Aklakan commented on issue #3404:
URL: https://github.com/apache/jena/issues/3404#issuecomment-3236843453
It turns out that the NodeId for decimal "18" uses a different internal ID
than for "18.0".
On retrieval, TDB2 exposes `0x00000000000012` as `18.0` which however maps
to the internal id `0x010000000000B4`.
So the failure to roundtrip decimals seems to be a minor TDB2 issue after
all - decimals without comma should be exposed as such.
```java
System.out.println(NodeId.inline(NodeValue.makeDecimal("18").asNode())); //
0x00000000000012
System.out.println(NodeId.inline(NodeValue.makeDecimal("18.").asNode())); //
0x00000000000012
System.out.println(NodeId.inline(NodeValue.makeDecimal("18.0").asNode())); //
0x010000000000B4
System.out.println(NodeId.inline(NodeValue.makeDecimal("18.00").asNode())); //
0x02000000000708
```
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