kou opened a new issue, #177:
URL: https://github.com/apache/arrow-flight-sql-postgresql/issues/177
It's slower than the PostgreSQL protocol.
The followings may be related but we need to look into it:
* Building `arrow::RecordBatch` is slow?
* We need to build `arrow::RecordBatch`es to use
`arrow::ipc::RecordBatchWriter()`. We need to copy PostgreSQL data for it. (Not
zero-copy.)
* Should we add an API that writes Apache Arrow streaming format data
without building `arrow::RecordBatch` to Apache Arrow C++?
* Calling `SPI_getbinval()` is slow?
* It calls `nocachegetattr()`
https://github.com/postgres/postgres/blob/3edc6580c0e27fb8f13322efd255a88d20dda6c2/src/backend/access/common/heaptuple.c#L496-L712
and it's not a short function. Can we shortcut some operations?
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