diff --git a/indexer/postgres/column.go b/indexer/postgres/column.go
index f9692af13711..188e9d8da651 100644
--- a/indexer/postgres/column.go
+++ b/indexer/postgres/column.go
@@ -25,7 +25,7 @@ func (tm *ObjectIndexer) createColumnDefinition(writer io.Writer, field schema.F
 	} else {
 		switch field.Kind {
 		case schema.EnumKind:
-			_, err = fmt.Fprintf(writer, "%q", enumTypeName(tm.moduleName, field.EnumDefinition))
+			_, err = fmt.Fprintf(writer, "%q", enumTypeName(tm.moduleName, field.EnumType))
 			if err != nil {
 				return err
 			}
@@ -100,7 +100,7 @@ func simpleColumnType(kind schema.Kind) string {
 		return "JSONB"
 	case schema.DurationKind:
 		return "BIGINT"
-	case schema.Bech32AddressKind:
+	case schema.AddressKind:
 		return "TEXT"
 	default:
 		return ""
diff --git a/indexer/postgres/enum.go b/indexer/postgres/enum.go
index c438257d2020..709fc9039562 100644
--- a/indexer/postgres/enum.go
+++ b/indexer/postgres/enum.go
@@ -11,7 +11,7 @@ import (
 )
 
 // CreateEnumType creates an enum type in the database.
-func (m *ModuleIndexer) CreateEnumType(ctx context.Context, conn DBConn, enum schema.EnumDefinition) error {
+func (m *ModuleIndexer) CreateEnumType(ctx context.Context, conn DBConn, enum schema.EnumType) error {
 	typeName := enumTypeName(m.moduleName, enum)
 	row := conn.QueryRowContext(ctx, "SELECT 1 FROM pg_type WHERE typname = $1", typeName)
 	var res interface{}
@@ -39,7 +39,7 @@ func (m *ModuleIndexer) CreateEnumType(ctx context.Context, conn DBConn, enum sc
 }
 
 // CreateEnumTypeSql generates a CREATE TYPE statement for the enum definition.
-func CreateEnumTypeSql(writer io.Writer, moduleName string, enum schema.EnumDefinition) error {
+func CreateEnumTypeSql(writer io.Writer, moduleName string, enum schema.EnumType) error {
 	_, err := fmt.Fprintf(writer, "CREATE TYPE %q AS ENUM (", enumTypeName(moduleName, enum))
 	if err != nil {
 		return err
@@ -63,30 +63,6 @@ func CreateEnumTypeSql(writer io.Writer, moduleName string, enum schema.EnumDefi
 }
 
 // enumTypeName returns the name of the enum type scoped to the module.
-func enumTypeName(moduleName string, enum schema.EnumDefinition) string {
+func enumTypeName(moduleName string, enum schema.EnumType) string {
 	return fmt.Sprintf("%s_%s", moduleName, enum.Name)
 }
-
-// createEnumTypesForFields creates enum types for all the fields that have enum kind in the module schema.
-func (m *ModuleIndexer) createEnumTypesForFields(ctx context.Context, conn DBConn, fields []schema.Field) error {
-	for _, field := range fields {
-		if field.Kind != schema.EnumKind {
-			continue
-		}
-
-		if _, ok := m.definedEnums[field.EnumDefinition.Name]; ok {
-			// if the enum type is already defined, skip
-			// we assume validation already happened
-			continue
-		}
-
-		err := m.CreateEnumType(ctx, conn, field.EnumDefinition)
-		if err != nil {
-			return err
-		}
-
-		m.definedEnums[field.EnumDefinition.Name] = field.EnumDefinition
-	}
-
-	return nil
-}
diff --git a/indexer/postgres/go.mod b/indexer/postgres/go.mod
index d85dbc46718e..b0423dde0744 100644
--- a/indexer/postgres/go.mod
+++ b/indexer/postgres/go.mod
@@ -9,3 +9,5 @@ go 1.12
 // This module should only use the golang standard library (database/sql)
 // and cosmossdk.io/indexer/base.
 require cosmossdk.io/schema v0.1.1
+
+replace cosmossdk.io/schema => ../../schema
diff --git a/indexer/postgres/go.sum b/indexer/postgres/go.sum
index 6a92c3d3ec66..e69de29bb2d1 100644
--- a/indexer/postgres/go.sum
+++ b/indexer/postgres/go.sum
@@ -1,2 +0,0 @@
-cosmossdk.io/schema v0.1.1 h1:I0M6pgI7R10nq+/HCQfbO6BsGBZA8sQy+duR1Y3aKcA=
-cosmossdk.io/schema v0.1.1/go.mod h1:RDAhxIeNB4bYqAlF4NBJwRrgtnciMcyyg0DOKnhNZQQ=
diff --git a/indexer/postgres/internal/testdata/example_schema.go b/indexer/postgres/internal/testdata/example_schema.go
index ccdd39d96c35..ff2d4f2ed1b4 100644
--- a/indexer/postgres/internal/testdata/example_schema.go
+++ b/indexer/postgres/internal/testdata/example_schema.go
@@ -29,22 +29,26 @@ func init() {
 
 		switch i {
 		case schema.EnumKind:
-			field.EnumDefinition = MyEnum
-		case schema.Bech32AddressKind:
-			field.AddressPrefix = "foo"
+			field.EnumType = MyEnum
 		default:
 		}
 
