Specify connection pool parameters since that can affect results. GoP…

…G does its own pooling so 🍎 / 🍊.

dbeval.go

@@ -25,7 +25,7 @@ func (Article) TableName() string {
 }
 
 type Implementation interface {
-	Connect(string)
+	Connect(string, time.Duration, int, int)
 	CreateDatabase()
 	DropDatabase()
 	CreateSchema()

dbeval_test.go

@@ -161,6 +161,7 @@ func impls() []Implementation {
 		&PGX{},
 		&PGXStdlib{},
 		&UpperDB{},
+		&UpperDBTrace{},
 		&SQLX{},
 		&Gorm{},
 		&DBR{},
@@ -174,13 +175,13 @@ func impls() []Implementation {
 }
 
 func withTestDB(impl Implementation, f func()) {
-	impl.Connect("sslmode=disable dbname=postgres")
+	impl.Connect("sslmode=disable dbname=postgres", 0, 0, 1)
 	impl.DropDatabase()
 	impl.CreateDatabase()
-	impl.Connect("sslmode=disable dbname=" + testDatabaseName)
+	impl.Connect("sslmode=disable dbname="+testDatabaseName, 0, 40, 40)
 	impl.CreateSchema()
 	defer func() {
-		impl.Connect("sslmode=disable dbname=postgres")
+		impl.Connect("sslmode=disable dbname=postgres", 0, 0, 1)
 		impl.DropDatabase()
 	}()
 	f()

dbr.go

@@ -14,13 +14,16 @@ type DBR struct {
 	db *dbr.Session
 }
 
-func (p *DBR) Connect(ds string) {
+func (p *DBR) Connect(ds string, connLifetime time.Duration, idleConns, openConns int) {
 	if p.db != nil {
 		p.db.Close()
 		p.db = nil
 	}
 	conn, err := dbr.Open("postgres", ds, nil)
 	check(err)
+	conn.SetConnMaxLifetime(connLifetime)
+	conn.SetMaxIdleConns(idleConns)
+	conn.SetMaxOpenConns(openConns)
 	p.db = conn.NewSession(nil)
 }
 

gopg.go

@@ -3,6 +3,8 @@ package dbeval
 import (
 	"os"
 
+	"time"
+
 	"github.com/go-pg/pg"
 	"upper.io/db.v3/postgresql"
 )
@@ -16,7 +18,7 @@ type GoPG struct {
 	db *pg.DB
 }
 
-func (g *GoPG) Connect(ds string) {
+func (g *GoPG) Connect(ds string, connLifetime time.Duration, idleConns, openConns int) {
 	if g.db != nil {
 		check(g.db.Close())
 		g.db = nil
@@ -26,6 +28,7 @@ func (g *GoPG) Connect(ds string) {
 	g.db = pg.Connect(&pg.Options{
 		User:     os.Getenv("USER"), // HACK
 		Database: url.Database,
+		PoolSize: openConns,
 	})
 }
 

gorm.go

@@ -1,6 +1,8 @@
 package dbeval
 
 import (
+	"time"
+
 	"github.com/jinzhu/gorm"
 	_ "github.com/jinzhu/gorm/dialects/postgres"
 )
@@ -12,14 +14,17 @@ type Gorm struct {
 	db *gorm.DB
 }
 
-func (g *Gorm) Connect(ds string) {
+func (g *Gorm) Connect(ds string, connLifetime time.Duration, idleConns, openConns int) {
 	if g.db != nil {
 		check(g.db.Close())
 		g.db = nil
 	}
 	var err error
 	g.db, err = gorm.Open("postgres", ds)
 	check(err)
+	g.db.DB().SetConnMaxLifetime(connLifetime)
+	g.db.DB().SetMaxIdleConns(idleConns)
+	g.db.DB().SetMaxOpenConns(openConns)
 }
 
 func (g *Gorm) CreateDatabase() {

memory.go

@@ -4,6 +4,8 @@ import (
 	"sort"
 	"sync"
 
+	"time"
+
 	_ "github.com/lib/pq"
 )
 
