Bump deps

vendor/github.com/go-sql-driver/mysql/AUTHORS

@@ -13,6 +13,7 @@
 
 Aaron Hopkins <go-sql-driver at die.net>
 Arne Hormann <arnehormann at gmail.com>
+Asta Xie <xiemengjun at gmail.com>
 Carlos Nieto <jose.carlos at menteslibres.net>
 Chris Moos <chris at tech9computers.com>
 Daniel Nichter <nil at codenode.com>
@@ -31,10 +32,12 @@ Jian Zhen <zhenjl at gmail.com>
 Joshua Prunier <joshua.prunier at gmail.com>
 Julien Lefevre <julien.lefevr at gmail.com>
 Julien Schmidt <go-sql-driver at julienschmidt.com>
+Justin Nuß <nuss.justin at gmail.com>
 Kamil Dziedzic <kamil at klecza.pl>
 Kevin Malachowski <kevin at chowski.com>
 Lennart Rudolph <lrudolph at hmc.edu>
 Leonardo YongUk Kim <dalinaum at gmail.com>
+Lion Yang <lion at aosc.xyz>
 Luca Looz <luca.looz92 at gmail.com>
 Lucas Liu <extrafliu at gmail.com>
 Luke Scott <luke at webconnex.com>

vendor/github.com/go-sql-driver/mysql/connection.go

@@ -272,7 +272,6 @@ func (mc *mysqlConn) Exec(query string, args []driver.Value) (driver.Result, err
 			return nil, err
 		}
 		query = prepared
-		args = nil
 	}
 	mc.affectedRows = 0
 	mc.insertId = 0
@@ -330,7 +329,6 @@ func (mc *mysqlConn) Query(query string, args []driver.Value) (driver.Rows, erro
 			return nil, err
 		}
 		query = prepared
-		args = nil
 	}
 	// Send command
 	err := mc.writeCommandPacketStr(comQuery, query)

vendor/github.com/go-sql-driver/mysql/driver.go

@@ -4,7 +4,7 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this file,
 // You can obtain one at http://mozilla.org/MPL/2.0/.
 
-// Package mysql provides a MySQL driver for Go's database/sql package
+// Package mysql provides a MySQL driver for Go's database/sql package.
 //
 // The driver should be used via the database/sql package:
 //

vendor/github.com/go-sql-driver/mysql/dsn.go

@@ -494,6 +494,10 @@ func parseDSNParams(cfg *Config, params string) (err error) {
 				if boolValue {
 					cfg.TLSConfig = "true"
 					cfg.tls = &tls.Config{}
+					host, _, err := net.SplitHostPort(cfg.Addr)
+					if err == nil {
+						cfg.tls.ServerName = host
+					}
 				} else {
 					cfg.TLSConfig = "false"
 				}

vendor/github.com/go-sql-driver/mysql/infile.go

@@ -147,7 +147,8 @@ func (mc *mysqlConn) handleInFileRequest(name string) (err error) {
 	}
 
 	// send content packets
-	if err == nil {
+	// if packetSize == 0, the Reader contains no data
+	if err == nil && packetSize > 0 {
 		data := make([]byte, 4+packetSize)
 		var n int
 		for err == nil {

vendor/github.com/go-sql-driver/mysql/packets.go

@@ -486,23 +486,24 @@ func (mc *mysqlConn) readResultOK() ([]byte, error) {
 				plugin := string(data[1:pluginEndIndex])
 				cipher := data[pluginEndIndex+1 : len(data)-1]
 
-				if plugin == "mysql_old_password" {
+				switch plugin {
+				case "mysql_old_password":
 					// using old_passwords
 					return cipher, ErrOldPassword
-				} else if plugin == "mysql_clear_password" {
+				case "mysql_clear_password":
 					// using clear text password
 					return cipher, ErrCleartextPassword
-				} else if plugin == "mysql_native_password" {
+				case "mysql_native_password":
 					// using mysql default authentication method
 					return cipher, ErrNativePassword
-				} else {
+				default:
 					return cipher, ErrUnknownPlugin
 				}
-			} else {
-				// https://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::OldAuthSwitchRequest
-				return nil, ErrOldPassword
 			}
 
