Skip to content

Prefetch Row Groups using next_reader API in parquet-rs #18391

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
alamb wants to merge 3 commits into
base: main
Choose a base branch
from
+568 −16
Draft

Prefetch Row Groups using next_reader API in parquet-rs #18391

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
e4f3634
Prefetching Row Groups using next_reader API in parquet-rs
alamb Oct 30, 2025
01d01fb
clieanup
alamb Nov 21, 2025
3a81112
Cleanups
alamb Dec 1, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Prev Previous commit
Next Next commit
clieanup
  • Loading branch information
@alamb
alamb committed Nov 21, 2025
commit 01d01fb57f9fe60b3e70e0aa632717b4ab74ffb0
2 changes: 1 addition & 1 deletion datafusion/datasource-parquet/src/opener.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -115,7 +115,7 @@ pub(super) struct ParquetOpener {
/// Maximum size of the predicate cache, in bytes. If none, uses
/// the arrow-rs default.
pub max_predicate_cache_size: Option<usize>,
/// Number of row groups to prefetch while scanning parquet files
/// Number of row groups to prefetch
pub prefetch_row_groups: usize,
}

Expand Down
2 changes: 1 addition & 1 deletion datafusion/datasource-parquet/src/source.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -445,7 +445,7 @@ impl ParquetSource {
self.table_parquet_options.global.max_predicate_cache_size
}

/// Number of row groups to prefetch while scanning parquet files
/// Number of row groups to prefetch
pub fn prefetch_row_groups(&self) -> usize {
self.table_parquet_options.global.prefetch_row_groups
}
Expand Down
Loading