VidyaTrimbake commented on issue #756:
URL: 
https://github.com/apache/incubator-graphar/issues/756#issuecomment-3321423127

   I/O Layer
   
   1. readFile(fileUri, filters, projections, chunkIndex) – read data from a 
file.
   2. supportsPushdown() – check if filters/projections can be applied.
   
   High-Level Layer
   
   1. readFromFile(chunkIndex, propertyGroup, baseUri) – read a specific chunk.
   2. readAll(propertyGroup, baseUri) – read all data.
   
   Memory Layer
   
   1. getValue(columnIndex) – get value from a row.
   2. getSchema() – get column types.
   
   Future Optimization (placeholder)
   1. buildAST(query) – plan for query optimization.


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