Add TIMESTAMP to datetime column Type

[shahsank3t]

Description

This PR fixes #7745

[codecov-commenter]

Codecov Report

Merging #7746 (141f627) into master (af01aa5) will decrease coverage by 49.68%.
The diff coverage is n/a.

❗ Current head 141f627 differs from pull request most recent head 4597b27. Consider uploading reports for the commit 4597b27 to get more accurate results

@@              Coverage Diff              @@
##             master    #7746       +/-   ##
=============================================
- Coverage     64.23%   14.54%   -49.69%     
+ Complexity     3985       80     -3905     
=============================================
  Files          1568     1531       -37     
  Lines         80194    78675     -1519     
  Branches      11929    11765      -164     
=============================================
- Hits          51510    11444    -40066     
- Misses        25022    66395    +41373     
+ Partials       3662      836     -2826     

Flag	Coverage Δ
integration1	?
integration2	?
unittests1	?
unittests2	14.54% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ain/java/org/apache/pinot/core/data/table/Key.java	0.00% <0.00%> (-100.00%)	⬇️
.../java/org/apache/pinot/spi/utils/BooleanUtils.java	0.00% <0.00%> (-100.00%)	⬇️
.../java/org/apache/pinot/core/data/table/Record.java	0.00% <0.00%> (-100.00%)	⬇️
.../java/org/apache/pinot/core/util/GroupByUtils.java	0.00% <0.00%> (-100.00%)	⬇️
...ava/org/apache/pinot/spi/data/MetricFieldSpec.java	0.00% <0.00%> (-100.00%)	⬇️
...va/org/apache/pinot/spi/utils/BigDecimalUtils.java	0.00% <0.00%> (-100.00%)	⬇️
...java/org/apache/pinot/common/tier/TierFactory.java	0.00% <0.00%> (-100.00%)	⬇️
...java/org/apache/pinot/common/utils/StringUtil.java	0.00% <0.00%> (-100.00%)	⬇️
...va/org/apache/pinot/core/data/table/BaseTable.java	0.00% <0.00%> (-100.00%)	⬇️
...a/org/apache/pinot/spi/config/table/TableType.java	0.00% <0.00%> (-100.00%)	⬇️
... and 1403 more

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[Jackie-Jiang]

LGTM, thanks!