16370883724

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Merge fbd3d6844 into a36c87a3a

Pull Request Pull Request #3912: fix: duckdb scan cleanup

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/vortex-array/src/array/display/mod.rs

// SPDX-License-Identifier: Apache-2.0
// SPDX-FileCopyrightText: Copyright the Vortex contributors
//! Convert an array into a human-readable string representation.

mod tree;

use std::fmt::Display;

use itertools::Itertools as _;
use tree::TreeDisplayWrapper;
use vortex_error::VortexExpect as _;

use crate::Array;

/// Describe how to convert an array to a string.
///
/// See also:
/// [Array::display_as](../trait.Array.html#method.display_as)
/// and [DisplayArrayAs].
pub enum DisplayOptions {
    /// Only the top-level encoding id and limited metadata: `vortex.primitive(i16, len=5)`.
    ///
    /// ```
    /// # use vortex_array::display::DisplayOptions;
    /// # use vortex_array::IntoArray;
    /// # use vortex_buffer::buffer;
    /// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
    /// assert_eq!(
    ///     format!("{}", array.display_as(DisplayOptions::MetadataOnly)),
    ///     "vortex.primitive(i16, len=5)",
    /// );
    /// ```
    MetadataOnly,
    /// Only the logical values of the array: `[0i16, 1i16, 2i16, 3i16, 4i16]`.
    ///
    /// ```
    /// # use vortex_array::display::DisplayOptions;
    /// # use vortex_array::IntoArray;
    /// # use vortex_buffer::buffer;
    /// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
    /// assert_eq!(
    ///     format!("{}", array.display_as(DisplayOptions::default())),
    ///     "[0i16, 1i16, 2i16, 3i16, 4i16]",
    /// );
    /// assert_eq!(
    ///     format!("{}", array.display_as(DisplayOptions::default())),
    ///     format!("{}", array.display_values()),
    /// );
    /// ```
    CommaSeparatedScalars { omit_comma_after_space: bool },
    /// The tree of encodings and all metadata but no values.
    ///
    /// ```
    /// # use vortex_array::display::DisplayOptions;
    /// # use vortex_array::IntoArray;
    /// # use vortex_buffer::buffer;
    /// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
    /// let expected = "root: vortex.primitive(i16, len=5) nbytes=10 B (100.00%)
    ///   metadata: EmptyMetadata
    ///   buffer (align=2): 10 B (100.00%)
    /// ";
    /// assert_eq!(format!("{}", array.display_as(DisplayOptions::TreeDisplay)), expected);
    /// ```
    TreeDisplay,
    /// Display values in a formatted table with columns.
    ///
    /// For struct arrays, displays a column for each field in the struct.
    /// For regular arrays, displays a single column with values.
    ///
    /// ```
    /// # use vortex_array::display::DisplayOptions;
    /// # use vortex_array::arrays::StructArray;
    /// # use vortex_array::IntoArray;
    /// # use vortex_buffer::buffer;
    /// let s = StructArray::from_fields(&[
    ///     ("x", buffer![1, 2].into_array()),
    ///     ("y", buffer![3, 4].into_array()),
    /// ]).unwrap().into_array();
    /// let expected = "
    /// ┌──────┬──────┐
    /// │  x   │  y   │
    /// ├──────┼──────┤
    /// │ 1i32 │ 3i32 │
    /// ├──────┼──────┤
    /// │ 2i32 │ 4i32 │
    /// └──────┴──────┘".trim();
    /// assert_eq!(format!("{}", s.display_as(DisplayOptions::TableDisplay)), expected);
    /// ```
    #[cfg(feature = "table-display")]
    TableDisplay,
}

impl Default for DisplayOptions {
    fn default() -> Self {
        Self::CommaSeparatedScalars {
            omit_comma_after_space: false,
        }
    }
}

