'subject to the terms and conditions of the most current version of this TSL Agreement' and section 2.4 grants nothing by implication. dalicc:promote is absent: the text has no trademark or endorsement clause, which is unusual for a licence of this kind.
major Rubric 5 odrl:duty applied

cc:Notice and cc:ShareAlike hang on odrl:distribute, odrl:modify and odrl:derive for section 2.1(b)(1), 'You notify Your customers that use of such Timescale Software or Derivative Works is subject to this TSL Agreement and You provide to each such customer a copy of the most current version of this TSL Agreement or a URL from which the most current version of this TSL Agreement may be obtained'.
major Rubric 6 dalicc:WarrantyDisclaimer applied

Sections 5 and 6 are separate, so each goes into the property that names it. Twelve further clauses are quoted in dalicc:additionalClauses, including all four parts of the grant, the prohibitions and the definition of a Value Added Product or Service.
major Rubric 7 dalicc:governingLaw applied

dalicc:governingLaw is 'the law of the State of New York, United States' for section 7.3, and dalicc:governmentRightsLimitation carries section 7.8, the same use of that property as on Watcom-1.0. cc:jurisdiction stays dalicc:worldwide because the grant says worldwide. dalicc:terminatesOnBreach is true for section 4, which gives no cure period at all.
gap Rubric 8 odrl:duty none

Section 2.1(b)(2) obliges the licensee to bind its own customers: 'the customer is prohibited, either contractually or technically, from defining, redefining, or modifying the database schema or other structural aspects of database objects'. That is a duty to impose a restriction downstream. dalicc:addLimitation is a rule action a licence permits or prohibits, not a duty, so it is not used here. Quoted. Proposed term: dalicc:imposeDownstreamRestriction, a duty action.
gap Rubric 8 dalicc:fieldOfUseRestriction none

The database-as-a-service bar has no term. dalicc:fieldOfUseRestriction is the nearest literal and section 2.2 is quoted in full. Proposed term: dalicc:competingServiceRestriction, the same term Elastic-2.0 and RSALv2 need.
gap Rubric 8 dalicc:additionalClauses none

Section 7.2 lets the licensor change the agreement unilaterally, and the changed agreement then governs every version released after its posted date. No term can say that a licence's terms are settled by the publisher after the fact. Quoted. Proposed term: dalicc:unilateralAmendment, a boolean annotation.
info Rubric 9 record none

The consistency check of app.services.composer, run against licensedata/dependencygraph/dg_default.ttl, returned no conflicts. Permitting odrl:distribute while prohibiting dalicc:sellCopy raises nothing, because dalicc:sellCopy is not in the dependency graph, and the text does treat the two as different acts.
major Rubric 10 record none

Its nearest sibling is Confluent-Community-1.0, the other record in this set that is drafted as a signed agreement rather than as a short set of terms: both carry dalicc:governingLaw, both prohibit sublicensing, both bar a competing service and neither grants a patent licence. This record differs in carrying dalicc:governmentRightsLimitation and dalicc:sellCopy, in having no cure period, and in prohibiting rather than permitting dalicc:ChangeLicense, which the Confluent text expressly allows for a licensee's own modifications.

Report an issue The review record as JSON The review checks the model against the license text. It is not legal advice.

History

This license model has 2 versions. Version 2 is the one served today; every earlier version keeps its own address, so a conclusion drawn from one of them can still be checked against it.

Version 2 current2026-09-24 Giray Havur

The changes since version 1 recorded which sentence of the text each statement rests on, named the license the record itself is published under and removed the quotes that do not name the act they support.

View version 2 JSON-LD Turtle RDF/XML
9 changes
- changed permission odrl:derive with duties [cc:Notice, cc:ShareAlike]
  
  was permission odrl:derive with duties [cc:Notice, cc:ShareAlike]
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "You notify Your customers that use of such Timescale Software or Derivative Works is subject to this TSL Agreement and You provide to each such customer a copy of the most current version of this TSL Agreement or a URL from which the most current version of this TSL Agreement may be obtained"
- changed permission odrl:distribute with duties [cc:Notice, cc:ShareAlike]
  
  was permission odrl:distribute with duties [cc:Notice, cc:ShareAlike]
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "Conditioned upon compliance with all of the terms and conditions of this TSL Agreement, Timescale grants to You at no charge the following limited, non-exclusive, non-transferable, fully paid up, worldwide licenses, without the right to grant or authorize sublicenses (except as set forth in Section 2.3):"
- changed permission odrl:modify with duties [cc:Notice, cc:ShareAlike]
  
  was permission odrl:modify with duties [cc:Notice, cc:ShareAlike]
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "You notify Your customers that use of such Timescale Software or Derivative Works is subject to this TSL Agreement and You provide to each such customer a copy of the most current version of this TSL Agreement or a URL from which the most current version of this TSL Agreement may be obtained"
- changed prohibition dalicc:ChangeLicense
  
  was prohibition dalicc:ChangeLicense
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "Subject to the prohibitions in Section 2.2 below, a license to copy and distribute the Timescale Software source code and binaries solely in unmodified standalone form and subject to the terms and conditions of the most current version of this TSL Agreement."
- changed prohibition dalicc:sellCopy
  
  was prohibition dalicc:sellCopy
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "You agree not to ... transfer, sell, rent, lease, sublicense, loan, or otherwise transfer or make available any TSL Licensed Software, whether in source code or binary executable form"
- changed prohibition dalicc:sublicense
  
  was prohibition dalicc:sublicense
  
  Manual edit The statement now quotes the sentence of the licence text it rests on: "You agree not to ... transfer, sell, rent, lease, sublicense, loan, or otherwise transfer or make available any TSL Licensed Software, whether in source code or binary executable form"
- added dct:license <https://creativecommons.org/licenses/by/4.0/>
  
  Manual edit Every record is published under CC BY 4.0. cc:license names the record DALICC keeps of that licence; dct:license now names it by the address Creative Commons publishes it at, so that a consumer matching the canonical IRI finds it.
- changed permission odrl:modify with duties [cc:Notice, cc:ShareAlike]
  
  was permission odrl:modify with duties [cc:Notice, cc:ShareAlike]
  
  Manual edit Removed the quoted evidence of permission odrl:modify, prohibition dalicc:ChangeLicense: the quoted sentence does not name the act. The statements stay, read from the text without a linked quote.
- changed prohibition dalicc:ChangeLicense
  
  was prohibition dalicc:ChangeLicense
  
  Manual edit Removed the quoted evidence of permission odrl:modify, prohibition dalicc:ChangeLicense: the quoted sentence does not name the act. The statements stay, read from the text without a linked quote.
Version 1

Created from the license text on 2026-09-22 (Source-available licences and riders).

View version 1 JSON-LD Turtle RDF/XML

Every change names the reason behind it: a finding of the content review, one of its library-wide decisions, the metadata that review wrote onto every record, or a hand edit. None of it is legal advice.

Nothing on this page is legal advice. What a license means is decided by its text; ask a legal advisor before you rely on it.