 		AllKindsObject.ValueFields = append(AllKindsObject.ValueFields, field)
 	}
 
-	ExampleSchema = schema.ModuleSchema{
-		ObjectTypes: []schema.ObjectType{
-			AllKindsObject,
-			SingletonObject,
-			VoteObject,
-		},
+	ExampleSchema = mustModuleSchema([]schema.ObjectType{
+		AllKindsObject,
+		SingletonObject,
+		VoteObject,
+	})
+}
+
+func mustModuleSchema(objectTypes []schema.ObjectType) schema.ModuleSchema {
+	s, err := schema.NewModuleSchema(objectTypes)
+	if err != nil {
+		panic(err)
 	}
+	return s
 }
 
 var SingletonObject = schema.ObjectType{
@@ -60,9 +64,9 @@ var SingletonObject = schema.ObjectType{
 			Nullable: true,
 		},
 		{
-			Name:           "an_enum",
-			Kind:           schema.EnumKind,
-			EnumDefinition: MyEnum,
+			Name:     "an_enum",
+			Kind:     schema.EnumKind,
+			EnumType: MyEnum,
 		},
 	},
 }
@@ -76,14 +80,14 @@ var VoteObject = schema.ObjectType{
 		},
 		{
 			Name: "address",
-			Kind: schema.Bech32AddressKind,
+			Kind: schema.AddressKind,
 		},
 	},
 	ValueFields: []schema.Field{
 		{
 			Name: "vote",
 			Kind: schema.EnumKind,
-			EnumDefinition: schema.EnumDefinition{
+			EnumType: schema.EnumType{
 				Name:   "vote_type",
 				Values: []string{"yes", "no", "abstain"},
 			},
@@ -92,7 +96,7 @@ var VoteObject = schema.ObjectType{
 	RetainDeletions: true,
 }
 
-var MyEnum = schema.EnumDefinition{
+var MyEnum = schema.EnumType{
 	Name:   "my_enum",
 	Values: []string{"a", "b", "c"},
 }
diff --git a/indexer/postgres/module.go b/indexer/postgres/module.go
index 57564700b78a..0d6a28e2ef72 100644
--- a/indexer/postgres/module.go
+++ b/indexer/postgres/module.go
@@ -12,7 +12,7 @@ type ModuleIndexer struct {
 	moduleName   string
 	schema       schema.ModuleSchema
 	tables       map[string]*ObjectIndexer
-	definedEnums map[string]schema.EnumDefinition
+	definedEnums map[string]schema.EnumType
 	options      Options
 }
 
@@ -22,7 +22,7 @@ func NewModuleIndexer(moduleName string, modSchema schema.ModuleSchema, options
 		moduleName:   moduleName,
 		schema:       modSchema,
 		tables:       map[string]*ObjectIndexer{},
-		definedEnums: map[string]schema.EnumDefinition{},
+		definedEnums: map[string]schema.EnumType{},
 		options:      options,
 	}
 }
@@ -30,29 +30,27 @@ func NewModuleIndexer(moduleName string, modSchema schema.ModuleSchema, options
 // InitializeSchema creates tables for all object types in the module schema and creates enum types.
 func (m *ModuleIndexer) InitializeSchema(ctx context.Context, conn DBConn) error {
 	// create enum types
-	for _, typ := range m.schema.ObjectTypes {
-		err := m.createEnumTypesForFields(ctx, conn, typ.KeyFields)
-		if err != nil {
-			return err
-		}
-
-		err = m.createEnumTypesForFields(ctx, conn, typ.ValueFields)
-		if err != nil {
-			return err
-		}
+	var err error
+	m.schema.EnumTypes(func(enumType schema.EnumType) bool {
+		err = m.CreateEnumType(ctx, conn, enumType)
+		return err == nil
+	})
+	if err != nil {
+		return err
 	}
 
 	// create tables for all object types
-	for _, typ := range m.schema.ObjectTypes {
+	m.schema.ObjectTypes(func(typ schema.ObjectType) bool {
 		tm := NewObjectIndexer(m.moduleName, typ, m.options)
 		m.tables[typ.Name] = tm
-		err := tm.CreateTable(ctx, conn)
+		err = tm.CreateTable(ctx, conn)
 		if err != nil {
-			return fmt.Errorf("failed to create table for %s in module %s: %v", typ.Name, m.moduleName, err) //nolint:errorlint // using %v for go 1.12 compat
+			err = fmt.Errorf("failed to create table for %s in module %s: %v", typ.Name, m.moduleName, err) //nolint:errorlint // using %v for go 1.12 compat
 		}
-	}
+		return err == nil
+	})
 
-	return nil
+	return err
 }
 
 // ObjectIndexers returns the object indexers for the module.
diff --git a/indexer/postgres/tests/go.mod b/indexer/postgres/tests/go.mod
index d5a29304251f..0353ba6091b5 100644
--- a/indexer/postgres/tests/go.mod
+++ b/indexer/postgres/tests/go.mod
@@ -30,4 +30,6 @@ require (
 
 replace cosmossdk.io/indexer/postgres => ../.
 
+replace cosmossdk.io/schema => ../../../schema
+
 go 1.22
diff --git a/indexer/postgres/tests/go.sum b/indexer/postgres/tests/go.sum
index a4ba87b486c2..de3d49d74702 100644
--- a/indexer/postgres/tests/go.sum
+++ b/indexer/postgres/tests/go.sum
@@ -1,5 +1,3 @@
-cosmossdk.io/schema v0.1.1 h1:I0M6pgI7R10nq+/HCQfbO6BsGBZA8sQy+duR1Y3aKcA=
-cosmossdk.io/schema v0.1.1/go.mod h1:RDAhxIeNB4bYqAlF4NBJwRrgtnciMcyyg0DOKnhNZQQ=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=