Peter Murphy created ARROW-9496:
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Summary: toArray() called on filtered Table returns all rows
Key: ARROW-9496
URL: https://issues.apache.org/jira/browse/ARROW-9496
Project: Apache Arrow
Issue Type: Bug
Components: JavaScript
Environment: OSX 10.15.2
Behavior seen in runkit and node.js Jest test runner
Reporter: Peter Murphy
Trying to experiment with building a library on top of Apache Arrow's
Javascript implementation, but ran into this:
Example:
[https://runkit.com/pjm17971/pond-arrow]
{code:java}
const filtered = table.filter(predicate.col("pressure").lt(28.5))
filtered.count() // 2 (correct)
{code}
However:
{code:java}
const result = filtered.toArray().map(row => row.toJSON()) // 4 rows (??){code}
Is this expected behavior?
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