Adjust RequestUtils#getTableNames to get table names from both left and right sides of join

[AlexanderKM]

Currently when using a join query, the RequestUtils#getTableNames method will only return the table name from the left side of the query. So in this example, even when we join table1 and table2, the output of table names is only <table1>.

SELECT 
  table1.foo,
  table2.bar 
FROM 
  table1 
JOIN table2 ON table1.id = table2.id 
LIMIT 10;

This PR fixes this to output both the correct table names <table1, table2>

#14555

[Jackie-Jiang]

Good catch!

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.94%. Comparing base (59551e4) to head (e95b6e0).
Report is 1398 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #14554      +/-   ##
============================================
+ Coverage     61.75%   63.94%   +2.18%     
- Complexity      207     1570    +1363     
============================================
  Files          2436     2681     +245     
  Lines        133233   147067   +13834     
  Branches      20636    22568    +1932     
============================================
+ Hits          82274    94035   +11761     
- Misses        44911    46102    +1191     
- Partials       6048     6930     +882     

Flag	Coverage Δ
custom-integration1	100.00% <ø> (+99.99%)	⬆️
integration	100.00% <ø> (+99.99%)	⬆️
integration1	100.00% <ø> (+99.99%)	⬆️
integration2	0.00% <ø> (ø)
java-11	63.88% <100.00%> (+2.17%)	⬆️
java-21	63.83% <100.00%> (+2.20%)	⬆️
skip-bytebuffers-false	63.93% <100.00%> (+2.18%)	⬆️
skip-bytebuffers-true	63.79% <100.00%> (+36.06%)	⬆️
temurin	63.94% <100.00%> (+2.18%)	⬆️
unittests	63.93% <100.00%> (+2.18%)	⬆️
unittests1	55.66% <100.00%> (+8.77%)	⬆️
unittests2	34.54% <0.00%> (+6.81%)	⬆️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.