Add Functional Tests and Fix Bugs #7459

Job	Run time
Pre-build for cache	2m 44s
Set up single test	16s
Misc checks	5m 50s
Integration test	6m 58s
Functional test ndc (cass_es)	1m 57s
Functional test (ubuntu-20.04, 0, cass_es)	12m 50s
Functional test ndc (cass_es8)	1m 56s
Functional test xdc (cass_es)	6m 59s
Unit test	5m 17s
Functional test (ubuntu-20.04, 0, cass_es8)	12m 50s
Functional test ndc (mysql8)	1m 35s
Functional test xdc (cass_es8)	7m 10s
Functional test ndc (postgres12)	1m 30s
Functional test (ubuntu-20.04, 0, sqlite)	9m 48s
Functional test xdc (mysql8)	7m 25s
Functional test ndc (postgres12_pgx)	1m 28s
Functional test (ubuntu-20.04, 0, mysql8)	11m 17s
Functional test xdc (postgres12)	20m 59s
Functional test (ubuntu-20.04, 0, postgres12)	20m 59s
Functional test xdc (postgres12_pgx)	6m 30s
Functional test (ubuntu-20.04, 0, postgres12_pgx)	10m 50s
Functional test (ubuntu-20.04, 1, cass_es)	9m 12s
Functional test (ubuntu-20.04, 1, cass_es8)	10m 11s
Functional test (ubuntu-20.04, 1, sqlite)	7m 51s
Functional test (ubuntu-20.04, 1, mysql8)	8m 7s
Functional test (ubuntu-20.04, 1, postgres12)	8m 22s
Functional test (ubuntu-20.04, 1, postgres12_pgx)	8m 32s
Functional test (ubuntu-20.04, 2, cass_es)	11m 19s
Functional test (ubuntu-20.04, 2, cass_es8)	11m 21s
Functional test (ubuntu-20.04, 2, sqlite)	10m 12s
Functional test (ubuntu-20.04, 2, mysql8)	10m 10s
Functional test (ubuntu-20.04, 2, postgres12)	10m 6s
Functional test (ubuntu-20.04, 2, postgres12_pgx)	8m 48s
Test Status	1s
	4h 31m 20s

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