HPCC-35541 Fix FILEPOSITION(TRUE) when the last field is a string

[ghalliday]

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Testing:

[ghalliday]

Note: Tests are part of a different PR - #20772

[github-actions]

Jira Issue: https://hpccsystems.atlassian.net//browse/HPCC-35541

Jirabot Action Result:
Assigning user: gavin.halliday@lexisnexisrisk.com
Workflow Transition To: Merge Pending
Updated PR

[Copilot]

Pull request overview

This PR fixes a bug in the handling of FILEPOSITION(TRUE) when the last field of an index record is a string (non-integer type). The issue occurred when the system needed to convert FILEPOSITION(TRUE) to FILEPOSITION(FALSE) but failed to remove the existing attribute before adding the new one, resulting in conflicting attribute values.

Key Changes:

• Modified the checkIndexRecord function to properly replace the FILEPOSITION attribute instead of appending a duplicate
• Changed from directly appending FILEPOSITION(false) to: unwinding the attribute list, removing any existing fileposition attributes, then adding the new FILEPOSITION(false) attribute

[dcamper]

Looks good.

[github-actions]

Jirabot Action Result:
Added fix version: 9.14.48
Added fix version: 10.0.22
Workflow Transition: 'Resolve issue'