Update Geth to 1.9.0

pkg/core/block.go

@@ -29,7 +29,7 @@ type Block struct {
 	Number       int64  `db:"number"`
 	ParentHash   string `db:"parent_hash"`
 	Size         string `db:"size"`
-	Time         int64  `db:"time"`
+	Time         uint64 `db:"time"`
 	Transactions []TransactionModel
 	UncleHash    string `db:"uncle_hash"`
 	UnclesReward string `db:"uncles_reward"`

pkg/core/header.go

@@ -42,7 +42,7 @@ type POAHeader struct {
 	Number      *hexutil.Big   `json:"number"           gencodec:"required"`
 	GasLimit    hexutil.Uint64 `json:"gasLimit"         gencodec:"required"`
 	GasUsed     hexutil.Uint64 `json:"gasUsed"          gencodec:"required"`
-	Time        *hexutil.Big   `json:"timestamp"        gencodec:"required"`
+	Time        hexutil.Uint64 `json:"timestamp"        gencodec:"required"`
 	Extra       hexutil.Bytes  `json:"extraData"        gencodec:"required"`
 	Hash        common.Hash    `json:"hash"`
 }