v9.2 fixes

[MarkMpn]

New SQL support

• Added support for querying entity key metadata via metadata.alternate_key table - 【Request】EntityKeyMetadata #409
• Initial EXCEPT/INTERSECT implementation - [Feature Request] : except and intersect keyword #427

Copilot

• Improved Copilot resiliency
• Show feedback when Copilot attempts to execute an invalid query
• Require more explicit permission to run queries from Copilot

Type conversions

• Fixed converting datetime to number types
• Decimal type conversion fixes
• Improved reporting of arithmetic overflow errors - highlight the source of the conversion rather than the type definition
• Extended type checking for join comparisons - Cross Environment Join: Null Reference Exception #520
• Do not require explicit conversion for different decimal types - Operand type clash: decimal is incompatible with decimal #527

Performance improvements

• Inject dynamic filter values into FetchXML via nested loop

FetchXML compatibility fixes

• Do not fold DISTINCT to queries including audit.objectid - Audit Table Query Error: Expected value between 1 and 1 inclusive. #519
• Fixed use of DISTINCT with partylist attributes - Error on Distinct #528
• Do not apply eq-userid condition to non-lookup fields
• Improved moving filters to correct link-entity
• Improved folding of sorts to aggregate FetchXML
• Hide virtual attributes from solutioncomponent entity - [Bug](v9.2.0) Cannot use DBNull.Value on column 'solutionidname' #524
• Standardised use of aliases in query-defined tables - [Bug](v9.2.0) System.ArgumentException: *** is not a unique alias #522, [Bug](v9.2.0) Column values ​​that are actually not NULL are displayed as NULL #523
• Fixed use of IS DISTINCT FROM with cross-column comparisons

User experience

• Re-added environment highlight label lost during previous merge
• Expose multiple errors in the same exception
• Fixed re-inserting comments after formatting when using escaped identifiers - [Bug](v9.2.0) Incorrect formatting for code with comments out #525
• Highlight errors where the fragment was not in the original text

Internal refactoring

• Do not attempt to validate data types of variable filters
• Standardised checking for virtual attributes