SQL retry on query plan failure, use INNER JOIN instead of EXISTS

[feordin]

At times with complex FHIR queries, the resulting SQL query is very complex and SQL server can timeout attempting to generate the query plan. We use an EXISTS clause to link References to the target type, but it reduces the burden on SQL server if we use an INNER JOIN.

This change alters the SQL query generator to use an INNER JOIN for ReferenceSearchParams.

Related issues

Addresses [issue AB#95713].

Testing

Manual testing with include .http file. Also added automated testing via member match.

FHIR Team Checklist

• Update the title of the PR to be succinct and less than 65 characters
• Add a milestone to the PR for the sprint that it is merged (i.e. add S47)
• Tag the PR with the type of update: Bug, Build, Dependencies, Enhancement, New-Feature or Documentation
• Tag the PR with Open source, Azure API for FHIR (CosmosDB or common code) or Azure Healthcare APIs (SQL or common code) to specify where this change is intended to be released.
• CI is green before merge
• Review squash-merge requirements

Semver Change (docs)

Patch|Skip|Feature|Breaking (reason)