@@ -15,7 +17,7 @@ type Memory struct {
 	articlesByDate []*Article
 }
 
-func (m *Memory) Connect(ds string) {
+func (m *Memory) Connect(ds string, connLifetime time.Duration, idleConns, openConns int) {
 	// Noop
 }
 

pgx.go

@@ -1,20 +1,22 @@
 package dbeval
 
 import (
+	"time"
+
 	"github.com/jackc/pgx"
 )
 
 type PGX struct {
 	db *pgx.ConnPool
 }
 
-func (p *PGX) Connect(ds string) {
+func (p *PGX) Connect(ds string, connLifetime time.Duration, idleConns, openConns int) {
 	if p.db != nil {
 		p.db.Close()
 		p.db = nil
 	}
 	cc, err := pgx.ParseConnectionString(ds)
-	p.db, err = pgx.NewConnPool(pgx.ConnPoolConfig{ConnConfig: cc})
+	p.db, err = pgx.NewConnPool(pgx.ConnPoolConfig{ConnConfig: cc, MaxConnections: openConns})
 	check(err)
 }
 

pgx_stdlib.go

@@ -3,20 +3,25 @@ package dbeval
 import (
 	"database/sql"
 
+	"time"
+
 	_ "github.com/jackc/pgx/stdlib"
 )
 
 type PGXStdlib struct {
 	db *sql.DB
 }
 
-func (p *PGXStdlib) Connect(ds string) {
+func (p *PGXStdlib) Connect(ds string, connLifetime time.Duration, idleConns, openConns int) {
 	if p.db != nil {
 		check(p.db.Close())
 		p.db = nil
 	}
 	var err error
 	p.db, err = sql.Open("pgx", ds)
+	p.db.SetConnMaxLifetime(connLifetime)
+	p.db.SetMaxIdleConns(idleConns)
+	p.db.SetMaxOpenConns(openConns)
 	check(err)
 }
 

pq.go

@@ -2,6 +2,7 @@ package dbeval
 
 import (
 	"database/sql"
+	"time"
 
 	_ "github.com/lib/pq"
 )
@@ -10,13 +11,16 @@ type PQ struct {
 	db *sql.DB
 }
 
-func (p *PQ) Connect(ds string) {
+func (p *PQ) Connect(ds string, connLifetime time.Duration, idleConns, openConns int) {
 	if p.db != nil {
 		check(p.db.Close())
 		p.db = nil
 	}
 	var err error
 	p.db, err = sql.Open("postgres", ds)
+	p.db.SetConnMaxLifetime(connLifetime)
+	p.db.SetMaxIdleConns(idleConns)
+	p.db.SetMaxOpenConns(openConns)
 	check(err)
 }
 

