2021-08-25 15:34:33 +02:00
|
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|
<p align="center">
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<a href="https://uptrace.dev/?utm_source=gh-redis&utm_campaign=gh-redis-banner1">
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|
<img src="https://raw.githubusercontent.com/uptrace/roadmap/master/banner1.png" alt="All-in-one tool to optimize performance and monitor errors & logs">
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</a>
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</p>
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|
|
2021-09-08 21:05:26 +02:00
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|
# Simple and performant client for PostgreSQL, MySQL, and SQLite
|
2021-08-25 15:34:33 +02:00
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[](https://github.com/uptrace/bun/actions)
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|
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[](https://pkg.go.dev/github.com/uptrace/bun)
|
|
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|
|
[](https://bun.uptrace.dev/)
|
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|
|
|
2021-09-08 21:05:26 +02:00
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|
|
**Status**: API freeze (stable release). Note that all sub-packages (mainly extra/\* packages) are
|
2021-09-29 15:09:45 +02:00
|
|
|
not part of the API freeze and are developed independently. You can think of them as of 3rd party
|
2021-09-08 21:05:26 +02:00
|
|
|
packages that share one repo with the core.
|
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|
2021-08-25 15:34:33 +02:00
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|
Main features are:
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|
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|
|
- Works with [PostgreSQL](https://bun.uptrace.dev/guide/drivers.html#postgresql),
|
2021-09-08 21:05:26 +02:00
|
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|
[MySQL](https://bun.uptrace.dev/guide/drivers.html#mysql) (including MariaDB),
|
2021-08-25 15:34:33 +02:00
|
|
|
[SQLite](https://bun.uptrace.dev/guide/drivers.html#sqlite).
|
2021-11-27 15:26:58 +01:00
|
|
|
- [Selecting](/example/basic/) into scalars, structs, maps, slices of maps/structs/scalars.
|
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|
|
- [Bulk inserts](https://bun.uptrace.dev/guide/query-insert.html).
|
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|
- [Bulk updates](https://bun.uptrace.dev/guide/query-update.html) using common table expressions.
|
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|
- [Bulk deletes](https://bun.uptrace.dev/guide/query-delete.html).
|
2021-08-25 15:34:33 +02:00
|
|
|
- [Fixtures](https://bun.uptrace.dev/guide/fixtures.html).
|
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|
- [Migrations](https://bun.uptrace.dev/guide/migrations.html).
|
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|
|
- [Soft deletes](https://bun.uptrace.dev/guide/soft-deletes.html).
|
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|
Resources:
|
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|
|
|
2021-12-12 15:47:51 +01:00
|
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|
- [**Get started**](https://bun.uptrace.dev/guide/getting-started.html)
|
2021-08-25 15:34:33 +02:00
|
|
|
- [Examples](https://github.com/uptrace/bun/tree/master/example)
|
2021-12-12 15:47:51 +01:00
|
|
|
- [Discussions](https://github.com/uptrace/bun/discussions)
|
|
|
|
|
- [Newsletter](https://blog.uptrace.dev/pages/newsletter.html) to get latest updates.
|
2021-08-25 15:34:33 +02:00
|
|
|
- [Reference](https://pkg.go.dev/github.com/uptrace/bun)
|
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|
- [Starter kit](https://github.com/go-bun/bun-starter-kit)
|
2021-09-29 15:09:45 +02:00
|
|
|
|
|
|
|
|
Projects using Bun:
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|
- [gotosocial](https://github.com/superseriousbusiness/gotosocial) - Golang fediverse server.
|
2021-11-27 15:26:58 +01:00
|
|
|
- [qvalet](https://github.com/cmaster11/qvalet) listens for HTTP requests and executes commands on
|
|
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|
|
demand.