/// A shim used to display an array as specified in the options.
///
/// See also:
/// [Array::display_as](../trait.Array.html#method.display_as)
/// and [DisplayOptions].
pub struct DisplayArrayAs<'a>(pub &'a dyn Array, pub DisplayOptions);

impl Display for DisplayArrayAs<'_> {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        self.0.fmt_as(f, &self.1)
    }
}

/// Display the encoding and limited metadata of this array.
///
/// # Examples
/// ```
/// # use vortex_array::IntoArray;
/// # use vortex_buffer::buffer;
/// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
/// assert_eq!(
///     format!("{}", array),
///     "vortex.primitive(i16, len=5)",
/// );
/// ```
impl Display for dyn Array + '_ {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        self.fmt_as(f, &DisplayOptions::MetadataOnly)
    }
}

impl dyn Array + '_ {
    /// Display logical values of the array
    ///
    /// For example, an `i16` typed array containing the first five non-negative integers is displayed
    /// as: `[0i16, 1i16, 2i16, 3i16, 4i16]`.
    ///
    /// # Examples
    ///
    /// ```
    /// # use vortex_array::IntoArray;
    /// # use vortex_buffer::buffer;
    /// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
    /// assert_eq!(
    ///     format!("{}", array.display_values()),
    ///     "[0i16, 1i16, 2i16, 3i16, 4i16]",
    /// )
    /// ```
    ///
    /// See also:
    /// [Array::display_as](..//trait.Array.html#method.display_as),
    /// [DisplayArrayAs], and [DisplayOptions].
    pub fn display_values(&self) -> DisplayArrayAs<'_> {
        DisplayArrayAs(
            self,
            DisplayOptions::CommaSeparatedScalars {
                omit_comma_after_space: false,
            },
        )
    }

    /// Display the array as specified by the options.
    ///
    /// See [DisplayOptions] for examples.
    pub fn display_as(&self, options: DisplayOptions) -> DisplayArrayAs<'_> {
        DisplayArrayAs(self, options)
    }

    /// Display the tree of encodings of this array as an indented lists.
    ///
    /// While some metadata (such as length, bytes and validity-rate) are included, the logical
    /// values of the array are not displayed. To view the logical values see
    /// [Array::display_as](../trait.Array.html#method.display_as)
    /// and [DisplayOptions].
    ///
    /// # Examples
    /// ```
    /// # use vortex_array::display::DisplayOptions;
    /// # use vortex_array::IntoArray;
    /// # use vortex_buffer::buffer;
    /// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
    /// let expected = "root: vortex.primitive(i16, len=5) nbytes=10 B (100.00%)
    ///   metadata: EmptyMetadata
    ///   buffer (align=2): 10 B (100.00%)
    /// ";
    /// assert_eq!(format!("{}", array.display_tree()), expected);
    /// ```
    pub fn display_tree(&self) -> impl Display {
        DisplayArrayAs(self, DisplayOptions::TreeDisplay)
    }

    /// Display the array as a formatted table.
    ///
    /// For struct arrays, displays a column for each field in the struct.
    /// For regular arrays, displays a single column with values.
    ///
    /// # Examples
    /// ```
    /// # #[cfg(feature = "table-display")]
    /// # {
    /// # use vortex_array::arrays::StructArray;
    /// # use vortex_array::IntoArray;
    /// # use vortex_buffer::buffer;
    /// let s = StructArray::from_fields(&[
    ///     ("x", buffer![1, 2].into_array()),
    ///     ("y", buffer![3, 4].into_array()),
    /// ]).unwrap().into_array();
    /// let expected = "
    /// ┌──────┬──────┐
    /// │  x   │  y   │
    /// ├──────┼──────┤
    /// │ 1i32 │ 3i32 │
    /// ├──────┼──────┤
    /// │ 2i32 │ 4i32 │
    /// └──────┴──────┘".trim();
    /// assert_eq!(format!("{}", s.display_table()), expected);
    /// # }
    /// ```
    #[cfg(feature = "table-display")]
    pub fn display_table(&self) -> impl Display {
        DisplayArrayAs(self, DisplayOptions::TableDisplay)
    }