results.txt

@@ -1,82 +1,89 @@
 === RUN   TestImplementations
-=== RUN   TestImplementations/*dbeval.PGX
-=== RUN   TestImplementations/*dbeval.Memory
+=== RUN   TestImplementations/*dbeval.PQ
+=== RUN   TestImplementations/*dbeval.UpperDB
 === RUN   TestImplementations/*dbeval.Gorm
+=== RUN   TestImplementations/*dbeval.PGX
 === RUN   TestImplementations/*dbeval.SQLX
-=== RUN   TestImplementations/*dbeval.PGXStdlib
-=== RUN   TestImplementations/*dbeval.UpperDB
+=== RUN   TestImplementations/*dbeval.UpperDBTrace
+=== RUN   TestImplementations/*dbeval.DBR
 === RUN   TestImplementations/*dbeval.GoPG
+=== RUN   TestImplementations/*dbeval.PGXStdlib
+=== RUN   TestImplementations/*dbeval.Memory
 === RUN   TestImplementations/*dbeval.Xorm
-=== RUN   TestImplementations/*dbeval.DBR
-=== RUN   TestImplementations/*dbeval.PQ
---- PASS: TestImplementations (6.66s)
-    --- PASS: TestImplementations/*dbeval.PGX (0.76s)
-    --- PASS: TestImplementations/*dbeval.Memory (0.00s)
+--- PASS: TestImplementations (7.31s)
+    --- PASS: TestImplementations/*dbeval.PQ (0.79s)
+    --- PASS: TestImplementations/*dbeval.UpperDB (0.76s)
     --- PASS: TestImplementations/*dbeval.Gorm (0.74s)
-    --- PASS: TestImplementations/*dbeval.SQLX (0.74s)
-    --- PASS: TestImplementations/*dbeval.PGXStdlib (0.74s)
-    --- PASS: TestImplementations/*dbeval.UpperDB (0.73s)
+    --- PASS: TestImplementations/*dbeval.PGX (0.70s)
+    --- PASS: TestImplementations/*dbeval.SQLX (0.68s)
+    --- PASS: TestImplementations/*dbeval.UpperDBTrace (0.74s)
+    --- PASS: TestImplementations/*dbeval.DBR (0.70s)
     --- PASS: TestImplementations/*dbeval.GoPG (0.73s)
-    --- PASS: TestImplementations/*dbeval.Xorm (0.73s)
-    --- PASS: TestImplementations/*dbeval.DBR (0.74s)
-    --- PASS: TestImplementations/*dbeval.PQ (0.74s)
+    --- PASS: TestImplementations/*dbeval.PGXStdlib (0.75s)
+    --- PASS: TestImplementations/*dbeval.Memory (0.00s)
+    --- PASS: TestImplementations/*dbeval.Xorm (0.72s)
 goos: darwin
 goarch: amd64
 pkg: github.com/davars/dbeval
-BenchmarkInsert/*dbeval.UpperDB/Authors-4         	    5000	    294905 ns/op	   25122 B/op	    1131 allocs/op
-BenchmarkInsert/*dbeval.Gorm/Authors-4            	    1000	   1089083 ns/op	   37730 B/op	     990 allocs/op
-BenchmarkInsert/*dbeval.PGXStdlib/Authors-4       	    2000	    877015 ns/op	    6232 B/op	     188 allocs/op
-BenchmarkInsert/*dbeval.PGX/Authors-4             	    2000	    784183 ns/op	    4020 B/op	     130 allocs/op
-BenchmarkInsert/*dbeval.SQLX/Authors-4            	    2000	    791268 ns/op	   10173 B/op	     278 allocs/op
-BenchmarkInsert/*dbeval.DBR/Authors-4             	    5000	    264997 ns/op	   12709 B/op	     227 allocs/op
-BenchmarkInsert/*dbeval.PQ/Authors-4              	    2000	    809639 ns/op	    9895 B/op	     296 allocs/op
-BenchmarkInsert/*dbeval.Xorm/Authors-4            	    5000	    245221 ns/op	   13010 B/op	     361 allocs/op
-BenchmarkInsert/*dbeval.Memory/Authors-4          	  100000	     14496 ns/op	    3087 B/op	      69 allocs/op
-BenchmarkInsert/*dbeval.GoPG/Authors-4            	    5000	    240148 ns/op	    2619 B/op	      77 allocs/op
+BenchmarkInsert/*dbeval.DBR/Authors-4         	    5000	    251684 ns/op	   12527 B/op	     226 allocs/op
+BenchmarkInsert/*dbeval.PGX/Authors-4         	    2000	    786266 ns/op	    4016 B/op	     130 allocs/op
+BenchmarkInsert/*dbeval.GoPG/Authors-4        	    5000	    259552 ns/op	    2617 B/op	      77 allocs/op
+BenchmarkInsert/*dbeval.SQLX/Authors-4        	    2000	    919715 ns/op	   10171 B/op	     278 allocs/op
+BenchmarkInsert/*dbeval.UpperDBTrace/Authors-4         	    5000	    285161 ns/op	   24587 B/op	    1103 allocs/op
+BenchmarkInsert/*dbeval.Gorm/Authors-4                 	    1000	   1079819 ns/op	   37687 B/op	     990 allocs/op
+BenchmarkInsert/*dbeval.Memory/Authors-4               	  100000	     14426 ns/op	    3087 B/op	      69 allocs/op
+BenchmarkInsert/*dbeval.Xorm/Authors-4                 	    5000	    231914 ns/op	   12904 B/op	     360 allocs/op
+BenchmarkInsert/*dbeval.PQ/Authors-4                   	    2000	    812191 ns/op	    9859 B/op	     296 allocs/op
+BenchmarkInsert/*dbeval.PGXStdlib/Authors-4            	    2000	    783080 ns/op	    6121 B/op	     187 allocs/op
+BenchmarkInsert/*dbeval.UpperDB/Authors-4              	    5000	    258971 ns/op	   25129 B/op	    1131 allocs/op
 
