Review TDVT results differences between JDBC & ODBC connectors

[hab6]

Testing of JDBC and ODBC tacos built with recent changes to the connector code produces results that are very close, although not identical, between the two tacos.

Connector	Passed	Failed	Total Tests	Total Time
JDBC	819	46	865	50.13s
ODBC	823	42	865	25.78s

We need to investigate and compare the results, ensuring at a minimum that all of the tests passing for the ODBC connector are also passing for the JDBC connector.

1. error/pass counts - priority get ensure all passing ODBC tests also pass for JDBC
2. performance - potentially a new/separate issue - may need to pull in additional team members once we have a handle on this.

[clach04]

@hab6 I've opened #27 which maybe relevant, specifically the "Changes / TODO notes that need follow up" section.

[clach04]

Those timings are a concern, 🐢 100% slower 😱

[hab6]

For a quick sanity check, I ran the TDVT suite a few times with the JDBC and ODBC connectors of release 1.0.2. The ODBC connector was more than twice as fast as the JDBC connector.

JDBC	ODBC
50.98s 49.47s 49.39s	24.78s 22.18s 21.39s
Avg 49.95	Avg 22.78

Investigating TDVT results with these priorities:

1. Error/pass counts
2. Performance

[hab6]

These are the 4 TDVT tests that fail when using the Actian JDBC connector and yet do NOT fail when using the Actian ODBC connector.

TestName	TestPath	Test Case
date.datename.sow.week	setup.date.datename.sow.week.txt	DATENAME('week', [date2], 'sunday')
date.datename.sow.week	setup.date.datename.sow.week.txt	DATENAME('week', [datetime0], 'sunday')
date.datename.week	setup.date.datename.week.txt	DATENAME('week', [date2])
date.datename.week	setup.date.datename.week.txt	DATENAME('week', [datetime0])

Test Set: expression.standard.mahds
TDSName: cast_calcs.mahds
GitHub Location of Failing Tests: https://github.com/tableau/connector-plugin-sdk/tree/master/tdvt/tdvt/exprtests/standard

[hab6]

Test Results with the latest TDVT suite

JDBC Connector v1.0.3(dev)

Target System	Passed (Rate)	Failed	Total Tests	Avg Time
Ingres 11.2 local Windows	823 (95%)	45	868	51s
Ingres 11.2 remote Ubuntu	820 (94%)	48	868	2m 35s
Vector 6.3 remote Ubuntu	831 (96%)	37	868	1m 25s

ODBC Connector v1.0.3(dev)

Target System	Passed (Rate)	Failed	Total Tests	Avg Time
Ingres 11.2 local Windows	823 (95%)	45	868	26s
Ingres 11.2 remote Ubuntu	818 (94%)	50	868	9m
Vector 6.3 remote Ubuntu	831 (96%)	37	868	4m