    fn fmt_as(&self, f: &mut std::fmt::Formatter, options: &DisplayOptions) -> std::fmt::Result {
        match options {
            DisplayOptions::MetadataOnly => {
                write!(
                    f,
                    "{}({}, len={})",
                    self.encoding_id(),
                    self.dtype(),
                    self.len()
                )
            }
            DisplayOptions::CommaSeparatedScalars {
                omit_comma_after_space,
            } => {
                write!(f, "[")?;
                let sep = if *omit_comma_after_space { "," } else { ", " };
                write!(
                    f,
                    "{}",
                    (0..self.len())
                        .map(|i| self.scalar_at(i).vortex_expect("index is in bounds"))
                        .format(sep)
                )?;
                write!(f, "]")
            }
            DisplayOptions::TreeDisplay => write!(f, "{}", TreeDisplayWrapper(self.to_array())),
            #[cfg(feature = "table-display")]
            DisplayOptions::TableDisplay => {
                use crate::canonical::ToCanonical;
                let mut builder = tabled::builder::Builder::default();

                let table = match self.dtype() {
                    vortex_dtype::DType::Struct(sf, _) => {
                        let struct_ = self.to_struct().vortex_expect("struct array");
                        builder.push_record(sf.names().iter().map(|name| name.to_string()));

                        for row_idx in 0..self.len() {
                            if !self.is_valid(row_idx).vortex_expect("index in bounds") {
                                let null_row = vec!["null".to_string(); sf.names().len()];
                                builder.push_record(null_row);
                            } else {
                                let mut row = Vec::new();
                                for field_array in struct_.fields() {
                                    let value = field_array
                                        .scalar_at(row_idx)
                                        .vortex_expect("index in bounds");
                                    row.push(value.to_string());
                                }
                                builder.push_record(row);
                            }
                        }

                        let mut table = builder.build();
                        table.with(tabled::settings::Style::modern());

                        // Center headers
                        for col_idx in 0..sf.names().len() {
                            table.modify((0, col_idx), tabled::settings::Alignment::center());
                        }

                        for row_idx in 0..self.len() {
                            if !self.is_valid(row_idx).vortex_expect("index is in bounds") {
                                table.modify(
                                    (1 + row_idx, 0),
                                    tabled::settings::Span::column(sf.names().len() as isize),
                                );
                                table.modify(
                                    (1 + row_idx, 0),
                                    tabled::settings::Alignment::center(),
                                );
                            }
                        }
                        table
                    }
                    _ => {
                        // For non-struct arrays, display a single column table without header
                        for row_idx in 0..self.len() {
                            let value = self.scalar_at(row_idx).vortex_expect("index is in bounds");
                            builder.push_record([value.to_string()]);
                        }

                        let mut table = builder.build();
                        table.with(tabled::settings::Style::modern());

                        table
                    }
                };
                write!(f, "{table}")
            }
        }
    }
}

#[cfg(test)]
mod test {
    use vortex_buffer::{Buffer, buffer};
    use vortex_dtype::FieldNames;

    use crate::IntoArray as _;
    use crate::arrays::{BoolArray, ListArray, StructArray};
    use crate::validity::Validity;

    #[test]
    fn test_primitive() {
        let x = Buffer::<u32>::empty().into_array();
        assert_eq!(x.display_values().to_string(), "[]");

        let x = buffer![1].into_array();
        assert_eq!(x.display_values().to_string(), "[1i32]");

        let x = buffer![1, 2, 3, 4].into_array();
        assert_eq!(x.display_values().to_string(), "[1i32, 2i32, 3i32, 4i32]");
    }

    #[test]
    fn test_empty_struct() {
        let s = StructArray::try_new(
            FieldNames::from(vec![]),
            vec![],
            3,
            Validity::Array(BoolArray::from_iter([true, false, true]).into_array()),
        )
        .unwrap()
        .into_array();
        assert_eq!(s.display_values().to_string(), "[{}, null, {}]");
    }