-BenchmarkInsert/*dbeval.Gorm/Articles-4           	    1000	   1536787 ns/op	  160701 B/op	    2736 allocs/op
-BenchmarkInsert/*dbeval.SQLX/Articles-4           	    1000	   1407391 ns/op	  120569 B/op	    1850 allocs/op
-BenchmarkInsert/*dbeval.Memory/Articles-4         	    2000	   1550498 ns/op	   95887 B/op	    1490 allocs/op
-BenchmarkInsert/*dbeval.GoPG/Articles-4           	    2000	    736848 ns/op	   96997 B/op	    1534 allocs/op
-BenchmarkInsert/*dbeval.DBR/Articles-4            	    1000	   1050217 ns/op	  165671 B/op	    1811 allocs/op
-BenchmarkInsert/*dbeval.UpperDB/Articles-4        	    2000	    785706 ns/op	  169309 B/op	    3128 allocs/op
-BenchmarkInsert/*dbeval.PGX/Articles-4            	    1000	   1200878 ns/op	  103148 B/op	    1573 allocs/op
-BenchmarkInsert/*dbeval.Xorm/Articles-4           	    2000	    833906 ns/op	  157379 B/op	    2057 allocs/op
-BenchmarkInsert/*dbeval.PGXStdlib/Articles-4      	    1000	   1419599 ns/op	  115242 B/op	    1717 allocs/op
-BenchmarkInsert/*dbeval.PQ/Articles-4             	    1000	   1352765 ns/op	  125470 B/op	    1803 allocs/op
+BenchmarkInsert/*dbeval.UpperDB/Articles-4             	    2000	    806020 ns/op	  168245 B/op	    3116 allocs/op
+BenchmarkInsert/*dbeval.GoPG/Articles-4                	    2000	    740819 ns/op	   97123 B/op	    1535 allocs/op
+BenchmarkInsert/*dbeval.UpperDBTrace/Articles-4        	    2000	    845395 ns/op	  158249 B/op	    3058 allocs/op
+BenchmarkInsert/*dbeval.Gorm/Articles-4                	    1000	   1402181 ns/op	  157795 B/op	    2708 allocs/op
+BenchmarkInsert/*dbeval.DBR/Articles-4                 	    2000	    781688 ns/op	  161393 B/op	    1774 allocs/op
+BenchmarkInsert/*dbeval.PQ/Articles-4                  	    1000	   1219049 ns/op	  123693 B/op	    1787 allocs/op
+BenchmarkInsert/*dbeval.Memory/Articles-4              	    2000	   1735386 ns/op	   96030 B/op	    1492 allocs/op
+BenchmarkInsert/*dbeval.PGX/Articles-4                 	    1000	   1266502 ns/op	  103173 B/op	    1574 allocs/op
+BenchmarkInsert/*dbeval.SQLX/Articles-4                	    1000	   1227478 ns/op	  111903 B/op	    1767 allocs/op
+BenchmarkInsert/*dbeval.Xorm/Articles-4                	    2000	    807556 ns/op	  154917 B/op	    2034 allocs/op
+BenchmarkInsert/*dbeval.PGXStdlib/Articles-4           	    1000	   1244095 ns/op	  106162 B/op	    1627 allocs/op
 
-BenchmarkFindAuthorByID/*dbeval.Xorm-4            	   10000	    139851 ns/op	    4864 B/op	     122 allocs/op
-BenchmarkFindAuthorByID/*dbeval.PGXStdlib-4       	   20000	     77873 ns/op	    1600 B/op	      35 allocs/op
-BenchmarkFindAuthorByID/*dbeval.Gorm-4            	   10000	    142232 ns/op	    7117 B/op	     140 allocs/op
-BenchmarkFindAuthorByID/*dbeval.PGX-4             	   20000	     65128 ns/op	     728 B/op	      15 allocs/op
-BenchmarkFindAuthorByID/*dbeval.UpperDB-4         	   20000	     89771 ns/op	    9871 B/op	     448 allocs/op
-BenchmarkFindAuthorByID/*dbeval.Memory-4          	10000000	       139 ns/op	       0 B/op	       0 allocs/op
-BenchmarkFindAuthorByID/*dbeval.SQLX-4            	   20000	     78656 ns/op	    1727 B/op	      38 allocs/op
-BenchmarkFindAuthorByID/*dbeval.PQ-4              	   20000	     72683 ns/op	    1228 B/op	      36 allocs/op
-BenchmarkFindAuthorByID/*dbeval.GoPG-4            	   30000	     42536 ns/op	     741 B/op	      12 allocs/op
-BenchmarkFindAuthorByID/*dbeval.DBR-4             	   20000	     66439 ns/op	    2540 B/op	      48 allocs/op
+BenchmarkFindAuthorByID/*dbeval.UpperDB-4              	   20000	     91888 ns/op	    9871 B/op	     448 allocs/op
+BenchmarkFindAuthorByID/*dbeval.SQLX-4                 	   20000	     71243 ns/op	    1537 B/op	      37 allocs/op
+BenchmarkFindAuthorByID/*dbeval.PGXStdlib-4            	   20000	     72574 ns/op	    1393 B/op	      33 allocs/op
+BenchmarkFindAuthorByID/*dbeval.Gorm-4                 	   20000	    105395 ns/op	    6676 B/op	     137 allocs/op
+BenchmarkFindAuthorByID/*dbeval.DBR-4                  	   30000	     48810 ns/op	    2391 B/op	      47 allocs/op
+BenchmarkFindAuthorByID/*dbeval.Xorm-4                 	   20000	     82831 ns/op	    4384 B/op	     119 allocs/op
+BenchmarkFindAuthorByID/*dbeval.UpperDBTrace-4         	   20000	     90472 ns/op	   10010 B/op	     446 allocs/op
+BenchmarkFindAuthorByID/*dbeval.GoPG-4                 	   30000	     44655 ns/op	     742 B/op	      12 allocs/op
+BenchmarkFindAuthorByID/*dbeval.PQ-4                   	   20000	     73386 ns/op	    1206 B/op	      36 allocs/op
+BenchmarkFindAuthorByID/*dbeval.PGX-4                  	   20000	     66813 ns/op	     727 B/op	      15 allocs/op
+BenchmarkFindAuthorByID/*dbeval.Memory-4               	10000000	       142 ns/op	       0 B/op	       0 allocs/op
 
