diff --git a/docs/reference/config.md b/docs/reference/config.md
index 07f5b73bcf..842df99cf6 100644
--- a/docs/reference/config.md
+++ b/docs/reference/config.md
@@ -20,6 +20,8 @@ packages:
     emit_result_struct_pointers: false
     emit_params_struct_pointers: false
     emit_methods_with_db_argument: false
+    emit_enum_valid_method: false
+    emit_all_enum_values: false
     json_tags_case_style: "camel"
     output_db_file_name: "db.go"
     output_models_file_name: "models.go"
@@ -60,6 +62,12 @@ Each package document has the following keys:
   - If true, parameters are passed as pointers to structs. Defaults to `false`.
 - `emit_methods_with_db_argument`:
   - If true, generated methods will accept a DBTX argument instead of storing a DBTX on the `*Queries` struct. Defaults to `false`.
+- `emit_enum_valid_method`:
+  - If true, generate a Valid method on enum types,
+    indicating whether a string is a valid enum value.
+- `emit_all_enum_values`:
+  - If true, emit a function per enum type
+    that returns all valid enum values.
 - `json_tags_case_style`:
   - `camel` for camelCase, `pascal` for PascalCase, `snake` for snake_case or `none` to use the column name in the DB. Defaults to `none`.
 - `output_db_file_name`:
diff --git a/internal/cmd/shim.go b/internal/cmd/shim.go
index 8e864741e8..946e6d338c 100644
--- a/internal/cmd/shim.go
+++ b/internal/cmd/shim.go
@@ -86,6 +86,8 @@ func pluginGoCode(s config.SQLGo) *plugin.GoCode {
 		EmitResultStructPointers:  s.EmitResultStructPointers,
 		EmitParamsStructPointers:  s.EmitParamsStructPointers,
 		EmitMethodsWithDbArgument: s.EmitMethodsWithDBArgument,
+		EmitEnumValidMethod:       s.EmitEnumValidMethod,
+		EmitAllEnumValues:         s.EmitAllEnumValues,
 		JsonTagsCaseStyle:         s.JSONTagsCaseStyle,
 		Package:                   s.Package,
 		Out:                       s.Out,
diff --git a/internal/codegen/golang/gen.go b/internal/codegen/golang/gen.go
index f18c331615..eb21c06875 100644
--- a/internal/codegen/golang/gen.go
+++ b/internal/codegen/golang/gen.go
@@ -32,6 +32,8 @@ type tmplCtx struct {
 	EmitInterface             bool
 	EmitEmptySlices           bool
 	EmitMethodsWithDBArgument bool
+	EmitEnumValidMethod       bool
+	EmitAllEnumValues         bool
 	UsesCopyFrom              bool
 	UsesBatch                 bool
 }
@@ -84,6 +86,8 @@ func generate(req *plugin.CodeGenRequest, enums []Enum, structs []Struct, querie
 		EmitPreparedQueries:       golang.EmitPreparedQueries,
 		EmitEmptySlices:           golang.EmitEmptySlices,
 		EmitMethodsWithDBArgument: golang.EmitMethodsWithDbArgument,
+		EmitEnumValidMethod:       golang.EmitEnumValidMethod,
+		EmitAllEnumValues:         golang.EmitAllEnumValues,
 		UsesCopyFrom:              usesCopyFrom(queries),
 		UsesBatch:                 usesBatch(queries),
 		SQLPackage:                SQLPackageFromString(golang.SqlPackage),
diff --git a/internal/codegen/golang/templates/template.tmpl b/internal/codegen/golang/templates/template.tmpl
index 5af2566840..9f8d0d29db 100644
--- a/internal/codegen/golang/templates/template.tmpl
+++ b/internal/codegen/golang/templates/template.tmpl
@@ -86,6 +86,23 @@ func (e *{{.Name}}) Scan(src interface{}) error {
 	}
 	return nil
 }
+
+{{ if $.EmitEnumValidMethod }}
+func (e {{.Name}}) Valid() bool {
+  switch e {