    #[test]
    fn test_simple_struct() {
        let s = StructArray::from_fields(&[
            ("x", buffer![1, 2, 3, 4].into_array()),
            ("y", buffer![-1, -2, -3, -4].into_array()),
        ])
        .unwrap()
        .into_array();
        assert_eq!(
            s.display_values().to_string(),
            "[{x: 1i32, y: -1i32}, {x: 2i32, y: -2i32}, {x: 3i32, y: -3i32}, {x: 4i32, y: -4i32}]"
        );
    }

    #[test]
    fn test_list() {
        let x = ListArray::try_new(
            buffer![1, 2, 3, 4].into_array(),
            buffer![0, 0, 1, 1, 2, 4].into_array(),
            Validity::Array(BoolArray::from_iter([true, true, false, true, true]).into_array()),
        )
        .unwrap()
        .into_array();
        assert_eq!(
            x.display_values().to_string(),
            "[[], [1i32], null, [2i32], [3i32, 4i32]]"
        );
    }

    #[test]
    #[cfg(feature = "table-display")]
    fn test_table_display_primitive() {
        use crate::display::DisplayOptions;

        let array = buffer![1, 2, 3, 4].into_array();
        let table_display = array.display_as(DisplayOptions::TableDisplay);
        assert_eq!(
            table_display.to_string(),
            r"
┌──────┐
│ 1i32 │
├──────┤
│ 2i32 │
├──────┤
│ 3i32 │
├──────┤
│ 4i32 │
└──────┘"
                .trim()
        );
    }

    #[test]
    #[cfg(feature = "table-display")]
    fn test_table_display() {
        use crate::display::DisplayOptions;

        let array = crate::arrays::PrimitiveArray::from_option_iter(vec![
            Some(-1),
            Some(-2),
            Some(-3),
            None,
        ])
        .into_array();

        let struct_ = StructArray::try_from_iter_with_validity(
            [("x", buffer![1, 2, 3, 4].into_array()), ("y", array)],
            Validity::Array(BoolArray::from_iter([true, false, true, true]).into_array()),
        )
        .unwrap()
        .into_array();

        let table_display = struct_.display_as(DisplayOptions::TableDisplay);
        assert_eq!(
            table_display.to_string(),
            r"
┌──────┬───────┐
│  x   │   y   │
├──────┼───────┤
│ 1i32 │ -1i32 │
├──────┼───────┤
│     null     │
├──────┼───────┤
│ 3i32 │ -3i32 │
├──────┼───────┤
│ 4i32 │ null  │
└──────┴───────┘"
                .trim()
        );
    }
}

