Support for DATETIME columns in DBRunner

[k2tzumi]

fix #124

Reason for concern

• Isn't the DATETIME format different for different types of databases?
  Can you identify the format from the DB connection driver?
  No generic DateTime formatting library exists?
• What time zone should the date be in?
• How to implement the verification code?
• Support other formats besides DATETIME?
  The following types exist, but they are all treated as numbers
  DECIMAL, BOOL, INT, BIGINT

[k1LoW]

LGTM! Thank you!

I understand your concern.
The handling of return values will need to be improved in the future.

[k2tzumi]

I tried running it locally and got an error.
It seems that the layout is not well specified.

invalid datetime column: evaluated created_at, but got DATETIME(2022-09-01 19:07:30): parsing time "2016-01-02 15:04:05" as "2022-09-01 19:07:30": cannot parse "-01-02 15:04:05" as "2"

[github-actions]

Code Metrics Report

	main (32037d6)	#129 (1454eb7)	+/-
Coverage	73.5%	73.4%	-0.1%
Code to Test Ratio	1:0.7	1:0.7	-0.0
Test Execution Time	40s	45s	+5s

Details

  |                     | main (32037d6) | #129 (1454eb7) |  +/-  |
  |---------------------|----------------|----------------|-------|
- | Coverage            |          73.5% |          73.4% | -0.1% |
  |   Files             |             18 |             18 |     0 |
  |   Lines             |           2000 |           2004 |    +4 |
  |   Covered           |           1470 |           1470 |     0 |
- | Code to Test Ratio  |          1:0.7 |          1:0.7 |  -0.0 |
  |   Code              |           3871 |           3879 |    +8 |
  |   Test              |           2792 |           2792 |     0 |
- | Test Execution Time |            40s |            45s |   +5s |

Code coverage of files in pull request scope (63.0% → 60.6%)

Files	Coverage	+/-
db.go	60.6%	-2.4%

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Reported by octocov

[k2tzumi]

The specified argument was incorrect. 🤮