+  case {{ range $idx, $name := .Constants }}{{ if ne $idx 0 }},{{ "\n" }}{{ end }}{{ .Name }}{{ end }}:
+    return true
+  }
+  return false
+}
+{{ end }}
+
+{{ if $.EmitAllEnumValues }}
+func All{{ .Name }}Values() []{{ .Name }} {
+	return []{{ .Name }}{ {{ range .Constants}}{{ "\n" }}{{ .Name }},{{ end }}
+	}
+}
+{{ end }}
 {{end}}
 
 {{range .Structs}}
diff --git a/internal/config/config.go b/internal/config/config.go
index bbb4729880..35350ba562 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -128,6 +128,8 @@ type SQLGo struct {
 	EmitResultStructPointers  bool              `json:"emit_result_struct_pointers" yaml:"emit_result_struct_pointers"`
 	EmitParamsStructPointers  bool              `json:"emit_params_struct_pointers" yaml:"emit_params_struct_pointers"`
 	EmitMethodsWithDBArgument bool              `json:"emit_methods_with_db_argument,omitempty" yaml:"emit_methods_with_db_argument"`
+	EmitEnumValidMethod       bool              `json:"emit_enum_valid_method,omitempty" yaml:"emit_enum_valid_method"`
+	EmitAllEnumValues         bool              `json:"emit_all_enum_values,omitempty" yaml:"emit_all_enum_values"`
 	JSONTagsCaseStyle         string            `json:"json_tags_case_style,omitempty" yaml:"json_tags_case_style"`
 	Package                   string            `json:"package" yaml:"package"`
 	Out                       string            `json:"out" yaml:"out"`
diff --git a/internal/config/v_one.go b/internal/config/v_one.go
index 5b357255bc..5771971295 100644
--- a/internal/config/v_one.go
+++ b/internal/config/v_one.go
@@ -32,6 +32,8 @@ type v1PackageSettings struct {
 	EmitResultStructPointers  bool       `json:"emit_result_struct_pointers" yaml:"emit_result_struct_pointers"`
 	EmitParamsStructPointers  bool       `json:"emit_params_struct_pointers" yaml:"emit_params_struct_pointers"`
 	EmitMethodsWithDBArgument bool       `json:"emit_methods_with_db_argument" yaml:"emit_methods_with_db_argument"`
+	EmitEnumValidMethod       bool       `json:"emit_enum_valid_method,omitempty" yaml:"emit_enum_valid_method"`
+	EmitAllEnumValues         bool       `json:"emit_all_enum_values,omitempty" yaml:"emit_all_enum_values"`
 	JSONTagsCaseStyle         string     `json:"json_tags_case_style,omitempty" yaml:"json_tags_case_style"`
 	SQLPackage                string     `json:"sql_package" yaml:"sql_package"`
 	Overrides                 []Override `json:"overrides" yaml:"overrides"`
@@ -126,6 +128,8 @@ func (c *V1GenerateSettings) Translate() Config {
 					EmitResultStructPointers:  pkg.EmitResultStructPointers,
 					EmitParamsStructPointers:  pkg.EmitParamsStructPointers,
 					EmitMethodsWithDBArgument: pkg.EmitMethodsWithDBArgument,
+					EmitEnumValidMethod:       pkg.EmitEnumValidMethod,
+					EmitAllEnumValues:         pkg.EmitAllEnumValues,
 					Package:                   pkg.Name,
 					Out:                       pkg.Path,
 					SQLPackage:                pkg.SQLPackage,
diff --git a/internal/endtoend/testdata/codegen_json/gen/codegen_request.json b/internal/endtoend/testdata/codegen_json/gen/codegen_request.json
index 0d7657e0d7..36239b3913 100644
--- a/internal/endtoend/testdata/codegen_json/gen/codegen_request.json
+++ b/internal/endtoend/testdata/codegen_json/gen/codegen_request.json
@@ -41,7 +41,9 @@
       "output_db_file_name": "",
       "output_models_file_name": "",
       "output_querier_file_name": "",
-      "output_files_suffix": ""