1	// SPDX-License-Identifier: Apache-2.0
2	// SPDX-FileCopyrightText: Copyright the Vortex contributors
3	//! Convert an array into a human-readable string representation.
4
5	mod tree;
6
7	use std::fmt::Display;
8
9	use itertools::Itertools as _;
10	use tree::TreeDisplayWrapper;
11	use vortex_error::VortexExpect as _;
12
13	use crate::Array;
14
15	/// Describe how to convert an array to a string.
16	///
17	/// See also:
18	/// [Array::display_as](../trait.Array.html#method.display_as)
19	/// and [DisplayArrayAs].
20	pub enum DisplayOptions {
21	/// Only the top-level encoding id and limited metadata: `vortex.primitive(i16, len=5)`.
22	///
23	/// ```
24	/// # use vortex_array::display::DisplayOptions;
25	/// # use vortex_array::IntoArray;
26	/// # use vortex_buffer::buffer;
27	/// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
28	/// assert_eq!(
29	/// format!("{}", array.display_as(DisplayOptions::MetadataOnly)),
30	/// "vortex.primitive(i16, len=5)",
31	/// );
32	/// ```
33	MetadataOnly,
34	/// Only the logical values of the array: `[0i16, 1i16, 2i16, 3i16, 4i16]`.
35	///
36	/// ```
37	/// # use vortex_array::display::DisplayOptions;
38	/// # use vortex_array::IntoArray;
39	/// # use vortex_buffer::buffer;
40	/// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
41	/// assert_eq!(
42	/// format!("{}", array.display_as(DisplayOptions::default())),
43	/// "[0i16, 1i16, 2i16, 3i16, 4i16]",
44	/// );
45	/// assert_eq!(
46	/// format!("{}", array.display_as(DisplayOptions::default())),
47	/// format!("{}", array.display_values()),
48	/// );
49	/// ```
50	CommaSeparatedScalars { omit_comma_after_space: bool },
51	/// The tree of encodings and all metadata but no values.
52	///
53	/// ```
54	/// # use vortex_array::display::DisplayOptions;
55	/// # use vortex_array::IntoArray;
56	/// # use vortex_buffer::buffer;
57	/// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
58	/// let expected = "root: vortex.primitive(i16, len=5) nbytes=10 B (100.00%)
59	/// metadata: EmptyMetadata
60	/// buffer (align=2): 10 B (100.00%)
61	/// ";
62	/// assert_eq!(format!("{}", array.display_as(DisplayOptions::TreeDisplay)), expected);
63	/// ```
64	TreeDisplay,
65	/// Display values in a formatted table with columns.
66	///
67	/// For struct arrays, displays a column for each field in the struct.
68	/// For regular arrays, displays a single column with values.
69	///
70	/// ```
71	/// # use vortex_array::display::DisplayOptions;
72	/// # use vortex_array::arrays::StructArray;
73	/// # use vortex_array::IntoArray;
74	/// # use vortex_buffer::buffer;
75	/// let s = StructArray::from_fields(&[
76	/// ("x", buffer![1, 2].into_array()),
77	/// ("y", buffer![3, 4].into_array()),
78	/// ]).unwrap().into_array();
79	/// let expected = "
80	/// ┌──────┬──────┐
81	/// │ x │ y │
82	/// ├──────┼──────┤
83	/// │ 1i32 │ 3i32 │
84	/// ├──────┼──────┤
85	/// │ 2i32 │ 4i32 │
86	/// └──────┴──────┘".trim();
87	/// assert_eq!(format!("{}", s.display_as(DisplayOptions::TableDisplay)), expected);
88	/// ```
89	#[cfg(feature = "table-display")]
90	TableDisplay,
91	}
92
93	impl Default for DisplayOptions {
UNCOV 94	fn default() -> Self {	×
UNCOV 95	Self::CommaSeparatedScalars {	×
UNCOV 96	omit_comma_after_space: false,	×
UNCOV 97	}	×
UNCOV 98	}	×
99	}
100
101	/// A shim used to display an array as specified in the options.
102	///
103	/// See also:
