Add snowflake support and upgrade gorp dependency to v3.1.0

Author: Tobias Schoknecht

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/Masterminds/sprig/v3 v3.2.3 // indirect
 	github.com/armon/go-radix v1.0.0 // indirect
 	github.com/denisenkom/go-mssqldb v0.9.0
-	github.com/go-gorp/gorp/v3 v3.0.5
+	github.com/go-gorp/gorp/v3 v3.1.0
 	github.com/go-sql-driver/mysql v1.6.0
 	github.com/gobuffalo/packr/v2 v2.8.3
 	github.com/godror/godror v0.24.2

go.sum

@@ -107,8 +107,8 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/go-gorp/gorp/v3 v3.0.5 h1:PUjzYdYu3HBOh8LE+UUmRG2P0IRDak9XMeGNvaeq4Ow=
-github.com/go-gorp/gorp/v3 v3.0.5/go.mod h1:dLEjIyyRNiXvNZ8PSmzpt1GsWAUK8kjVhEpjH8TixEw=
+github.com/go-gorp/gorp/v3 v3.1.0 h1:ItKF/Vbuj31dmV4jxA1qblpSwkl9g1typ24xoe70IGs=
+github.com/go-gorp/gorp/v3 v3.1.0/go.mod h1:dLEjIyyRNiXvNZ8PSmzpt1GsWAUK8kjVhEpjH8TixEw=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=

migrate.go

@@ -196,12 +196,13 @@ func (d OracleDialect) IfTableExists(command, schema, table string) string {
 }
 
 var MigrationDialects = map[string]gorp.Dialect{
-	"sqlite3":  gorp.SqliteDialect{},
-	"postgres": gorp.PostgresDialect{},
-	"mysql":    gorp.MySQLDialect{Engine: "InnoDB", Encoding: "UTF8"},
-	"mssql":    gorp.SqlServerDialect{},
-	"oci8":     OracleDialect{},
-	"godror":   OracleDialect{},
+	"sqlite3":   gorp.SqliteDialect{},
+	"postgres":  gorp.PostgresDialect{},
+	"mysql":     gorp.MySQLDialect{Engine: "InnoDB", Encoding: "UTF8"},
+	"mssql":     gorp.SqlServerDialect{},
+	"oci8":      OracleDialect{},
+	"godror":    OracleDialect{},
+	"snowflake": gorp.SnowflakeDialect{},
 }
 
 type MigrationSource interface {