+      "output_files_suffix": "",
+      "emit_enum_valid_method": false,
+      "emit_all_enum_values": false
     },
     "json": {
       "out": "gen",
diff --git a/internal/endtoend/testdata/emit_enum_valid_and_values/go/db.go b/internal/endtoend/testdata/emit_enum_valid_and_values/go/db.go
new file mode 100644
index 0000000000..b0157bd009
--- /dev/null
+++ b/internal/endtoend/testdata/emit_enum_valid_and_values/go/db.go
@@ -0,0 +1,32 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.13.0
+
+package querytest
+
+import (
+	"context"
+
+	"github.com/jackc/pgconn"
+	"github.com/jackc/pgx/v4"
+)
+
+type DBTX interface {
+	Exec(context.Context, string, ...interface{}) (pgconn.CommandTag, error)
+	Query(context.Context, string, ...interface{}) (pgx.Rows, error)
+	QueryRow(context.Context, string, ...interface{}) pgx.Row
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx pgx.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}
diff --git a/internal/endtoend/testdata/emit_enum_valid_and_values/go/models.go b/internal/endtoend/testdata/emit_enum_valid_and_values/go/models.go
new file mode 100644
index 0000000000..f66c75d54b
--- /dev/null
+++ b/internal/endtoend/testdata/emit_enum_valid_and_values/go/models.go
@@ -0,0 +1,52 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.13.0
+
+package querytest
+
+import (
+	"fmt"
+)
+
+type IPProtocol string
+
+const (
+	IPProtocolTCP  IPProtocol = "tcp"
+	IpProtocolIp   IPProtocol = "ip"
+	IpProtocolIcmp IPProtocol = "icmp"
+)
+
+func (e *IPProtocol) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = IPProtocol(s)
+	case string:
+		*e = IPProtocol(s)
+	default:
+		return fmt.Errorf("unsupported scan type for IPProtocol: %T", src)
+	}
+	return nil
+}
+
+func (e IPProtocol) Valid() bool {
+	switch e {
+	case IPProtocolTCP,
+		IpProtocolIp,
+		IpProtocolIcmp:
+		return true
+	}
+	return false
+}
+
+func AllIPProtocolValues() []IPProtocol {
+	return []IPProtocol{
+		IPProtocolTCP,
+		IpProtocolIp,
+		IpProtocolIcmp,
+	}
+}
+
+type BarNew struct {
+	IDNew int32
+	IpOld IPProtocol
+}
diff --git a/internal/endtoend/testdata/emit_enum_valid_and_values/go/query.sql.go b/internal/endtoend/testdata/emit_enum_valid_and_values/go/query.sql.go
new file mode 100644
index 0000000000..79d10b44cd
--- /dev/null
+++ b/internal/endtoend/testdata/emit_enum_valid_and_values/go/query.sql.go
@@ -0,0 +1,70 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.13.0
+// source: query.sql
+
+package querytest
+
+import (
+	"context"
+)
+
+const listBar = `-- name: ListBar :many
+SELECT id_old, ip_old FROM bar_old
+`
+
+func (q *Queries) ListBar(ctx context.Context) ([]BarNew, error) {
+	rows, err := q.db.Query(ctx, listBar)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []BarNew
+	for rows.Next() {
+		var i BarNew
+		if err := rows.Scan(&i.IDNew, &i.IpOld); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const listFoo = `-- name: ListFoo :many
+SELECT id_old as foo_old, id_old as baz_old
+FROM bar_old
+WHERE ip_old = $1 AND id_old = $2
+`
+
+type ListFooParams struct {
+	IpOld IPProtocol
+	IDNew int32
+}
+
+type ListFooRow struct {
+	FooNew int32
+	BazOld int32
+}
+
+func (q *Queries) ListFoo(ctx context.Context, arg ListFooParams) ([]ListFooRow, error) {
+	rows, err := q.db.Query(ctx, listFoo, arg.IpOld, arg.IDNew)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []ListFooRow