104	/// [Array::display_as](../trait.Array.html#method.display_as)
105	/// and [DisplayOptions].
106	pub struct DisplayArrayAs<'a>(pub &'a dyn Array, pub DisplayOptions);
107
108	impl Display for DisplayArrayAs<'_> {
109	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {	1,343✔
110	self.0.fmt_as(f, &self.1)	1,343✔
111	}	1,343✔
112	}
113
114	/// Display the encoding and limited metadata of this array.
115	///
116	/// # Examples
117	/// ```
118	/// # use vortex_array::IntoArray;
119	/// # use vortex_buffer::buffer;
120	/// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
121	/// assert_eq!(
122	/// format!("{}", array),
123	/// "vortex.primitive(i16, len=5)",
124	/// );
125	/// ```
126	impl Display for dyn Array + '_ {
UNCOV 127	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {	×
UNCOV 128	self.fmt_as(f, &DisplayOptions::MetadataOnly)	×
UNCOV 129	}	×
130	}
131
132	impl dyn Array + '_ {
133	/// Display logical values of the array
134	///
135	/// For example, an `i16` typed array containing the first five non-negative integers is displayed
136	/// as: `[0i16, 1i16, 2i16, 3i16, 4i16]`.
137	///
138	/// # Examples
139	///
140	/// ```
141	/// # use vortex_array::IntoArray;
142	/// # use vortex_buffer::buffer;
143	/// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
144	/// assert_eq!(
145	/// format!("{}", array.display_values()),
146	/// "[0i16, 1i16, 2i16, 3i16, 4i16]",
147	/// )
148	/// ```
149	///
150	/// See also:
151	/// [Array::display_as](..//trait.Array.html#method.display_as),
152	/// [DisplayArrayAs], and [DisplayOptions].
153	pub fn display_values(&self) -> DisplayArrayAs<'_> {	150✔
154	DisplayArrayAs(	150✔
155	self,	150✔
156	DisplayOptions::CommaSeparatedScalars {	150✔
157	omit_comma_after_space: false,	150✔
158	},	150✔
159	)	150✔
160	}	150✔
161
162	/// Display the array as specified by the options.
163	///
164	/// See [DisplayOptions] for examples.
165	pub fn display_as(&self, options: DisplayOptions) -> DisplayArrayAs<'_> {	832✔
166	DisplayArrayAs(self, options)	832✔
167	}	832✔
168
169	/// Display the tree of encodings of this array as an indented lists.
170	///
171	/// While some metadata (such as length, bytes and validity-rate) are included, the logical
172	/// values of the array are not displayed. To view the logical values see
173	/// [Array::display_as](../trait.Array.html#method.display_as)
174	/// and [DisplayOptions].
175	///
176	/// # Examples
177	/// ```
178	/// # use vortex_array::display::DisplayOptions;
179	/// # use vortex_array::IntoArray;
180	/// # use vortex_buffer::buffer;
181	/// let array = buffer![0_i16, 1, 2, 3, 4].into_array();
182	/// let expected = "root: vortex.primitive(i16, len=5) nbytes=10 B (100.00%)
183	/// metadata: EmptyMetadata
184	/// buffer (align=2): 10 B (100.00%)
185	/// ";
186	/// assert_eq!(format!("{}", array.display_tree()), expected);
187	/// ```
188	pub fn display_tree(&self) -> impl Display {	361✔
189	DisplayArrayAs(self, DisplayOptions::TreeDisplay)	361✔
190	}	361✔
191
192	/// Display the array as a formatted table.
193	///
194	/// For struct arrays, displays a column for each field in the struct.
195	/// For regular arrays, displays a single column with values.
196	///
197	/// # Examples
198	/// ```
199	/// # #[cfg(feature = "table-display")]
200	/// # {
201	/// # use vortex_array::arrays::StructArray;
202	/// # use vortex_array::IntoArray;
203	/// # use vortex_buffer::buffer;
