feat: add support for utilising text indexes if exits for like operator in pinot based handlers

[kotharironak]

Description

This PR add support for utilising text indexes for LIKE operator for pinot based request handler if the index for those column is enabled. So, the string column with index will translated to

• text_match(column, /<value>/)

Testing

• Added the request conversation test.

Checklist:

• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• Any dependent changes have been merged and published in downstream modules

[codecov]

Codecov Report

Merging #186 (fe030cc) into main (a9aaeba) will increase coverage by 0.11%.
The diff coverage is 96.15%.

@@             Coverage Diff              @@
##               main     #186      +/-   ##
============================================
+ Coverage     78.68%   78.80%   +0.11%     
- Complexity      887      898      +11     
============================================
  Files            80       80              
  Lines          3626     3651      +25     
  Branches        413      419       +6     
============================================
+ Hits           2853     2877      +24     
  Misses          598      598              
- Partials        175      176       +1     

Flag	Coverage Δ
integration	78.80% <96.15%> (+0.11%)	⬆️
unit	73.63% <96.15%> (+0.15%)	⬆️

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

Impacted Files	Coverage Δ
...service/pinot/QueryRequestToPinotSQLConverter.java	91.72% <93.33%> (+0.05%)	⬆️
...race/core/query/service/pinot/PinotColumnSpec.java	100.00% <100.00%> (ø)
...trace/core/query/service/pinot/ViewDefinition.java	91.46% <100.00%> (+0.79%)	⬆️

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[kotharironak]

For TEXT_MATCH regex query needs string to be prefixed and suffixed with '/'.

• https://docs.pinot.apache.org/basics/indexing/text-search-support

[aaron-steinfeld]

nit: rather than taking multiple steps to calculate the RHS in the top level, could you do something like

          operator = handleLikeOperatorConversion(filter.getLhs());
          Expression rhs =
              handleValueConversionForLikeArgument(filter.getLhs(), filter.getRhs());

and then have handleValueConversionForLikeArgument do the delegation.

[kotharironak]

Done.

[aaron-steinfeld]

nit: this could be simplified a bit by just starting from the input.

Builder builder = rhsExpression.toBuilder()
 if (condition) {
   builder.getLiteralBuilder().getValueBuilder().setString(...);
 }
return builder.build();

[kotharironak]

Done.

[github-actions]

Unit Test Results

  39 files  ±0    39 suites  ±0   8s ⏱️ -4s
262 tests +2  262 ✔️ +2  0 💤 ±0  0 ❌ ±0 

Results for commit 6b3081e. ± Comparison against base commit a9aaeba.