alamb commented on issue #4901:
URL:
https://github.com/apache/arrow-datafusion/issues/4901#issuecomment-1383110313
I think this proposal (to have DDL / DML support in the engine) is very much
in the spirit of DataFusion as a library to build other databases on.
Specifically, the semantic analysis / basic plan support for these nodes is
non trivial (aka resolving references to columns, etc) and is not database
specific. The specific implementations of how to actually implement those
commands I think are almost certainly going to be system specific.
Ideally, I hope that DataFusion can have a clear separation between
1. "built in logical plan nodes that have good implementations" (e.g. the
query ones like TableSource, Filter, etc) and
2. "built in logical plan nodes that have either no or basic
implementations" (e.g. like create table, write rel, etc)
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