204	/// let s = StructArray::from_fields(&[
205	/// ("x", buffer![1, 2].into_array()),
206	/// ("y", buffer![3, 4].into_array()),
207	/// ]).unwrap().into_array();
208	/// let expected = "
209	/// ┌──────┬──────┐
210	/// │ x │ y │
211	/// ├──────┼──────┤
212	/// │ 1i32 │ 3i32 │
213	/// ├──────┼──────┤
214	/// │ 2i32 │ 4i32 │
215	/// └──────┴──────┘".trim();
216	/// assert_eq!(format!("{}", s.display_table()), expected);
217	/// # }
218	/// ```
219	#[cfg(feature = "table-display")]
220	pub fn display_table(&self) -> impl Display {
221	DisplayArrayAs(self, DisplayOptions::TableDisplay)
222	}
223
224	fn fmt_as(&self, f: &mut std::fmt::Formatter, options: &DisplayOptions) -> std::fmt::Result {	1,343✔
225	match options {	1,343✔
226	DisplayOptions::MetadataOnly => {
227	write!(	830✔
228	f,	830✔
229	"{}({}, len={})",	830✔
230	self.encoding_id(),	830✔
231	self.dtype(),	830✔
232	self.len()	830✔
233	)
234	}
235	DisplayOptions::CommaSeparatedScalars {
236	omit_comma_after_space,	150✔
237	} => {
238	write!(f, "[")?;	150✔
239	let sep = if *omit_comma_after_space { "," } else { ", " };	150✔
240	write!(	150✔
241	f,	150✔
242	"{}",	150✔
243	(0..self.len())	150✔
244	.map(\|i\| self.scalar_at(i).vortex_expect("index is in bounds"))	989✔
245	.format(sep)	150✔
UNCOV 246	)?;	×
247	write!(f, "]")	150✔
248	}
249	DisplayOptions::TreeDisplay => write!(f, "{}", TreeDisplayWrapper(self.to_array())),	361✔
250	#[cfg(feature = "table-display")]
251	DisplayOptions::TableDisplay => {
252	use crate::canonical::ToCanonical;
253	let mut builder = tabled::builder::Builder::default();	2✔
254
255	let table = match self.dtype() {	2✔
256	vortex_dtype::DType::Struct(sf, _) => {	1✔
257	let struct_ = self.to_struct().vortex_expect("struct array");	1✔
258	builder.push_record(sf.names().iter().map(\|name\| name.to_string()));	2✔
259
260	for row_idx in 0..self.len() {	4✔
261	if !self.is_valid(row_idx).vortex_expect("index in bounds") {	4✔
262	let null_row = vec!["null".to_string(); sf.names().len()];	1✔
263	builder.push_record(null_row);	1✔
264	} else {	1✔
265	let mut row = Vec::new();	3✔
266	for field_array in struct_.fields() {	6✔
267	let value = field_array	6✔
268	.scalar_at(row_idx)	6✔
269	.vortex_expect("index in bounds");	6✔
270	row.push(value.to_string());	6✔
271	}	6✔
272	builder.push_record(row);	3✔
273	}
274	}
275
276	let mut table = builder.build();	1✔
277	table.with(tabled::settings::Style::modern());	1✔
278
279	// Center headers
280	for col_idx in 0..sf.names().len() {	2✔
281	table.modify((0, col_idx), tabled::settings::Alignment::center());	2✔
282	}	2✔
283
284	for row_idx in 0..self.len() {	4✔
285	if !self.is_valid(row_idx).vortex_expect("index is in bounds") {	4✔
286	table.modify(	1✔
287	(1 + row_idx, 0),	1✔
288	tabled::settings::Span::column(sf.names().len() as isize),	1✔
289	);	1✔
290	table.modify(	1✔
291	(1 + row_idx, 0),	1✔
292	tabled::settings::Alignment::center(),	1✔
293	);	1✔
294	}	3✔
295	}
296	table	1✔
297	}
298	_ => {
299	// For non-struct arrays, display a single column table without header
300	for row_idx in 0..self.len() {	4✔
301	let value = self.scalar_at(row_idx).vortex_expect("index is in bounds");	4✔
302	builder.push_record([value.to_string()]);	4✔
303	}	4✔
304
305	let mut table = builder.build();	1✔
306	table.with(tabled::settings::Style::modern());	1✔
307
308	table	1✔
309	}
310	};
311	write!(f, "{table}")	2✔
312	}
313	}
314	}	1,343✔
315	}
316