|
2021-08-25 15:34:33 +02:00
|
|
|
- [RealWorld app](https://github.com/go-bun/bun-realworld-app)
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|
2022-03-07 11:08:26 +01:00
|
|
|
## Benchmark
|
|
|
|
|
[https://github.com/davars/dbeval](https://github.com/davars/dbeval)
|
2021-08-25 15:34:33 +02:00
|
|
|
<details>
|
2022-03-07 11:08:26 +01:00
|
|
|
<summary>results</summary>
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
BenchmarkInsert
|
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|
BenchmarkInsert/*dbeval.Memory/Authors
|
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BenchmarkInsert/*dbeval.Memory/Authors-4 84450 12104 ns/op 2623 B/op 70 allocs/op
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BenchmarkInsert/*dbeval.Xorm/Authors
|
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BenchmarkInsert/*dbeval.Xorm/Authors-4 7291 153505 ns/op 9024 B/op 311 allocs/op
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BenchmarkInsert/*dbeval.UpperDB/Authors
|
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BenchmarkInsert/*dbeval.UpperDB/Authors-4 4608 223672 ns/op 24160 B/op 1100 allocs/op
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BenchmarkInsert/*dbeval.Bun/Authors
|
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BenchmarkInsert/*dbeval.Bun/Authors-4 6034 186439 ns/op 6818 B/op 80 allocs/op
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BenchmarkInsert/*dbeval.PQ/Authors
|
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BenchmarkInsert/*dbeval.PQ/Authors-4 1141 907494 ns/op 6487 B/op 193 allocs/op
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BenchmarkInsert/*dbeval.SQLX/Authors
|
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BenchmarkInsert/*dbeval.SQLX/Authors-4 1165 916987 ns/op 10089 B/op 271 allocs/op
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BenchmarkInsert/*dbeval.Ozzo/Authors
|
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BenchmarkInsert/*dbeval.Ozzo/Authors-4 1105 1058082 ns/op 27826 B/op 588 allocs/op
|
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|
BenchmarkInsert/*dbeval.PGXStdlib/Authors
|
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|
BenchmarkInsert/*dbeval.PGXStdlib/Authors-4 1228 900207 ns/op 6032 B/op 180 allocs/op
|
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BenchmarkInsert/*dbeval.Gorm/Authors
|
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|
BenchmarkInsert/*dbeval.Gorm/Authors-4 946 1184285 ns/op 35634 B/op 918 allocs/op
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BenchmarkInsert/*dbeval.PGX/Authors
|
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BenchmarkInsert/*dbeval.PGX/Authors-4 1116 923728 ns/op 3839 B/op 130 allocs/op
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BenchmarkInsert/*dbeval.DBR/Authors
|
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BenchmarkInsert/*dbeval.DBR/Authors-4 5800 183982 ns/op 8646 B/op 230 allocs/op
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BenchmarkInsert/*dbeval.GoPG/Authors
|
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BenchmarkInsert/*dbeval.GoPG/Authors-4 6110 173923 ns/op 2906 B/op 87 allocs/op
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BenchmarkInsert/*dbeval.DBR/Articles
|
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|
BenchmarkInsert/*dbeval.DBR/Articles-4 1706 684466 ns/op 133346 B/op 1614 allocs/op
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BenchmarkInsert/*dbeval.PQ/Articles
|
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|
BenchmarkInsert/*dbeval.PQ/Articles-4 884 1249791 ns/op 100403 B/op 1491 allocs/op
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BenchmarkInsert/*dbeval.PGX/Articles
|
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BenchmarkInsert/*dbeval.PGX/Articles-4 916 1288143 ns/op 83539 B/op 1392 allocs/op
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|
BenchmarkInsert/*dbeval.GoPG/Articles
|
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|
BenchmarkInsert/*dbeval.GoPG/Articles-4 1726 622639 ns/op 78638 B/op 1359 allocs/op
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BenchmarkInsert/*dbeval.SQLX/Articles
|
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|
BenchmarkInsert/*dbeval.SQLX/Articles-4 860 1262599 ns/op 92030 B/op 1574 allocs/op
|
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BenchmarkInsert/*dbeval.Gorm/Articles
|
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|
BenchmarkInsert/*dbeval.Gorm/Articles-4 782 1421550 ns/op 136534 B/op 2411 allocs/op
|
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|
BenchmarkInsert/*dbeval.PGXStdlib/Articles
|
|
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|
BenchmarkInsert/*dbeval.PGXStdlib/Articles-4 938 1230576 ns/op 86743 B/op 1441 allocs/op
|
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|
