deltalake-core 0.32.0

Native Delta Lake implementation in Rust
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130

Script started on 2026-04-08 18:00:53+00:00 [COMMAND="cargo build --features datafusion" TERM="tmux-256color" TTY="/dev/pts/22" COLUMNS="192" LINES="47"]
    Blocking waiting for file lock on build directory
   Compiling deltalake-core v0.32.0 (/home/tyler/source/github/delta-io/delta-rs/crates/core)
    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: unused import: `delta_kernel::engine::arrow_conversion::TryIntoArrow as _`
 --> crates/core/src/kernel/snapshot/serde.rs:8:5
  |
8 | use delta_kernel::engine::arrow_conversion::TryIntoArrow as _;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: unused import: `DefaultEngine`
  --> crates/core/src/logstore/mod.rs:59:37
   |
59 | use delta_kernel::engine::default::{DefaultEngine, DefaultEngineBuilder};
   |                                     ^^^^^^^^^^^^^

warning: unused import: `delta_kernel::FileMeta`
 --> crates/core/src/protocol/checkpoints.rs:8:5
  |
8 | use delta_kernel::FileMeta;
  |     ^^^^^^^^^^^^^^^^^^^^^^

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: unused variable: `target_file_size`
   --> crates/core/src/operations/write/execution.rs:563:5
    |
563 |     target_file_size: Option<NonZeroU64>,
    |     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_file_size`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: unused variable: `partition_columns`
  --> crates/core/src/kernel/arrow/engine_ext.rs:72:13
   |
72 |         let partition_columns = self.metadata().partition_columns();
   |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partition_columns`

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: unused variable: `column_mapping_mode`
  --> crates/core/src/kernel/arrow/engine_ext.rs:73:13
   |
73 |         let column_mapping_mode = self.column_mapping_mode();
   |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_column_mapping_mode`

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: associated function `try_new` is never used
  --> crates/core/src/delta_datafusion/data_validation.rs:78:19
   |
77 | impl DataValidation {
   | ------------------- associated function in this implementation
78 |     pub(crate) fn try_new(
   |                   ^^^^^^^
   |
   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: struct `NotNullExtractor` is never constructed
   --> crates/core/src/delta_datafusion/data_validation.rs:119:8
    |
119 | struct NotNullExtractor {
    |        ^^^^^^^^^^^^^^^^

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: function `make_fields_non_nullable` is never used
   --> crates/core/src/delta_datafusion/data_validation.rs:724:15
    |
724 | pub(crate) fn make_fields_non_nullable(schema: &Schema, paths: &[ColumnName]) -> Schema {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: function `make_fields_non_nullable_recursive` is never used
   --> crates/core/src/delta_datafusion/data_validation.rs:745:4
    |
745 | fn make_fields_non_nullable_recursive(
    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: method `validate` is never used
  --> crates/core/src/delta_datafusion/logical.rs:20:8
   |
16 | pub(crate) trait LogicalPlanBuilderExt: Sized {
   |                  --------------------- method in this trait
...
20 |     fn validate(self, validations: impl IntoIterator<Item = Expr>) -> Result<Self>;
   |        ^^^^^^^^

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: method `with_file_selection` is never used
   --> crates/core/src/delta_datafusion/table_provider.rs:689:19
    |
616 | impl TableProviderBuilder {
    | ------------------------- method in this implementation
...
689 |     pub(crate) fn with_file_selection(mut self, file_selection: next::FileSelection) -> Self {
    |                   ^^^^^^^^^^^^^^^^^^^

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: associated functions `new` and `from_adds` are never used
   --> crates/core/src/delta_datafusion/table_provider/next/mod.rs:111:19
    |
103 | impl FileSelection {
    | ------------------ associated functions in this implementation
...
111 |     pub(crate) fn new(file_ids: impl IntoIterator<Item = String>) -> Self {
    |                   ^^^
...
144 |     pub(crate) fn from_adds(
    |                   ^^^^^^^^^

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: call to `.clone()` on a reference in this situation does nothing
   --> crates/core/src/operations/load_cdf.rs:356:71
    |
356 |         let partition_values = snapshot.metadata().partition_columns().clone();
    |                                                                       ^^^^^^^^ help: remove this redundant call
    |
    = note: the type `[std::string::String]` does not implement `Clone`, so calling `clone` on `&[std::string::String]` copies the reference, which does not do anything and can be removed
    = note: `#[warn(noop_method_call)]` on by default

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: call to `.clone()` on a reference in this situation does nothing
    --> crates/core/src/operations/merge/mod.rs:1517:68
     |
1517 |     let table_partition_cols = current_metadata.partition_columns().clone();
     |                                                                    ^^^^^^^^ help: remove this redundant call
     |
     = note: the type `[std::string::String]` does not implement `Clone`, so calling `clone` on `&[std::string::String]` copies the reference, which does not do anything and can be removed

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: call to `.clone()` on a reference in this situation does nothing
   --> crates/core/src/operations/update.rs:306:68
    |
306 |     let table_partition_cols = current_metadata.partition_columns().clone();
    |                                                                    ^^^^^^^^ help: remove this redundant call
    |
    = note: the type `[std::string::String]` does not implement `Clone`, so calling `clone` on `&[std::string::String]` copies the reference, which does not do anything and can be removed

    Building [=======================> ] 411/412: deltalake-core                                                                                                                              
warning: `deltalake-core` (lib) generated 16 warnings (run `cargo fix --lib -p deltalake-core` to apply 6 suggestions)
    Finished `dev` profile [unoptimized] target(s) in 1m 13s

Script done on 2026-04-08 18:02:06+00:00 [COMMAND_EXIT_CODE="0"]