[GitHub] [calcite] liyafan82 opened a new pull request #1562: [CALCITE-3480] Special treatment for unordered child policy when trying to match a rule

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liyafan82 opened a new pull request #1562: [CALCITE-3480] Special treatment for unordered child policy when trying to match a rule
URL: https://github.com/apache/calcite/pull/1562
 
 
   For scenarios when we need to concate vectors (like the scenario in ARROW-7048, and delta dictionary), we need a way to concat validity bits.
   
   Currently, we have bit level API to read/write individual validity bit. However, it is not efficient , and we need a way to copy more bits at a time.

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