BenchmarkInsert/*dbeval.Bun/Articles
|
|
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|
BenchmarkInsert/*dbeval.Bun/Articles-4 1843 626681 ns/op 101610 B/op 1323 allocs/op
|
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|
BenchmarkInsert/*dbeval.Xorm/Articles
|
|
|
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|
BenchmarkInsert/*dbeval.Xorm/Articles-4 1677 650244 ns/op 126677 B/op 1752 allocs/op
|
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|
BenchmarkInsert/*dbeval.Memory/Articles
|
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|
|
BenchmarkInsert/*dbeval.Memory/Articles-4 1988 1223308 ns/op 77576 B/op 1310 allocs/op
|
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|
BenchmarkInsert/*dbeval.UpperDB/Articles
|
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|
BenchmarkInsert/*dbeval.UpperDB/Articles-4 1696 687130 ns/op 139680 B/op 2862 allocs/op
|
|
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|
BenchmarkInsert/*dbeval.Ozzo/Articles
|
|
|
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|
BenchmarkInsert/*dbeval.Ozzo/Articles-4 697 1496859 ns/op 114780 B/op 1950 allocs/op
|
|
|
|
|
|
|
|
|
|
BenchmarkFindAuthorByID
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.UpperDB
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.UpperDB-4 10184 117527 ns/op 9953 B/op 441 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.Bun
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.Bun-4 20716 54261 ns/op 5096 B/op 15 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.Ozzo
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.Ozzo-4 11166 91043 ns/op 3088 B/op 64 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.PQ
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.PQ-4 13875 86171 ns/op 844 B/op 24 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.PGX
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.PGX-4 13846 79983 ns/op 719 B/op 15 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.Memory
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.Memory-4 14113720 82.33 ns/op 0 B/op 0 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.Xorm
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.Xorm-4 12027 98519 ns/op 3633 B/op 106 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.Gorm
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.Gorm-4 11521 102241 ns/op 6592 B/op 143 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.PGXStdlib
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.PGXStdlib-4 13933 82626 ns/op 1174 B/op 28 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.DBR
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.DBR-4 21920 51175 ns/op 1756 B/op 39 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.SQLX
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.SQLX-4 13603 80788 ns/op 1327 B/op 32 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.GoPG
|
|
|
|
|
BenchmarkFindAuthorByID/*dbeval.GoPG-4 23174 50042 ns/op 869 B/op 17 allocs/op
|
|
|
|
|
|
|
|
|
|
BenchmarkFindAuthorByName
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.SQLX
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.SQLX-4 1070 1065272 ns/op 126348 B/op 4018 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.Bun
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.Bun-4 877 1231377 ns/op 115803 B/op 5005 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.Xorm
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.Xorm-4 471 2345445 ns/op 455711 B/op 19080 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.DBR
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.DBR-4 954 1089977 ns/op 120070 B/op 6023 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.PQ
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.PQ-4 1333 784400 ns/op 87159 B/op 4006 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.GoPG
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.GoPG-4 1580 770966 ns/op 87525 B/op 3028 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.UpperDB
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.UpperDB-4 789 1314164 ns/op 190689 B/op 6428 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.Ozzo
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.Ozzo-4 948 1255282 ns/op 238764 B/op 6053 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.PGXStdlib
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.PGXStdlib-4 1279 920391 ns/op 126163 B/op 4014 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.PGX
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.PGX-4 1364 780970 ns/op 101967 B/op 2028 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.Gorm
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.Gorm-4 340 3445818 ns/op 1573637 B/op 27102 allocs/op
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.Memory