+	for rows.Next() {
+		var i ListFooRow
+		if err := rows.Scan(&i.FooNew, &i.BazOld); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
diff --git a/internal/endtoend/testdata/emit_enum_valid_and_values/query.sql b/internal/endtoend/testdata/emit_enum_valid_and_values/query.sql
new file mode 100644
index 0000000000..4828b5a815
--- /dev/null
+++ b/internal/endtoend/testdata/emit_enum_valid_and_values/query.sql
@@ -0,0 +1,12 @@
+CREATE TYPE ip_protocol AS enum ('tcp', 'ip', 'icmp');
+
+CREATE TABLE bar_old (id_old serial not null, ip_old ip_protocol NOT NULL);
+
+-- name: ListFoo :many
+SELECT id_old as foo_old, id_old as baz_old
+FROM bar_old
+WHERE ip_old = $1 AND id_old = $2;
+
+-- name: ListBar :many
+SELECT * FROM bar_old;
+
diff --git a/internal/endtoend/testdata/emit_enum_valid_and_values/sqlc.json b/internal/endtoend/testdata/emit_enum_valid_and_values/sqlc.json
new file mode 100644
index 0000000000..740c12c5e5
--- /dev/null
+++ b/internal/endtoend/testdata/emit_enum_valid_and_values/sqlc.json
@@ -0,0 +1,22 @@
+{
+  "version": "1",
+  "packages": [
+    {
+      "path": "go",
+      "engine": "postgresql",
+      "sql_package": "pgx/v4",
+      "name": "querytest",
+      "schema": "query.sql",
+      "queries": "query.sql",
+      "emit_enum_valid_method": true,
+      "emit_all_enum_values": true
+    }
+  ],
+  "rename": {
+    "id_old": "IDNew",
+    "bar_old": "BarNew",
+    "foo_old": "FooNew",
+    "ip_protocol": "IPProtocol",
+    "ip_protocol_tcp": "IPProtocolTCP"
+  }
+}
diff --git a/internal/plugin/codegen.pb.go b/internal/plugin/codegen.pb.go
index e0cde33cbd..e28a4e90b9 100644
--- a/internal/plugin/codegen.pb.go
+++ b/internal/plugin/codegen.pb.go
@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
+// 	protoc-gen-go v1.28.0
 // 	protoc        v3.19.4
 // source: plugin/codegen.proto
 
@@ -601,6 +601,8 @@ type GoCode struct {
 	OutputModelsFileName      string `protobuf:"bytes,16,opt,name=output_models_file_name,json=outputModelsFileName,proto3" json:"output_models_file_name,omitempty"`
 	OutputQuerierFileName     string `protobuf:"bytes,17,opt,name=output_querier_file_name,json=outputQuerierFileName,proto3" json:"output_querier_file_name,omitempty"`
 	OutputFilesSuffix         string `protobuf:"bytes,18,opt,name=output_files_suffix,json=outputFilesSuffix,proto3" json:"output_files_suffix,omitempty"`
+	EmitEnumValidMethod       bool   `protobuf:"varint,19,opt,name=emit_enum_valid_method,json=emitEnumValidMethod,proto3" json:"emit_enum_valid_method,omitempty"`
+	EmitAllEnumValues         bool   `protobuf:"varint,20,opt,name=emit_all_enum_values,json=emitAllEnumValues,proto3" json:"emit_all_enum_values,omitempty"`
 }
 
 func (x *GoCode) Reset() {
@@ -761,6 +763,20 @@ func (x *GoCode) GetOutputFilesSuffix() string {
 	return ""
 }
 
+func (x *GoCode) GetEmitEnumValidMethod() bool {
+	if x != nil {
+		return x.EmitEnumValidMethod
+	}
+	return false
+}
+
+func (x *GoCode) GetEmitAllEnumValues() bool {
+	if x != nil {
+		return x.EmitAllEnumValues
+	}
+	return false
+}
+
 type JSONCode struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1702,7 +1718,7 @@ var file_plugin_codegen_proto_rawDesc = []byte{
 	0x74, 0x45, 0x78, 0x61, 0x63, 0x74, 0x54, 0x61, 0x62, 0x6c, 0x65, 0x4e, 0x61, 0x6d, 0x65, 0x73,
 	0x12, 0x18, 0x0a, 0x07, 0x70, 0x61, 0x63, 0x6b, 0x61, 0x67, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28,
