[jira] [Created] (ARROW-11342) [Python] [Gandiva] Expose ToString and result type information

["Will Jones (Jira)" <ji...@apache.org>]

Will Jones created ARROW-11342:
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             Summary: [Python] [Gandiva] Expose ToString and result type information
                 Key: ARROW-11342
                 URL: https://issues.apache.org/jira/browse/ARROW-11342
             Project: Apache Arrow
          Issue Type: Improvement
            Reporter: Will Jones
            Assignee: Will Jones


To make it easier to build and introspect the expression trees, I would like to expose the ToString() methods on Node, Expression, and Condition, as well as the methods exposing the fields and types inside.


{code:python}
import pyarrow as pa
import pyarrow.gandiva as gandiva
builder = gandiva.TreeExprBuilder()

print(builder.make_literal(1000.0, pa.float64()))
<pyarrow.gandiva.Node object at 0x7f36fd37ecf0>
{code}




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