[CALCITE-3094]: Code of method grows beyond 64 KB when joining two tables with many fields

[jduo]

Fix errors about the code size being too large for a method when joining thousands of fields.

[jduo]

Is this now working end-to-end?

This is working end-to-end. I've also beefed up the supplied test to validate the data from the join result.

[sonarqubecloud[bot]]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
77.2% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[rubenada]

@mihaibudiu (or the others), is there any further comment? I think it looks in a good shape for merge (after squashing commits into a single one)

[mihaibudiu]

I have no other comments.