 	0x09, 0x52, 0x07, 0x70, 0x61, 0x63, 0x6b, 0x61, 0x67, 0x65, 0x12, 0x10, 0x0a, 0x03, 0x6f, 0x75,
-	0x74, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6f, 0x75, 0x74, 0x22, 0xcd, 0x06, 0x0a,
+	0x74, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6f, 0x75, 0x74, 0x22, 0xb3, 0x07, 0x0a,
 	0x06, 0x47, 0x6f, 0x43, 0x6f, 0x64, 0x65, 0x12, 0x25, 0x0a, 0x0e, 0x65, 0x6d, 0x69, 0x74, 0x5f,
 	0x69, 0x6e, 0x74, 0x65, 0x72, 0x66, 0x61, 0x63, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x08, 0x52,
 	0x0d, 0x65, 0x6d, 0x69, 0x74, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x66, 0x61, 0x63, 0x65, 0x12, 0x24,
@@ -1755,115 +1771,121 @@ var file_plugin_codegen_proto_rawDesc = []byte{
 	0x72, 0x69, 0x65, 0x72, 0x46, 0x69, 0x6c, 0x65, 0x4e, 0x61, 0x6d, 0x65, 0x12, 0x2e, 0x0a, 0x13,
 	0x6f, 0x75, 0x74, 0x70, 0x75, 0x74, 0x5f, 0x66, 0x69, 0x6c, 0x65, 0x73, 0x5f, 0x73, 0x75, 0x66,
 	0x66, 0x69, 0x78, 0x18, 0x12, 0x20, 0x01, 0x28, 0x09, 0x52, 0x11, 0x6f, 0x75, 0x74, 0x70, 0x75,
-	0x74, 0x46, 0x69, 0x6c, 0x65, 0x73, 0x53, 0x75, 0x66, 0x66, 0x69, 0x78, 0x22, 0x34, 0x0a, 0x08,
-	0x4a, 0x53, 0x4f, 0x4e, 0x43, 0x6f, 0x64, 0x65, 0x12, 0x10, 0x0a, 0x03, 0x6f, 0x75, 0x74, 0x18,
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+	0x74, 0x46, 0x69, 0x6c, 0x65, 0x73, 0x53, 0x75, 0x66, 0x66, 0x69, 0x78, 0x12, 0x33, 0x0a, 0x16,
+	0x65, 0x6d, 0x69, 0x74, 0x5f, 0x65, 0x6e, 0x75, 0x6d, 0x5f, 0x76, 0x61, 0x6c, 0x69, 0x64, 0x5f,
+	0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x18, 0x13, 0x20, 0x01, 0x28, 0x08, 0x52, 0x13, 0x65, 0x6d,
+	0x69, 0x74, 0x45, 0x6e, 0x75, 0x6d, 0x56, 0x61, 0x6c, 0x69, 0x64, 0x4d, 0x65, 0x74, 0x68, 0x6f,
+	0x64, 0x12, 0x2f, 0x0a, 0x14, 0x65, 0x6d, 0x69, 0x74, 0x5f, 0x61, 0x6c, 0x6c, 0x5f, 0x65, 0x6e,
+	0x75, 0x6d, 0x5f, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x73, 0x18, 0x14, 0x20, 0x01, 0x28, 0x08, 0x52,
+	0x11, 0x65, 0x6d, 0x69, 0x74, 0x41, 0x6c, 0x6c, 0x45, 0x6e, 0x75, 0x6d, 0x56, 0x61, 0x6c, 0x75,
+	0x65, 0x73, 0x22, 0x34, 0x0a, 0x08, 0x4a, 0x53, 0x4f, 0x4e, 0x43, 0x6f, 0x64, 0x65, 0x12, 0x10,
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+	0x12, 0x16, 0x0a, 0x06, 0x69, 0x6e, 0x64, 0x65, 0x6e, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09,
+	0x52, 0x06, 0x69, 0x6e, 0x64, 0x65, 0x6e, 0x74, 0x22, 0x88, 0x01, 0x0a, 0x07, 0x43, 0x61, 0x74,
+	0x61, 0x6c, 0x6f, 0x67, 0x12, 0x18, 0x0a, 0x07, 0x63, 0x6f, 0x6d, 0x6d, 0x65, 0x6e, 0x74, 0x18,
+	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x63, 0x6f, 0x6d, 0x6d, 0x65, 0x6e, 0x74, 0x12, 0x25,
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+	0x63, 0x68, 0x65, 0x6d, 0x61, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x03, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x28, 0x0a, 0x07, 0x73, 0x63, 0x68,
+	0x65, 0x6d, 0x61, 0x73, 0x18, 0x04, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x0e, 0x2e, 0x70, 0x6c, 0x75,
+	0x67, 0x69, 0x6e, 0x2e, 0x53, 0x63, 0x68, 0x65, 0x6d, 0x61, 0x52, 0x07, 0x73, 0x63, 0x68, 0x65,
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 }
 
 var (
diff --git a/internal/plugin/codegen_vtproto.pb.go b/internal/plugin/codegen_vtproto.pb.go
index 88792da3e5..0b70319cb4 100644
--- a/internal/plugin/codegen_vtproto.pb.go
+++ b/internal/plugin/codegen_vtproto.pb.go
@@ -1,5 +1,5 @@
 // Code generated by protoc-gen-go-vtproto. DO NOT EDIT.
