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Initial SQLite functionality (#5182)

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* Add SQLite functionality to open

* Add in-memory SQLite tests

* clippy fixes

* Fix up old SQLite-related tests
This commit is contained in:
Reilly Wood
2022-04-13 20:15:02 -07:00
committed by GitHub
parent 87c684c7da
commit c150e11cb4
9 changed files with 312 additions and 151 deletions
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63
crates/nu-command/tests/commands/open.rs
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@ -84,63 +84,38 @@ fn parses_more_bson_complexity() {
// sample.db has the following format:
//
// ━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━━━
// # │ table_name │ table_values
// ───┼────────────┼──────────────
// 0 │ strings │ [6 items]
// 1 │ ints │ [5 items]
// 2 │ floats │ [4 items]
// ━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━━━
// ╭─────────┬────────────────╮
// │ strings │ [table 6 rows] │
// │ ints │ [table 5 rows] │
// │ floats │ [table 4 rows] │
// ╰─────────┴────────────────╯
//
// In this case, this represents a sqlite database
// with three tables named `strings`, `ints`, and `floats`.
// The table_values represent the values for the tables:
//
// ━━━━┯━━━━━━━┯━━━━━━━━━━┯━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
// # │ x │ y │ z │ f
// ────┼───────┼──────────┼──────┼──────────────────────────────────────────────────────────────────────
// 0 │ hello │ <binary> │ │
// 1 │ hello │ <binary> │ │
// 2 │ hello │ <binary> │ │
// 3 │ hello │ <binary> │ │
// 4 │ world │ <binary> │ │
// 5 │ world │ <binary> │ │
// 6 │ │ │ 1 │
// 7 │ │ │ 42 │
// 8 │ │ │ 425 │
// 9 │ │ │ 4253 │
// 10 │ │ │ │
// 11 │ │ │ │ 3.400000000000000
// 12 │ │ │ │ 3.141592650000000
// 13 │ │ │ │ 23.00000000000000
// 14 │ │ │ │ this string that doesn't really belong here but sqlite is what it is
// ━━━━┷━━━━━━━┷━━━━━━━━━━┷━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
//
// We can see here that each table has different columns. `strings` has `x` and `y`, while
// `ints` has just `z`, and `floats` has only the column `f`. This means, in general, when working
// Each table has different columns. `strings` has `x` and `y`, while
// `ints` has just `z`, and `floats` has only the column `f`. In general, when working
// with sqlite, one will want to select a single table, e.g.:
//
// open sample.db | select 1 | get table_values
// ━━━┯━━━━━━
// # │ z
// ───┼──────
// 0 │ 1
// 1 │ 42
// 2 │ 425
// 3 │ 4253
// 4 │
// ━━━┷━━━━━━
// open sample.db | get ints
// ╭───┬──────╮
// │ # │ z │
// ├───┼──────┤
// │ 0 │ 1 │
// │ 1 │ 42 │
// │ 2 │ 425 │
// │ 3 │ 4253 │
// │ 4 │ │
// ╰───┴──────╯
#[cfg(feature = "sqlite")]
#[test]
fn parses_sqlite() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
open sample.db
| get table_values
| select 2
| get x
| get strings
| get x.0
"#
));