influxdata / influxdata/influxdb-client-csharp

Influx Linq Provider seems not support string functions

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Dominant language
C#
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Description

I tried to filter the "_value" with contains but it did not work.

I'll take a look into this.

Et least I try to support:

ToLower
ToUpper
Contains
StartsWith
EndsWith

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the LINQ provider and its handling of string expressions. Reproduce the _value Contains case, then inspect how ToLower, ToUpper, StartsWith, and EndsWith are translated. Done means each listed function works in a filter and has coverage for its expected query behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
databases
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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