[ARROW-5601] [gandiva] Error when projector with a string field

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.13.0
• Fix Version/s: 0.14.0
• Component/s: C++ - Gandiva
• Labels: pull-request-available
• Environment: Ubuntu 16.04 x86_64
• Flags: Important
• External issue URL: https://github.com/apache/arrow/issues/4544
• Assignee: Pindikura Ravindra
• Reporter: Sun Chenggen
• Created: 14/Jun/19 04:35
• Updated: 11/Jan/23 07:41
• Resolved: 14/Jun/19 14:11

Description

when I try to select a string field by gandiva projector, it failed with errors.

import pandas as pd
import pyarrow as pa
from pyarrow import gandiva

a = pd.DataFrame({'col1': ["asdf", "abc"]})
tb = pa.Table.from_pandas(a)
teb = gandiva.TreeExprBuilder()
col1 = tb.schema[0]
node1 = teb.make_field(col1)
exp1 = teb.make_expression(node1, col1)
gandiva.make_projector(tb.schema, [exp1], pa.default_memory_pool())

Run the code above, it crashs with error like this:

python: ../lib/IR/Instructions.cpp:1202: void llvm::StoreInst::AssertOK(): Assertion `getOperand(0)->getType() == cast<PointerType>(getOperand(1)->getType())->getElementType() && "Ptr must be a pointer to Val type!"' failed. Aborted

Issue Links

• links to: GitHub Pull Request #4569