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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/11/01 19:47:24 UTC
[GitHub] [arrow-datafusion] alamb opened a new issue, #4066: Support serializing more deeply nested expressions
alamb opened a new issue, #4066:
URL: https://github.com/apache/arrow-datafusion/issues/4066
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
There are certain expressions that are "too complex" to serialize. After @crepererum 's fix in https://github.com/apache/arrow-datafusion/issues/3968 they at least produce a proper error
It would be nice to at least support deeply nested AND expression trees which are common in certain machine generated queries
**Describe the solution you'd like**
Ideally we would follow @andygrove 's suggestion (which I remember seeing but can't find) and rather than serializing an expression like
```text
((A AND B) AND C) AND D ...
```
into a tree that matches the `Expr` structure, instead into a structure like
```
AndExpr(Vec<Expr>)
```
**Describe alternatives you've considered**
N/a
**Additional context**
See https://github.com/apache/arrow-datafusion/issues/3968 and https://github.com/influxdata/influxdb_iox/pull/6020
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[GitHub] [arrow-datafusion] alamb closed issue #4066: Support serializing more deeply nested AND / OR expressions
Posted by GitBox <gi...@apache.org>.
alamb closed issue #4066: Support serializing more deeply nested AND / OR expressions
URL: https://github.com/apache/arrow-datafusion/issues/4066
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[GitHub] [arrow-datafusion] andygrove commented on issue #4066: Support serializing more deeply nested AND / OR expressions
Posted by GitBox <gi...@apache.org>.
andygrove commented on issue #4066:
URL: https://github.com/apache/arrow-datafusion/issues/4066#issuecomment-1304833600
> Ideally we would follow @andygrove 's suggestion (which I remember seeing but can't find)
Here it is: https://github.com/apache/arrow-datafusion/issues/1434#issuecomment-1296307178
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