For investigation later:

--------

From: Vadik Vygonets
to: golang-nuts 

Merry solstice, List!

Linux, amd64.  When reading a blob from sqlite3 using (*Row)Scan(),
the first 8 bytes get damaged in transit.  (*Rows)Scan() works
though.  I didn't test other drivers.

Test program:

package main

import (
       "exp/sql"
       "fmt"
       _ "github.com/mattn/go-sqlite3"
)

var blob = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15}

func main() {
       db, _ := sql.Open("sqlite3", "foo.db")
       db.Exec("create table foo (id integer primary key, bar
blob[16])")
       db.Exec("insert or replace into foo (id, bar) values(?,?)", 0,
blob)
       b := make([]byte, 16)
       db.QueryRow("select bar from foo where id = ?", 0).Scan(&b)
       fmt.Printf("%x\n", b)
}

Output looks something like this (somewhat different number every
time):
b09c7a030000000008090a0b0c0d0e0f

Long story short, (*Row)Scan() calls (*Rows /*sic*/ )Close(), which
results in C.sqlite3_finalize(), which is where the damage happens (I
didn't look inside).  It seems like the bug is in the definition of
exp/sql API, but I don't know enough about promises the driver should
make to tell for sure.

But don't let it distract you from drinking gluhwein, ok?