317	#[cfg(test)]
318	mod test {
319	use vortex_buffer::{Buffer, buffer};
320	use vortex_dtype::FieldNames;
321
322	use crate::IntoArray as _;
323	use crate::arrays::{BoolArray, ListArray, StructArray};
324	use crate::validity::Validity;
325
326	#[test]
327	fn test_primitive() {	1✔
328	let x = Buffer::<u32>::empty().into_array();	1✔
329	assert_eq!(x.display_values().to_string(), "[]");	1✔
330
331	let x = buffer![1].into_array();	1✔
332	assert_eq!(x.display_values().to_string(), "[1i32]");	1✔
333
334	let x = buffer![1, 2, 3, 4].into_array();	1✔
335	assert_eq!(x.display_values().to_string(), "[1i32, 2i32, 3i32, 4i32]");	1✔
336	}	1✔
337
338	#[test]
339	fn test_empty_struct() {	1✔
340	let s = StructArray::try_new(	1✔
341	FieldNames::from(vec![]),	1✔
342	vec![],	1✔
343	3,
344	Validity::Array(BoolArray::from_iter([true, false, true]).into_array()),	1✔
345	)
346	.unwrap()	1✔
347	.into_array();	1✔
348	assert_eq!(s.display_values().to_string(), "[{}, null, {}]");	1✔
349	}	1✔
350
351	#[test]
352	fn test_simple_struct() {	1✔
353	let s = StructArray::from_fields(&[	1✔
354	("x", buffer![1, 2, 3, 4].into_array()),	1✔
355	("y", buffer![-1, -2, -3, -4].into_array()),	1✔
356	])	1✔
357	.unwrap()	1✔
358	.into_array();	1✔
359	assert_eq!(	1✔
360	s.display_values().to_string(),	1✔
361	"[{x: 1i32, y: -1i32}, {x: 2i32, y: -2i32}, {x: 3i32, y: -3i32}, {x: 4i32, y: -4i32}]"
362	);
363	}	1✔
364
365	#[test]
366	fn test_list() {	1✔
367	let x = ListArray::try_new(	1✔
368	buffer![1, 2, 3, 4].into_array(),	1✔
369	buffer![0, 0, 1, 1, 2, 4].into_array(),	1✔
370	Validity::Array(BoolArray::from_iter([true, true, false, true, true]).into_array()),	1✔
371	)
372	.unwrap()	1✔
373	.into_array();	1✔
374	assert_eq!(	1✔
375	x.display_values().to_string(),	1✔
376	"[[], [1i32], null, [2i32], [3i32, 4i32]]"
377	);
378	}	1✔
379
380	#[test]
381	#[cfg(feature = "table-display")]
382	fn test_table_display_primitive() {	1✔
383	use crate::display::DisplayOptions;
384
385	let array = buffer![1, 2, 3, 4].into_array();	1✔
386	let table_display = array.display_as(DisplayOptions::TableDisplay);	1✔
387	assert_eq!(	1✔
388	table_display.to_string(),	1✔
389	r"	1✔
390	┌──────┐	1✔
391	│ 1i32 │	1✔
392	├──────┤	1✔
393	│ 2i32 │	1✔
394	├──────┤	1✔
395	│ 3i32 │	1✔
396	├──────┤	1✔
397	│ 4i32 │	1✔
398	└──────┘"	1✔
399	.trim()	1✔
400	);
401	}	1✔
402
403	#[test]
404	#[cfg(feature = "table-display")]
405	fn test_table_display() {	1✔
406	use crate::display::DisplayOptions;
407
408	let array = crate::arrays::PrimitiveArray::from_option_iter(vec![	1✔
409	Some(-1),	1✔
410	Some(-2),	1✔
411	Some(-3),	1✔
412	None,	1✔
413	])
414	.into_array();	1✔
415
416	let struct_ = StructArray::try_from_iter_with_validity(	1✔
417	[("x", buffer![1, 2, 3, 4].into_array()), ("y", array)],	1✔
418	Validity::Array(BoolArray::from_iter([true, false, true, true]).into_array()),	1✔
419	)
420	.unwrap()	1✔
421	.into_array();	1✔
422
423	let table_display = struct_.display_as(DisplayOptions::TableDisplay);	1✔
424	assert_eq!(	1✔
425	table_display.to_string(),	1✔
426	r"	1✔
427	┌──────┬───────┐	1✔
428	│ x │ y │	1✔
429	├──────┼───────┤	1✔
430	│ 1i32 │ -1i32 │	1✔
431	├──────┼───────┤	1✔
432	│ null │	1✔
433	├──────┼───────┤	1✔
434	│ 3i32 │ -3i32 │	1✔
435	├──────┼───────┤	1✔
436	│ 4i32 │ null │	1✔
437	└──────┴───────┘"	1✔
438	.trim()	1✔
439	);
440	}	1✔
441	}

vortex-data / vortex / 16370883724

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