-BenchmarkFindAuthorByName/*dbeval.DBR-4           	    1000	   2163804 ns/op	  608683 B/op	   13050 allocs/op
-BenchmarkFindAuthorByName/*dbeval.Memory-4        	20000000	        69.8 ns/op	       0 B/op	       0 allocs/op
-BenchmarkFindAuthorByName/*dbeval.PGX-4           	    2000	    947532 ns/op	  110179 B/op	    2033 allocs/op
-BenchmarkFindAuthorByName/*dbeval.Xorm-4          	     500	   2689754 ns/op	  496640 B/op	   19117 allocs/op
-BenchmarkFindAuthorByName/*dbeval.SQLX-4          	    1000	   1293936 ns/op	  134989 B/op	    4052 allocs/op
-BenchmarkFindAuthorByName/*dbeval.PQ-4            	    2000	    965700 ns/op	   95820 B/op	    4043 allocs/op
-BenchmarkFindAuthorByName/*dbeval.Gorm-4          	     500	   3387777 ns/op	 1509212 B/op	   25124 allocs/op
-BenchmarkFindAuthorByName/*dbeval.UpperDB-4       	    1000	   1470707 ns/op	  168565 B/op	    6457 allocs/op
-BenchmarkFindAuthorByName/*dbeval.GoPG-4          	    2000	    885154 ns/op	  103480 B/op	    3026 allocs/op
-BenchmarkFindAuthorByName/*dbeval.PGXStdlib-4     	    2000	   1098553 ns/op	  134790 B/op	    4048 allocs/op
+BenchmarkFindAuthorByName/*dbeval.UpperDBTrace-4       	    1000	   1686364 ns/op	  204480 B/op	    6463 allocs/op
+BenchmarkFindAuthorByName/*dbeval.PGXStdlib-4          	    2000	   1117332 ns/op	  131777 B/op	    4048 allocs/op
+BenchmarkFindAuthorByName/*dbeval.Gorm-4               	     500	   3355942 ns/op	 1507764 B/op	   25124 allocs/op
+BenchmarkFindAuthorByName/*dbeval.UpperDB-4            	    1000	   1510092 ns/op	  167068 B/op	    6457 allocs/op
+BenchmarkFindAuthorByName/*dbeval.PQ-4                 	    2000	   1011644 ns/op	   94323 B/op	    4043 allocs/op
+BenchmarkFindAuthorByName/*dbeval.Xorm-4               	     500	   2838397 ns/op	  495162 B/op	   19117 allocs/op
+BenchmarkFindAuthorByName/*dbeval.Memory-4             	20000000	        74.7 ns/op	       0 B/op	       0 allocs/op
+BenchmarkFindAuthorByName/*dbeval.GoPG-4               	    2000	    945149 ns/op	  101985 B/op	    3026 allocs/op
+BenchmarkFindAuthorByName/*dbeval.DBR-4                	    1000	   2143203 ns/op	  607170 B/op	   13050 allocs/op
+BenchmarkFindAuthorByName/*dbeval.SQLX-4               	    1000	   1302797 ns/op	  131978 B/op	    4052 allocs/op
+BenchmarkFindAuthorByName/*dbeval.PGX-4                	    2000	    948556 ns/op	  107165 B/op	    2033 allocs/op
 
