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Fix CSV infinite loop and improve error messages #3470

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merged 2 commits into from
Jan 6, 2023

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tustvold
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@tustvold tustvold commented Jan 5, 2023

Which issue does this PR close?

Part of #3467
Closes #3469

Rationale for this change

See tickets

What changes are included in this PR?

Are there any user-facing changes?

@tustvold tustvold requested a review from andygrove January 5, 2023 22:18
@github-actions github-actions bot added the arrow Changes to the arrow crate label Jan 5, 2023
fn fill_buf(&mut self, to_read: usize) -> Result<(), ArrowError> {
/// Clears and then fills the buffers on this [`RecordReader`]
/// returning the number of records read
fn fill_buf(&mut self, to_read: usize) -> Result<usize, ArrowError> {
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I reworked this to return the quantity read as I thought this made for a slightly clearer API

Comment on lines 147 to 148
/// Skips forward `to_skip` rows
pub fn skip(&mut self, mut to_skip: usize) -> Result<(), ArrowError> {
pub fn skip(&mut self, to_skip: usize) -> Result<(), ArrowError> {
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Maybe we can document the error behavior.

@tustvold tustvold merged commit b39a20a into apache:master Jan 6, 2023
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ursabot commented Jan 6, 2023

Benchmark runs are scheduled for baseline = 39eeeaf and contender = b39a20a. b39a20a is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-thinkcentre-m75q] ursa-thinkcentre-m75q
Buildkite builds:
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java

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Infinite Loop If Skipping More CSV Lines than Present
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