-// protoc-gen-go-vtproto version: v0.2.0
+// protoc-gen-go-vtproto version: v0.3.0
 // source: plugin/codegen.proto
 
 package plugin
@@ -587,6 +587,30 @@ func (m *GoCode) MarshalToSizedBufferVT(dAtA []byte) (int, error) {
 		i -= len(m.unknownFields)
 		copy(dAtA[i:], m.unknownFields)
 	}
+	if m.EmitAllEnumValues {
+		i--
+		if m.EmitAllEnumValues {
+			dAtA[i] = 1
+		} else {
+			dAtA[i] = 0
+		}
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0xa0
+	}
+	if m.EmitEnumValidMethod {
+		i--
+		if m.EmitEnumValidMethod {
+			dAtA[i] = 1
+		} else {
+			dAtA[i] = 0
+		}
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0x98
+	}
 	if len(m.OutputFilesSuffix) > 0 {
 		i -= len(m.OutputFilesSuffix)
 		copy(dAtA[i:], m.OutputFilesSuffix)
@@ -1868,6 +1892,12 @@ func (m *GoCode) SizeVT() (n int) {
 	if l > 0 {
 		n += 2 + l + sov(uint64(l))
 	}
+	if m.EmitEnumValidMethod {
+		n += 3
+	}
+	if m.EmitAllEnumValues {
+		n += 3
+	}
 	if m.unknownFields != nil {
 		n += len(m.unknownFields)
 	}
@@ -4237,6 +4267,46 @@ func (m *GoCode) UnmarshalVT(dAtA []byte) error {
 			}
 			m.OutputFilesSuffix = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
+		case 19:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field EmitEnumValidMethod", wireType)
+			}
+			var v int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflow
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				v |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			m.EmitEnumValidMethod = bool(v != 0)
+		case 20:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field EmitAllEnumValues", wireType)
+			}
+			var v int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflow
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				v |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			m.EmitAllEnumValues = bool(v != 0)
 		default:
 			iNdEx = preIndex
 			skippy, err := skip(dAtA[iNdEx:])
diff --git a/protos/plugin/codegen.proto b/protos/plugin/codegen.proto
index ae82c839dd..8dc6360399 100644
--- a/protos/plugin/codegen.proto
+++ b/protos/plugin/codegen.proto
@@ -99,6 +99,8 @@ message GoCode
   string output_models_file_name = 16;
   string output_querier_file_name = 17;
   string output_files_suffix = 18;
+  bool emit_enum_valid_method = 19;
+  bool emit_all_enum_values = 20;
 }
 
 message JSONCode
diff --git a/scripts/regenerate/main.go b/scripts/regenerate/main.go
index d48dc63ab7..357db07c80 100644
--- a/scripts/regenerate/main.go
+++ b/scripts/regenerate/main.go
@@ -21,9 +21,9 @@ func regenerate(dir string) error {
 			cwd := filepath.Dir(path)
 			cmd := exec.Command("sqlc-dev", "generate", "--experimental")
 			cmd.Dir = cwd
-			failed := cmd.Run()
+			out, failed := cmd.CombinedOutput()
 			if _, err := os.Stat(filepath.Join(cwd, "stderr.txt")); os.IsNotExist(err) && failed != nil {
-				return fmt.Errorf("%s: sqlc-dev generate failed", cwd)
+				return fmt.Errorf("%s: sqlc-dev generate failed\n%s", cwd, out)
 			}
 		}
 		return nil