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Use DuckDB C API in query evaluator#1

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StefansM wants to merge 5 commits into
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codex/modify-query_evaluator.cpp-to-use-duckdb-c-api
Draft

Use DuckDB C API in query evaluator#1
StefansM wants to merge 5 commits into
masterfrom
codex/modify-query_evaluator.cpp-to-use-duckdb-c-api

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@StefansM

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Summary

  • replace the DuckDB C++ interface in query_evaluator.cpp with RAII wrappers around the C API
  • bind query parameters and execute prepared statements through the C API while converting result chunks to Arrow batches
  • update schema discovery to issue DESCRIBE queries through the C API

Testing

  • meson setup build (fails: Dependency "jsoncpp" not found)

https://chatgpt.com/codex/tasks/task_e_68ef8332f2d883309754698f0f0eff14

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