Commits on Mar 20, 2024

1. [Fix](variant) filter with variant access may lead to to parition/tab… …

   …let prune fall through
   
   Query like `select * from ut_p partitions(p2) where cast(var['a'] as int)  > 0` will fall through parition/tablet prunning since it's plan like
   ```
   mysql> explain analyzed plan select * from ut_p where id = 3 and cast(var['a'] as int) = 789;
   +----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | Explain String(Nereids Planner)                                                                                                                                            |
   +----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | LogicalResultSink[26] ( outputExprs=[id#0, var#1] )                                                                                                                        |
   | +--LogicalProject[25] ( distinct=false, projects=[id#0, var#1], excepts=[] )                                                                                               |
   |    +--LogicalFilter[24] ( predicates=((cast(var#4 as INT) = 789) AND (id#0 = 3)) )                                                                                         |
   |       +--LogicalFilter[23] ( predicates=(0 = __DORIS_DELETE_SIGN__#2) )                                                                                                    |
   |          +--LogicalProject[22] ( distinct=false, projects=[id#0, var#1, __DORIS_DELETE_SIGN__#2, __DORIS_VERSION_COL__#3, element_at(var#1, 'a') AS `var`apache#4], excepts=[] ) |
   |             +--LogicalOlapScan ( qualified=regression_test_variant_p0.ut_p, indexName=<index_not_selected>, selectedIndexId=10145, preAgg=ON )                             |
   +----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   6 rows in set (0.01 sec)
   ```
   with an extra LogicalProject on top of LogicalOlapScan, so we should handle such case to prune parition/tablet

   

   eldenmoon committed Mar 20, 2024
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