Simple and performant client for PostgreSQL, MySQL, and SQLite

Status: API freeze (stable release). Note that all sub-packages (mainly extra/* packages) are not part of the API freeze and are developed independently. You can think of them as of 3rd party packages that share one repo with the core.

Main features are:

Works with PostgreSQL, MySQL (including MariaDB), SQLite.
Selecting into scalars, structs, maps, slices of maps/structs/scalars.
Bulk inserts.
Bulk updates using common table expressions.
Bulk deletes.
Fixtures.
Migrations.
Soft deletes.

Resources:

Projects using Bun:

gotosocial - Golang fediverse server.
qvalet listens for HTTP requests and executes commands on demand.
RealWorld app

Benchmark

https://github.com/davars/dbeval

results

BenchmarkInsert
BenchmarkInsert/*dbeval.Memory/Authors
BenchmarkInsert/*dbeval.Memory/Authors-4         	   84450	     12104 ns/op	    2623 B/op	      70 allocs/op
BenchmarkInsert/*dbeval.Xorm/Authors
BenchmarkInsert/*dbeval.Xorm/Authors-4           	    7291	    153505 ns/op	    9024 B/op	     311 allocs/op
BenchmarkInsert/*dbeval.UpperDB/Authors
BenchmarkInsert/*dbeval.UpperDB/Authors-4        	    4608	    223672 ns/op	   24160 B/op	    1100 allocs/op
BenchmarkInsert/*dbeval.Bun/Authors
BenchmarkInsert/*dbeval.Bun/Authors-4            	    6034	    186439 ns/op	    6818 B/op	      80 allocs/op
BenchmarkInsert/*dbeval.PQ/Authors
BenchmarkInsert/*dbeval.PQ/Authors-4             	    1141	    907494 ns/op	    6487 B/op	     193 allocs/op
BenchmarkInsert/*dbeval.SQLX/Authors
BenchmarkInsert/*dbeval.SQLX/Authors-4           	    1165	    916987 ns/op	   10089 B/op	     271 allocs/op
BenchmarkInsert/*dbeval.Ozzo/Authors
BenchmarkInsert/*dbeval.Ozzo/Authors-4           	    1105	   1058082 ns/op	   27826 B/op	     588 allocs/op
BenchmarkInsert/*dbeval.PGXStdlib/Authors
BenchmarkInsert/*dbeval.PGXStdlib/Authors-4      	    1228	    900207 ns/op	    6032 B/op	     180 allocs/op
BenchmarkInsert/*dbeval.Gorm/Authors
BenchmarkInsert/*dbeval.Gorm/Authors-4           	     946	   1184285 ns/op	   35634 B/op	     918 allocs/op
BenchmarkInsert/*dbeval.PGX/Authors
BenchmarkInsert/*dbeval.PGX/Authors-4            	    1116	    923728 ns/op	    3839 B/op	     130 allocs/op
BenchmarkInsert/*dbeval.DBR/Authors
BenchmarkInsert/*dbeval.DBR/Authors-4            	    5800	    183982 ns/op	    8646 B/op	     230 allocs/op
BenchmarkInsert/*dbeval.GoPG/Authors
BenchmarkInsert/*dbeval.GoPG/Authors-4           	    6110	    173923 ns/op	    2906 B/op	      87 allocs/op

BenchmarkInsert/*dbeval.DBR/Articles
BenchmarkInsert/*dbeval.DBR/Articles-4           	    1706	    684466 ns/op	  133346 B/op	    1614 allocs/op
BenchmarkInsert/*dbeval.PQ/Articles
BenchmarkInsert/*dbeval.PQ/Articles-4            	     884	   1249791 ns/op	  100403 B/op	    1491 allocs/op
BenchmarkInsert/*dbeval.PGX/Articles
BenchmarkInsert/*dbeval.PGX/Articles-4           	     916	   1288143 ns/op	   83539 B/op	    1392 allocs/op
BenchmarkInsert/*dbeval.GoPG/Articles
BenchmarkInsert/*dbeval.GoPG/Articles-4          	    1726	    622639 ns/op	   78638 B/op	    1359 allocs/op
BenchmarkInsert/*dbeval.SQLX/Articles
BenchmarkInsert/*dbeval.SQLX/Articles-4          	     860	   1262599 ns/op	   92030 B/op	    1574 allocs/op
BenchmarkInsert/*dbeval.Gorm/Articles
BenchmarkInsert/*dbeval.Gorm/Articles-4          	     782	   1421550 ns/op	  136534 B/op	    2411 allocs/op
BenchmarkInsert/*dbeval.PGXStdlib/Articles
BenchmarkInsert/*dbeval.PGXStdlib/Articles-4     	     938	   1230576 ns/op	   86743 B/op	    1441 allocs/op
BenchmarkInsert/*dbeval.Bun/Articles
BenchmarkInsert/*dbeval.Bun/Articles-4           	    1843	    626681 ns/op	  101610 B/op	    1323 allocs/op
BenchmarkInsert/*dbeval.Xorm/Articles
BenchmarkInsert/*dbeval.Xorm/Articles-4          	    1677	    650244 ns/op	  126677 B/op	    1752 allocs/op
BenchmarkInsert/*dbeval.Memory/Articles
BenchmarkInsert/*dbeval.Memory/Articles-4        	    1988	   1223308 ns/op	   77576 B/op	    1310 allocs/op
BenchmarkInsert/*dbeval.UpperDB/Articles
BenchmarkInsert/*dbeval.UpperDB/Articles-4       	    1696	    687130 ns/op	  139680 B/op	    2862 allocs/op
BenchmarkInsert/*dbeval.Ozzo/Articles
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

https://github.com/frederikhors/orm-benchmark

results

  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

Why another database client?

So you can elegantly write complex queries:

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)")

var items map[string]interface{}
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").
	Scan(ctx, &items)

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

And scan results into scalars, structs, maps, slices of structs/maps/scalars.

Installation

go get github.com/uptrace/bun

You also need to install a database/sql driver and the corresponding Bun dialect.

See Getting started guide and check examples.

Contributors

Thanks to all the people who already contributed!

16 KiB Raw Blame History

Simple and performant client for PostgreSQL, MySQL, and SQLite

Benchmark

Why another database client?

Installation

Contributors

16 KiB

Raw Blame History