[CQF] Preserve the common projections from the both children of RIDUnionNode

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    • Query Optimization
    • Fully Compatible
    • QO 2023-07-10, QO 2023-07-24
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      In the reference_tracker.cpp, we keep only one projection which is the scanDef projection name. To support covered index scan plans, we need to preserve the projections that are common from the left child and right child of the RIDUnionNode. 

              Assignee:
              Chi-I Huang
              Reporter:
              Chi-I Huang
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