Giorgi / DuckDB.NET / 42177187567

94%

Build Type

push

github

Committed by Giorgi

Commit Message

Build a wide DECIMAL that fits a decimal from its digits and scale

A DECIMAL of more than 18 digits, stored as a HUGEINT, was divided on every
read. A value that fits the 96 bits of a decimal, with a scale of at most 28,
is now built from its digits and the scale like the narrower sizes, so it
keeps the scale of its column: 1.5000 from a DECIMAL(38,4), where it was 1.5.
GetDecimal hands a HUGEINT to GetWideDecimal so its own frame stays as it
was, and the division moves to DivideWideDecimal for the rest.

Linux VM, .NET 10, against the build before: DECIMAL(38,4) reads 0.20,
DECIMAL(18,4) 0.95 (unchanged code), HUGEINT as long 1.01.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01F9b3CGWkCMzmhoxge1QiZ8

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2773 of 3009 branches covered (92.16%)

Branch coverage included in aggregate %.

4 of 4 new or added lines in 1 file covered. (100.0%)

16 existing lines in 8 files now uncovered.

4335 of 4582 relevant lines covered (94.61%)

1056194.66 hits per line