40 lines
1,005 B
Go
40 lines
1,005 B
Go
package sqlbuilder
|
|
|
|
import "fmt"
|
|
|
|
func Example() {
|
|
t1 := NewTable(
|
|
"shard1",
|
|
"parent_prefix",
|
|
IntColumn("ns_id", NotNullable),
|
|
IntColumn("hash", NotNullable),
|
|
StrColumn("prefix",
|
|
UTF8,
|
|
UTF8CaseInsensitive,
|
|
NotNullable))
|
|
|
|
t2 := NewTable(
|
|
"shard1",
|
|
"sfj",
|
|
IntColumn("ns_id", NotNullable),
|
|
IntColumn("sjid", NotNullable),
|
|
StrColumn("filename",
|
|
UTF8,
|
|
UTF8CaseInsensitive,
|
|
NotNullable))
|
|
|
|
ns_id1 := t1.C("ns_id")
|
|
prefix := t1.C("prefix")
|
|
ns_id2 := t2.C("ns_id")
|
|
sjid := t2.C("sjid")
|
|
filename := t2.C("filename")
|
|
|
|
in := []int32{1, 2, 3}
|
|
join := t2.LeftJoinOn(t1, Eq(ns_id1, ns_id2))
|
|
q := join.Select(ns_id2, sjid, prefix, filename).Where(
|
|
And(EqL(ns_id2, 456), In(sjid, in)))
|
|
text, _ := q.String()
|
|
fmt.Println(text)
|
|
// Output:
|
|
// SELECT `sfj`.`ns_id`,`sfj`.`sjid`,`parent_prefix`.`prefix`,`sfj`.`filename` FROM `shard1`.`sfj` LEFT JOIN `shard1`.`parent_prefix` ON `parent_prefix`.`ns_id`=`sfj`.`ns_id` WHERE (`sfj`.`ns_id`=456 AND `sfj`.`sjid` IN (1,2,3))
|
|
}
|