|
|
|
|
|
BenchmarkFindAuthorByName/*dbeval.Memory-4 38081223 31.24 ns/op 0 B/op 0 allocs/op
|
|
|
|
|
|
|
|
|
|
BenchmarkRecentArticles
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.PGXStdlib
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.PGXStdlib-4 358 3344119 ns/op 3425578 B/op 14177 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.GoPG
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.GoPG-4 364 3156372 ns/op 1794091 B/op 10032 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.Xorm
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.Xorm-4 157 7567835 ns/op 5018011 B/op 81425 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.Gorm
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.Gorm-4 139 7980084 ns/op 6776277 B/op 85418 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.SQLX
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.SQLX-4 338 3289802 ns/op 3425890 B/op 14181 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.Ozzo
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.Ozzo-4 320 3508322 ns/op 4025966 B/op 18207 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.DBR
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.DBR-4 237 5248644 ns/op 3331003 B/op 21370 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.Bun
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.Bun-4 280 4528582 ns/op 1864362 B/op 15965 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.UpperDB
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.UpperDB-4 297 3704663 ns/op 3607287 B/op 18542 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.PQ
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.PQ-4 308 3489229 ns/op 3277050 B/op 17359 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.Memory
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.Memory-4 29590380 42.27 ns/op 0 B/op 0 allocs/op
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.PGX
|
|
|
|
|
BenchmarkRecentArticles/*dbeval.PGX-4 356 3345500 ns/op 3297316 B/op 6226 allocs/op
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
</details>
|
|
|
|
|
|
|
|
|
|
[https://github.com/frederikhors/orm-benchmark](https://github.com/frederikhors/orm-benchmark)
|
|
|
|
|
<details>
|
|
|
|
|
<summary>results</summary>
|
2021-08-25 15:34:33 +02:00
|
|
|
|
|
|
|
|
```
|
|
|
|
|
4000 times - Insert
|
|
|
|
|
raw_stmt: 0.38s 94280 ns/op 718 B/op 14 allocs/op
|
|
|
|
|
raw: 0.39s 96719 ns/op 718 B/op 13 allocs/op
|
|
|
|
|
beego_orm: 0.48s 118994 ns/op 2411 B/op 56 allocs/op
|
|
|
|
|
bun: 0.57s 142285 ns/op 918 B/op 12 allocs/op
|
|
|
|
|
pg: 0.58s 145496 ns/op 1235 B/op 12 allocs/op
|
|
|
|
|
gorm: 0.70s 175294 ns/op 6665 B/op 88 allocs/op
|
|
|
|
|
xorm: 0.76s 189533 ns/op 3032 B/op 94 allocs/op
|
|
|
|
|
|
|
|
|
|
4000 times - MultiInsert 100 row
|
|
|
|
|
raw: 4.59s 1147385 ns/op 135155 B/op 916 allocs/op
|
|
|
|
|
raw_stmt: 4.59s 1148137 ns/op 131076 B/op 916 allocs/op
|
|
|
|
|
beego_orm: 5.50s 1375637 ns/op 179962 B/op 2747 allocs/op
|
|
|
|
|
bun: 6.18s 1544648 ns/op 4265 B/op 214 allocs/op
|
|
|
|
|
pg: 7.01s 1753495 ns/op 5039 B/op 114 allocs/op
|
|
|
|
|
gorm: 9.52s 2379219 ns/op 293956 B/op 3729 allocs/op
|
|
|
|
|
xorm: 11.66s 2915478 ns/op 286140 B/op 7422 allocs/op
|
|
|
|
|
|
|
|
|
|
4000 times - Update
|
|
|
|
|
raw_stmt: 0.26s 65781 ns/op 773 B/op 14 allocs/op
|
|
|
|
|
raw: 0.31s 77209 ns/op 757 B/op 13 allocs/op
|
|
|
|
|
beego_orm: 0.43s 107064 ns/op 1802 B/op 47 allocs/op
|
|
|
|
|
bun: 0.56s 139839 ns/op 589 B/op 4 allocs/op
|
|
|
|
|
pg: 0.60s 149608 ns/op 896 B/op 11 allocs/op
|
|
|
|
|
gorm: 0.74s 185970 ns/op 6604 B/op 81 allocs/op
|
|
|
|
|
xorm: 0.81s 203240 ns/op 2994 B/op 119 allocs/op
|
|
|
|
|
|
|
|
|
|
4000 times - Read
|
|
|
|
|
raw: 0.33s 81671 ns/op 2081 B/op 49 allocs/op
|
|
|
|
|
raw_stmt: 0.34s 85847 ns/op 2112 B/op 50 allocs/op
|
|
|
|
|
beego_orm: 0.38s 94777 ns/op 2106 B/op 75 allocs/op
|
|
|
|
|
pg: 0.42s 106148 ns/op 1526 B/op 22 allocs/op
|
|
|
|
|
bun: 0.43s 106904 ns/op 1319 B/op 18 allocs/op
|
|
|
|
|
gorm: 0.65s 162221 ns/op 5240 B/op 108 allocs/op
|
|
|
|
|
xorm: 1.13s 281738 ns/op 8326 B/op 237 allocs/op
|
|
|
|
|
|
|
|
|
|
4000 times - MultiRead limit 100
|
|
|
|
|
raw: 1.52s 380351 ns/op 38356 B/op 1037 allocs/op
|
|
|
|
|
raw_stmt: 1.54s 385541 ns/op 38388 B/op 1038 allocs/op
|
|
|
|
|
pg: 1.86s 465468 ns/op 24045 B/op 631 allocs/op
|
|
|
|
|
bun: 2.58s 645354 ns/op 30009 B/op 1122 allocs/op
|
|
|
|
|
beego_orm: 2.93s 732028 ns/op 55280 B/op 3077 allocs/op
|
|
|
|
|
gorm: 4.97s 1241831 ns/op 71628 B/op 3877 allocs/op
|
|
|
|
|
xorm: doesn't work
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
</details>
|
|
|
|
|
|
2021-11-13 12:29:08 +01:00
|
|
|
## Why another database client?
|
|
|
|
|
|
|
|
|
|
So you can elegantly write complex queries:
|
|
|
|
|
|
|
|
|
|
```go
|
|
|
|
|
regionalSales := db.NewSelect().
