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We are trying to convert a SQLite database (the chinook.db example) but r2rml is having trouble finding the driver
```
2018-12-06 15:16:46 ERROR R2RMLProcessor:98 - Error connecting to database.
…
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### Description
May be similar to #395 (Ontop bootstrap generate mapping without primary keys).
I have a database that has Tables/Views without a primary key. [MySQL CREATE TABLE](#MySQL+CREATE+T…
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This issue is about http://rml.io/spec.html but I couldn't find a repo for that spec. If this is the wrong repo for this issue, please let me know and I'll move it.
There is no standard way to take…
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**Description:**
In R2RML, we are providing the SQL queries to access nested data. We are trying to access the nested data via **element_at**, **json_value** functions
We are experiencing slowness o…
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I was contacted by the chairs of the [Knowledge Graph Construction CG](https://www.w3.org/community/kg-construct/), who would like to create a Working Group. The WG is producing a set of specification…
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When there is NaN information in the age column, stored as string in postgres. The R2RML conversiont tool breaks on these values, and discards all subsequent rows. This results in a list of missing pa…
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Hi, which tool do you use to generate the RDF graph from the source data ?
For instance, I am trying to generate a graph from the source file `museum-29-edm/sources/s01-cb.csv` and its R2RML model `m…
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Hi,
When running with default.incremental set to true in the r2rml.properties file, a NullPointerException is thrown:
```
Transforming the data... Run with -h for help on options.
Exception in…
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Hi,
Im trying to use r2rml, but when i execute the command mvn package i got this, could you help me please.
thank you.
![build failure](https://cloud.githubusercontent.com/assets/26581537/25507357…
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Hello nkons,
I have a question about LinkedList in
https://github.com/nkons/r2rml-parser/blob/70257775a56f337530cbc508f7fca2d6a75dc620/src/main/java/gr/seab/r2rml/beans/Parser.java#L117-L132
If th…