Query: Refactors Optimistic Direct Execution to be turned on by default on .NET SDK

[akotalwar]

Pull Request Template

Description

Refactors Optimistic Direct Execution to be turned on by default on .NET SDK. With this change, all single partition queries will use the Optimistic Direct Execution pipeline unless specified otherwise.

Nature of the breaking change:
This change makes uses of a new type of continuation token in the SDK that not all previous version of SDK support.
As a result, when a query invoked using newer SDK version (containing this change) is invoked, the continuation token produced may not be accepted by the previous version of SDK for query continuation purposes.

Type of change

Please delete options that are not relevant.

• [] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Closing issues

To automatically close an issue: closes #IssueNumber

[adityasa]

I think we should maximize the "default" behavior testing. I would be tempted to reduce the number of tests that switch off ODE explicitly in this change.
#Resolved

[neildsh]

                queryDoc.First<Document>();

Please assert that the correct document is returned... the return value is just being thrown away here #Resolved

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Refers to: Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/CosmosMultiHashTest.cs:474 in ab69838. [](commit_id = ab69838, deletion_comment = False)

[neildsh]

This would result in loss of coverage for the regular pipelines. Perhaps it would be preferable to run the tests with ODE enabled as well as disabled?

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In reply to: 1880222410

[adityasa]

[adityasa]