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id支持其他类型的分片 #196

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20 changes: 17 additions & 3 deletions sharding.go
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Original file line number Diff line number Diff line change
Expand Up @@ -421,7 +421,7 @@ func (s *Sharding) resolve(query string, args ...any) (ftQuery, stQuery, tableNa
var value any
var id int64
var keyFind bool
value, id, keyFind, err = s.nonInsertValue(r.ShardingKey, condition, args...)
value, id, keyFind, err = s.nonInsertValue(r, condition, args...)
if err != nil {
return
}
Expand Down Expand Up @@ -501,7 +501,7 @@ func (s *Sharding) insertValue(key string, names []*sqlparser.Ident, exprs []sql
return
}

func (s *Sharding) nonInsertValue(key string, condition sqlparser.Expr, args ...any) (value any, id int64, keyFind bool, err error) {
func (s *Sharding) nonInsertValue(r Config, condition sqlparser.Expr, args ...any) (value any, id int64, keyFind bool, err error) {
err = sqlparser.Walk(sqlparser.VisitFunc(func(node sqlparser.Node) error {
if n, ok := node.(*sqlparser.BinaryExpr); ok {
x, ok := n.X.(*sqlparser.Ident)
Expand All @@ -512,7 +512,7 @@ func (s *Sharding) nonInsertValue(key string, condition sqlparser.Expr, args ...
}
}
if ok {
if x.Name == key && n.Op == sqlparser.EQ {
if x.Name == r.ShardingKey && n.Op == sqlparser.EQ {
keyFind = true
switch expr := n.Y.(type) {
case *sqlparser.BindExpr:
Expand All @@ -529,12 +529,26 @@ func (s *Sharding) nonInsertValue(key string, condition sqlparser.Expr, args ...
switch expr := n.Y.(type) {
case *sqlparser.BindExpr:
v := args[expr.Pos]
if r.ShardingAlgorithm != nil {
keyFind = true
if value == nil {
value = v
}
return nil
}
var ok bool
if id, ok = v.(int64); !ok {
return fmt.Errorf("ID should be int64 type")
}
case *sqlparser.NumberLit:
id, err = strconv.ParseInt(expr.Value, 10, 64)
if r.ShardingAlgorithm != nil {
keyFind = true
if value == nil {
value = id
}
return nil
}
if err != nil {
return err
}
Expand Down
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