-BenchmarkRecentArticles/*dbeval.Xorm-4            	     200	   7871994 ns/op	 5153138 B/op	   81472 allocs/op
-BenchmarkRecentArticles/*dbeval.SQLX-4            	     500	   3765495 ns/op	 3564950 B/op	   14475 allocs/op
-BenchmarkRecentArticles/*dbeval.Memory-4          	30000000	        42.4 ns/op	       0 B/op	       0 allocs/op
-BenchmarkRecentArticles/*dbeval.UpperDB-4         	     300	   4495267 ns/op	 3511561 B/op	   23769 allocs/op
-BenchmarkRecentArticles/*dbeval.PGXStdlib-4       	     500	   3436592 ns/op	 3564647 B/op	   14471 allocs/op
-BenchmarkRecentArticles/*dbeval.Gorm-4            	     200	   7883202 ns/op	 6740980 B/op	   83462 allocs/op
-BenchmarkRecentArticles/*dbeval.GoPG-4            	     500	   3788599 ns/op	 1833285 B/op	   10030 allocs/op
-BenchmarkRecentArticles/*dbeval.PGX-4             	     500	   3097804 ns/op	 3419331 B/op	    6449 allocs/op
-BenchmarkRecentArticles/*dbeval.DBR-4             	     200	   6270372 ns/op	 4529491 B/op	   47416 allocs/op
-BenchmarkRecentArticles/*dbeval.PQ-4              	     300	   4211477 ns/op	 3310057 B/op	   17421 allocs/op
+BenchmarkRecentArticles/*dbeval.GoPG-4                 	     500	   3568988 ns/op	 1848197 B/op	   10030 allocs/op
+BenchmarkRecentArticles/*dbeval.Xorm-4                 	     200	   8652867 ns/op	 5189707 B/op	   81484 allocs/op
+BenchmarkRecentArticles/*dbeval.Gorm-4                 	     200	  10080032 ns/op	 6777663 B/op	   83474 allocs/op
+BenchmarkRecentArticles/*dbeval.Memory-4               	50000000	        37.3 ns/op	       0 B/op	       0 allocs/op
+BenchmarkRecentArticles/*dbeval.UpperDB-4              	     300	   4502904 ns/op	 3548459 B/op	   23783 allocs/op
+BenchmarkRecentArticles/*dbeval.PQ-4                   	     300	   3784561 ns/op	 3347225 B/op	   17432 allocs/op
+BenchmarkRecentArticles/*dbeval.PGXStdlib-4            	     500	   3794126 ns/op	 3583219 B/op	   14468 allocs/op
+BenchmarkRecentArticles/*dbeval.UpperDBTrace-4         	     300	   4189094 ns/op	 3781044 B/op	   18834 allocs/op
+BenchmarkRecentArticles/*dbeval.PGX-4                  	     500	   3074993 ns/op	 3438335 B/op	    6450 allocs/op
+BenchmarkRecentArticles/*dbeval.SQLX-4                 	     300	   3767424 ns/op	 3583492 B/op	   14472 allocs/op
+BenchmarkRecentArticles/*dbeval.DBR-4                  	     200	   6155176 ns/op	 4566179 B/op	   47429 allocs/op
 
 PASS
-ok  	github.com/davars/dbeval	236.013s
+ok  	github.com/davars/dbeval	263.019s

sqlx.go

@@ -1,6 +1,8 @@
 package dbeval
 
 import (
+	"time"
+
 	_ "github.com/jackc/pgx/stdlib"
 	"github.com/jmoiron/sqlx"
 )
@@ -9,13 +11,16 @@ type SQLX struct {
 	db *sqlx.DB
 }
 
-func (p *SQLX) Connect(ds string) {
+func (p *SQLX) Connect(ds string, connLifetime time.Duration, idleConns, openConns int) {
 	if p.db != nil {
 		check(p.db.Close())
 		p.db = nil
 	}
 	var err error
 	p.db, err = sqlx.Open("pgx", ds)
+	p.db.SetConnMaxLifetime(connLifetime)
+	p.db.SetMaxIdleConns(idleConns)
+	p.db.SetMaxOpenConns(openConns)
 	check(err)
 }