+			// https://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::OldAuthSwitchRequest
+			return nil, ErrOldPassword
+
 		default: // Error otherwise
 			return nil, mc.handleErrorPacket(data)
 		}
@@ -1187,7 +1188,7 @@ func (rows *binaryRows) readRow(dest []driver.Value) error {
 			continue
 
 		case fieldTypeFloat:
-			dest[i] = float32(math.Float32frombits(binary.LittleEndian.Uint32(data[pos : pos+4])))
+			dest[i] = math.Float32frombits(binary.LittleEndian.Uint32(data[pos : pos+4]))
 			pos += 4
 			continue
 

vendor/github.com/go-sql-driver/mysql/rows.go

@@ -22,8 +22,9 @@ type mysqlField struct {
 }
 
 type resultSet struct {
-	columns []mysqlField
-	done    bool
+	columns     []mysqlField
+	columnNames []string
+	done        bool
 }
 
 type mysqlRows struct {
@@ -33,12 +34,6 @@ type mysqlRows struct {
 
 type binaryRows struct {
 	mysqlRows
-	// stmtCols is a pointer to the statement's cached columns for different
-	// result sets.
-	stmtCols *[][]mysqlField
-	// i is a number of the current result set. It is used to fetch proper
-	// columns from stmtCols.
-	i int
 }
 
 type textRows struct {
@@ -46,6 +41,10 @@ type textRows struct {
 }
 
 func (rows *mysqlRows) Columns() []string {
+	if rows.rs.columnNames != nil {
+		return rows.rs.columnNames
+	}
+
 	columns := make([]string, len(rows.rs.columns))
 	if rows.mc != nil && rows.mc.cfg.ColumnsWithAlias {
 		for i := range columns {
@@ -60,6 +59,8 @@ func (rows *mysqlRows) Columns() []string {
 			columns[i] = rows.rs.columns[i].name
 		}
 	}
+
+	rows.rs.columnNames = columns
 	return columns
 }
 
@@ -132,25 +133,14 @@ func (rows *mysqlRows) nextNotEmptyResultSet() (int, error) {
 	}
 }
 
-func (rows *binaryRows) NextResultSet() (err error) {
+func (rows *binaryRows) NextResultSet() error {
 	resLen, err := rows.nextNotEmptyResultSet()
 	if err != nil {
 		return err
 	}
 
-	// get columns, if not cached, read them and cache them.
-	if rows.i >= len(*rows.stmtCols) {
-		rows.rs.columns, err = rows.mc.readColumns(resLen)
-		*rows.stmtCols = append(*rows.stmtCols, rows.rs.columns)
-	} else {
-		rows.rs.columns = (*rows.stmtCols)[rows.i]
-		if err := rows.mc.readUntilEOF(); err != nil {
-			return err
-		}
-	}
-
-	rows.i++
-	return nil
+	rows.rs.columns, err = rows.mc.readColumns(resLen)
+	return err
 }
 
 func (rows *binaryRows) Next(dest []driver.Value) error {

vendor/github.com/go-sql-driver/mysql/statement.go

@@ -20,7 +20,6 @@ type mysqlStmt struct {
 	mc         *mysqlConn
 	id         uint32
 	paramCount int
-	columns    [][]mysqlField // cached from the first query
 }
 
 func (stmt *mysqlStmt) Close() error {
@@ -109,20 +108,10 @@ func (stmt *mysqlStmt) Query(args []driver.Value) (driver.Rows, error) {
 	}
 
 	rows := new(binaryRows)
-	rows.stmtCols = &stmt.columns
 
 	if resLen > 0 {
 		rows.mc = mc
-		rows.i++
-		// Columns
-		// If not cached, read them and cache them
-		if len(stmt.columns) == 0 {
-			rows.rs.columns, err = mc.readColumns(resLen)
-			stmt.columns = append(stmt.columns, rows.rs.columns)
-		} else {
-			rows.rs.columns = stmt.columns[0]
-			err = mc.readUntilEOF()
-		}
+		rows.rs.columns, err = mc.readColumns(resLen)
 	} else {
 		rows.rs.done = true