PostgreSQL License
E427686
The PostgreSQL License is a permissive, BSD-style open-source software license used by the PostgreSQL project and related components, allowing broad use, modification, and distribution with minimal restrictions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| PostgreSQL License canonical | 1 |
| PostgreSQL license | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4279282 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: PostgreSQL License Context triple: [PL/Python, license, PostgreSQL License]
-
A.
PostgreSQL
PostgreSQL is a powerful open-source relational database management system known for its robustness, extensibility, and strong standards compliance.
-
B.
GNU Affero General Public License
The GNU Affero General Public License is a copyleft free software license designed to ensure that users of software provided over a network receive access to its source code and the same freedoms to use, modify, and share it.
-
C.
Oracle Binary Code License
The Oracle Binary Code License is a proprietary software license from Oracle Corporation that governs the use and distribution of certain Oracle-provided Java SE binaries and related components.
-
D.
Python Software Foundation License
The Python Software Foundation License is a permissive open-source software license that governs the distribution and use of the Python programming language and related software.
-
E.
BSD license
The BSD license is a family of permissive free software licenses that allow redistribution and use with minimal restrictions, including in proprietary software.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: PostgreSQL License Target entity description: The PostgreSQL License is a permissive, BSD-style open-source software license used by the PostgreSQL project and related components, allowing broad use, modification, and distribution with minimal restrictions.
-
A.
PostgreSQL
PostgreSQL is a powerful open-source relational database management system known for its robustness, extensibility, and strong standards compliance.
-
B.
GNU Affero General Public License
The GNU Affero General Public License is a copyleft free software license designed to ensure that users of software provided over a network receive access to its source code and the same freedoms to use, modify, and share it.
-
C.
Oracle Binary Code License
The Oracle Binary Code License is a proprietary software license from Oracle Corporation that governs the use and distribution of certain Oracle-provided Java SE binaries and related components.
-
D.
Python Software Foundation License
The Python Software Foundation License is a permissive open-source software license that governs the distribution and use of the Python programming language and related software.
-
E.
BSD license
The BSD license is a family of permissive free software licenses that allow redistribution and use with minimal restrictions, including in proprietary software.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
BSD-style license
ⓘ
free and open-source software license ⓘ permissive license ⓘ software license ⓘ |
| allowsCommercialUse | yes ⓘ |
| allowsPatentUse | implicitly, no explicit patent grant ⓘ |
| allowsProprietaryForks | yes ⓘ |
| allowsSublicensing | yes ⓘ |
| appliesTo |
binary distributions
ⓘ
source code ⓘ |
| approvedBy |
Free Software Foundation
ⓘ
Open Source Initiative ⓘ |
| category | permissive FOSS license ⓘ |
| classifiedByFSFAs |
GPL-compatible free software license
ⓘ
free software license ⓘ |
| copyleftStrength | none ⓘ |
| governs |
PostgreSQL core server code
ⓘ
linked to:
PostgreSQL
many PostgreSQL contributed modules ⓘ |
| hasClause |
disclaimer of warranty
ⓘ
limitation of liability ⓘ |
| hasIndemnity | no explicit indemnity ⓘ |
| hasPermission |
distribute copies
ⓘ
distribute modified versions ⓘ modify the software ⓘ use for any purpose ⓘ use in proprietary software ⓘ |
| hasRestriction |
must retain attribution in binary distributions where applicable
ⓘ
must retain copyright notice ⓘ must retain license text in source distributions ⓘ |
| hasWarranty | no, provided "as is" ⓘ |
| isCopyleft | no ⓘ |
| isGPLCompatible | yes ⓘ |
| isOSIApproved | yes ⓘ |
| isViral | no ⓘ |
| jurisdiction | worldwide ⓘ |
| maintainedBy | PostgreSQL Global Development Group ⓘ |
| requiresAttribution | yes ⓘ |
| requiresSameLicenseOnDerivatives | no ⓘ |
| requiresSourceDisclosure | no ⓘ |
| similarTo |
2-clause BSD License
ⓘ
linked to:
BSD license
3-clause BSD License ⓘ
linked to:
BSD license
MIT License ⓘ |
| textBeginsWith | "Permission to use, copy, modify, and distribute this software and its documentation for any purpose, without fee, and without a written agreement is hereby granted" ⓘ |
| usedBy |
PostgreSQL Global Development Group
ⓘ
PostgreSQL database management system ⓘ PostgreSQL project ⓘ
linked to:
PostgreSQL
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: PostgreSQL License Description of subject: The PostgreSQL License is a permissive, BSD-style open-source software license used by the PostgreSQL project and related components, allowing broad use, modification, and distribution with minimal restrictions.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.