|
|
|
|
|
ColumnExpr("region").
|
|
|
|
|
ColumnExpr("SUM(amount) AS total_sales").
|
|
|
|
|
TableExpr("orders").
|
|
|
|
|
GroupExpr("region")
|
|
|
|
|
|
|
|
|
|
topRegions := db.NewSelect().
|
|
|
|
|
ColumnExpr("region").
|
|
|
|
|
TableExpr("regional_sales").
|
|
|
|
|
Where("total_sales > (SELECT SUM(total_sales) / 10 FROM regional_sales)")
|
|
|
|
|
|
2021-11-27 15:26:58 +01:00
|
|
|
var items map[string]interface{}
|
2021-11-13 12:29:08 +01:00
|
|
|
err := db.NewSelect().
|
|
|
|
|
With("regional_sales", regionalSales).
|
|
|
|
|
With("top_regions", topRegions).
|
|
|
|
|
ColumnExpr("region").
|
|
|
|
|
ColumnExpr("product").
|
|
|
|
|
ColumnExpr("SUM(quantity) AS product_units").
|
|
|
|
|
ColumnExpr("SUM(amount) AS product_sales").
|
|
|
|
|
TableExpr("orders").
|
|
|
|
|
Where("region IN (SELECT region FROM top_regions)").
|
|
|
|
|
GroupExpr("region").
|
|
|
|
|
GroupExpr("product").
|
2021-11-27 15:26:58 +01:00
|
|
|
Scan(ctx, &items)
|
2021-11-13 12:29:08 +01:00
|
|
|
```
|
|
|
|
|
|
|
|
|
|
```sql
|
|
|
|
|
WITH regional_sales AS (
|
|
|
|
|
SELECT region, SUM(amount) AS total_sales
|
|
|
|
|
FROM orders
|
|
|
|
|
GROUP BY region
|
|
|
|
|
), top_regions AS (
|
|
|
|
|
SELECT region
|
|
|
|
|
FROM regional_sales
|
|
|
|
|
WHERE total_sales > (SELECT SUM(total_sales)/10 FROM regional_sales)
|
|
|
|
|
)
|
|
|
|
|
SELECT region,
|
|
|
|
|
product,
|
|
|
|
|
SUM(quantity) AS product_units,
|
|
|
|
|
SUM(amount) AS product_sales
|
|
|
|
|
FROM orders
|
|
|
|
|
WHERE region IN (SELECT region FROM top_regions)
|
|
|
|
|
GROUP BY region, product
|
|
|
|
|
```
|
|
|
|
|
|
2021-11-27 15:26:58 +01:00
|
|
|
And scan results into scalars, structs, maps, slices of structs/maps/scalars.
|
|
|
|
|
|
2021-08-25 15:34:33 +02:00
|
|
|
## Installation
|
|
|
|
|
|
|
|
|
|
```go
|
|
|
|
|
go get github.com/uptrace/bun
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
You also need to install a database/sql driver and the corresponding Bun
|
|
|
|
|
[dialect](https://bun.uptrace.dev/guide/drivers.html).
|
|
|
|
|
|
2021-12-12 15:47:51 +01:00
|
|
|
See [**Getting started**](https://bun.uptrace.dev/guide/getting-started.html) guide and check
|
|
|
|
|
[examples](example).
|
2021-08-25 15:34:33 +02:00
|
|
|
|
|
|
|
|
## Contributors
|
|
|
|
|
|
|
|
|
|
Thanks to all the people who already contributed!
|
|
|
|
|
|
|
|
|
|
<a href="https://github.com/uptrace/bun/graphs/contributors">
|
|
|
|
|
<img src="https://contributors-img.web.app/image?repo=uptrace/bun" />
|
|
|
|
|
</a>
|
