Fast, batch, insertmany construct in go-sqlite3?

I'd like to batch insert many items with the same prepared statement in sqlite3, using go-sqlite3.

I'm looking for something like the mongodb construct for inserting an array of the same type of records, with automatic transaction/batch handling.

I imagine something like the following:

type Rec struct 
 A string
 B string


db, err := sql.Open("sqlite3", "my.db")
checkErr(err)

stmt, err := db.Prepare("INSERT INTO Recs(a, b) values(?,?)")
checkErr(err)

R1 := Rec"A":1,"B":2
R2 := Rec"A":3,"B":4 // in practice, some loop generates these...

Recs := R1,R2

_, err = stmt.ExecMany(Recs)

Does this kind of syntax exist for sqlite?

I'm currently doing the following:

var Recs Rec

batch := 0
for i:=0;i<100000; i++ 
 R := Rec"A":i,"B":i+1 
 Recs = append(Recs, R)
 if (batch % 100) 
 tx, err := db.Begin()
 stmt, err := db.Prepare("INSERT INTO Recs(a, b) values(?,?)")
 for _, r := range Recs 
 _, err = stmt.Exec(r.A, r.B)
 checkErr(err)
 
 err = tx.Commit()
 checkErr(err)
 Recs = Recs[0:0]
 batch = 1
 else 
 batch = batch + 1

but it is super slow, and I keep errorring out with errors like:

panic: database is locked.

edited Nov 14 '18 at 0:02

asked Nov 13 '18 at 21:44

Mittenchops

6,4602265137

add a comment |

I'd like to batch insert many items with the same prepared statement in sqlite3, using go-sqlite3.

I'm looking for something like the mongodb construct for inserting an array of the same type of records, with automatic transaction/batch handling.

I imagine something like the following:

type Rec struct 
 A string
 B string


db, err := sql.Open("sqlite3", "my.db")
checkErr(err)

stmt, err := db.Prepare("INSERT INTO Recs(a, b) values(?,?)")
checkErr(err)

R1 := Rec"A":1,"B":2
R2 := Rec"A":3,"B":4 // in practice, some loop generates these...

Recs := R1,R2

_, err = stmt.ExecMany(Recs)

Does this kind of syntax exist for sqlite?

I'm currently doing the following:

var Recs Rec

batch := 0
for i:=0;i<100000; i++ 
 R := Rec"A":i,"B":i+1 
 Recs = append(Recs, R)
 if (batch % 100) 
 tx, err := db.Begin()
 stmt, err := db.Prepare("INSERT INTO Recs(a, b) values(?,?)")
 for _, r := range Recs 
 _, err = stmt.Exec(r.A, r.B)
 checkErr(err)
 
 err = tx.Commit()
 checkErr(err)
 Recs = Recs[0:0]
 batch = 1
 else 
 batch = batch + 1

but it is super slow, and I keep errorring out with errors like:

panic: database is locked.

edited Nov 14 '18 at 0:02

asked Nov 13 '18 at 21:44

Mittenchops

6,4602265137

add a comment |

I'd like to batch insert many items with the same prepared statement in sqlite3, using go-sqlite3.

I'm looking for something like the mongodb construct for inserting an array of the same type of records, with automatic transaction/batch handling.

I imagine something like the following:

type Rec struct 
 A string
 B string


db, err := sql.Open("sqlite3", "my.db")
checkErr(err)

stmt, err := db.Prepare("INSERT INTO Recs(a, b) values(?,?)")
checkErr(err)

R1 := Rec"A":1,"B":2
R2 := Rec"A":3,"B":4 // in practice, some loop generates these...

Recs := R1,R2

_, err = stmt.ExecMany(Recs)

Does this kind of syntax exist for sqlite?

I'm currently doing the following:

var Recs Rec

batch := 0
for i:=0;i<100000; i++ 
 R := Rec"A":i,"B":i+1 
 Recs = append(Recs, R)
 if (batch % 100) 
 tx, err := db.Begin()
 stmt, err := db.Prepare("INSERT INTO Recs(a, b) values(?,?)")
 for _, r := range Recs 
 _, err = stmt.Exec(r.A, r.B)
 checkErr(err)
 
 err = tx.Commit()
 checkErr(err)
 Recs = Recs[0:0]
 batch = 1
 else 
 batch = batch + 1

but it is super slow, and I keep errorring out with errors like:

panic: database is locked.

edited Nov 14 '18 at 0:02

asked Nov 13 '18 at 21:44

Mittenchops

6,4602265137

I'd like to batch insert many items with the same prepared statement in sqlite3, using go-sqlite3.

I'm looking for something like the mongodb construct for inserting an array of the same type of records, with automatic transaction/batch handling.

I imagine something like the following:

type Rec struct 
 A string
 B string


db, err := sql.Open("sqlite3", "my.db")
checkErr(err)

stmt, err := db.Prepare("INSERT INTO Recs(a, b) values(?,?)")
checkErr(err)

R1 := Rec"A":1,"B":2
R2 := Rec"A":3,"B":4 // in practice, some loop generates these...

Recs := R1,R2

_, err = stmt.ExecMany(Recs)

Does this kind of syntax exist for sqlite?

I'm currently doing the following:

var Recs Rec

batch := 0
for i:=0;i<100000; i++ 
 R := Rec"A":i,"B":i+1 
 Recs = append(Recs, R)
 if (batch % 100) 
 tx, err := db.Begin()
 stmt, err := db.Prepare("INSERT INTO Recs(a, b) values(?,?)")
 for _, r := range Recs 
 _, err = stmt.Exec(r.A, r.B)
 checkErr(err)
 
 err = tx.Commit()
 checkErr(err)
 Recs = Recs[0:0]
 batch = 1
 else 
 batch = batch + 1

but it is super slow, and I keep errorring out with errors like:

panic: database is locked.

database go sqlite3

edited Nov 14 '18 at 0:02

asked Nov 13 '18 at 21:44

Mittenchops

6,4602265137

edited Nov 14 '18 at 0:02

asked Nov 13 '18 at 21:44

Mittenchops

6,4602265137

edited Nov 14 '18 at 0:02

asked Nov 13 '18 at 21:44

Mittenchops

6,4602265137

asked Nov 13 '18 at 21:44

Mittenchops

6,4602265137

asked Nov 13 '18 at 21:44

Mittenchops

6,4602265137

add a comment |

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