andygrove opened a new issue, #2631:
URL: https://github.com/apache/datafusion-comet/issues/2631
### Describe the bug
I found this issue during fuzz testing:
```sql
SELECT str, lpad(str, len % 10, 'x') FROM t1 ORDER BY str
```
Test data:
```scala
val schema = StructType(
Seq(
StructField("str", DataTypes.StringType, true),
StructField("len", DataTypes.IntegerType, true),
StructField("pad", DataTypes.StringType, true)))
val df = FuzzDataGenerator.generateDataFrame(r, spark, schema, 100,
DataGenOptions())
df.createOrReplaceTempView("t1")
```
Causes:
```
Job aborted due to stage failure: Task 3 in stage 28.0 failed 1 times, most
recent failure: Lost task 3.0 in stage 28.0 (TID 80) (woody.lan executor
driver): org.apache.comet.CometNativeException: capacity overflow
at comet::errors::init::{{closure}}(./native/core/src/errors.rs:151)
at <alloc::boxed::Box<F,A> as
core::ops::function::Fn<Args>>::call(/rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985)
at
std::panicking::rust_panic_with_hook(/rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:841)
at
std::panicking::begin_panic_handler::{{closure}}(/rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:699)
at
std::sys::backtrace::__rust_end_short_backtrace(/rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174)
at
__rustc::rust_begin_unwind(/rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697)
at
core::panicking::panic_fmt(/rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75)
at
alloc::raw_vec::capacity_overflow(/rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/raw_vec/mod.rs:29)
at
alloc::raw_vec::handle_error(/rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/raw_vec/mod.rs:797)
at
alloc::raw_vec::RawVecInner<A>::reserve::do_reserve_and_handle(/home/andy/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/raw_vec/mod.rs:558)
at
alloc::raw_vec::RawVecInner<A>::reserve(/home/andy/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/raw_vec/mod.rs:563)
at
alloc::raw_vec::RawVec<T,A>::reserve(/home/andy/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/raw_vec/mod.rs:331)
at
alloc::vec::Vec<T,A>::reserve(/home/andy/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/vec/mod.rs:1339)
at
alloc::string::String::reserve(/home/andy/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/string.rs:1214)
at <alloc::string::String as
core::iter::traits::collect::Extend<char>>::extend(/home/andy/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/string.rs:2406)
at <alloc::string::String as
core::iter::traits::collect::FromIterator<char>>::from_iter(/home/andy/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/string.rs:2326)
at
core::iter::traits::iterator::Iterator::collect(/home/andy/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/iter/traits/iterator.rs:2027)
at
datafusion_comet_spark_expr::static_invoke::char_varchar_utils::read_side_padding::add_padding_string(./native/spark-expr/src/static_invoke/char_varchar_utils/read_side_padding.rs:275)
```
### Steps to reproduce
_No response_
### Expected behavior
_No response_
### Additional context
_No response_
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