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  • Overview
    • What is DeltaStream?
    • Core Concepts
      • Access Control
      • Region
      • SQL
      • Store
      • Database
      • Query
      • Visualizing Data Lineage
      • Function
  • Getting Started
    • Free Trial Quick Start
    • Starting with the Web App
    • Starting with the CLI
  • Tutorials
    • Managing Users and User Roles
      • Inviting Users to an Organization
      • Administering Users in your Organization
      • Using the CLI to Manage User Roles
      • Example: Setting Up Custom Roles for Production and Stage
    • Creating Stores for Streaming Data
    • Using Multiple Stores in Queries
    • Creating Relations to Structure Raw Data
    • Namespacing with Database and Schema
    • Creating and Querying Materialized Views
    • Creating a Function
    • Securing Your Connections to Data Stores
      • Introducing DeltaStream Private Links
      • Creating an AWS Private Link from DeltaStream to your Confluent Kafka Dedicated Cluster
      • Enabling Private Link Connectivity to Confluent Enterprise Cluster and Schema Registry
      • Creating a Private Link from DeltaStream to Amazon MSK
      • Creating a Private Link for RDS Databases
      • Deleting a Private Link
    • Integrations
      • Connecting to Confluent Cloud
      • Databricks
      • PostgreSQL
      • Snowflake
      • WarpStream
    • Serialization
      • Working with ProtoBuf Serialized Data and DeltaStream Descriptors
      • Working with Avro Serialized Data and Schema Registries
      • Configuring Deserialization Error Handling
  • Reference
    • Enterprise Security Integrations
      • Okta SAML Integration
      • Okta SCIM Integration
    • Metrics
      • Prometheus Integration
      • Built-In Metrics
      • Custom Metrics in Functions
    • SQL Syntax
      • Data Formats (Serialization)
        • Serializing with JSON
        • Serializing with Primitive Data Types
        • Serializing with Protobuf
      • Data Types
      • Identifiers and Keywords
      • Command
        • ACCEPT INVITATION
        • CAN I
        • COPY DESCRIPTOR_SOURCE
        • COPY FUNCTION_SOURCE
        • DESCRIBE ENTITY
        • DESCRIBE QUERY
        • DESCRIBE QUERY METRICS
        • DESCRIBE QUERY EVENTS
        • DESCRIBE QUERY STATE
        • DESCRIBE RELATION
        • DESCRIBE RELATION COLUMNS
        • DESCRIBE ROLE
        • DESCRIBE SECURITY INTEGRATION
        • DESCRIBE <statement>
        • DESCRIBE STORE
        • DESCRIBE USER
        • GENERATE COLUMNS
        • GENERATE TEMPLATE
        • GRANT OWNERSHIP
        • GRANT PRIVILEGES
        • GRANT ROLE
        • INVITE USER
        • LIST API_TOKENS
        • LIST DATABASES
        • LIST DESCRIPTORS
        • LIST DESCRIPTOR_SOURCES
        • LIST ENTITIES
        • LIST FUNCTIONS
        • LIST FUNCTION_SOURCES
        • LIST INVITATIONS
        • LIST METRICS INTEGRATIONS
        • LIST ORGANIZATIONS
        • LIST QUERIES
        • LIST REGIONS
        • LIST RELATIONS
        • LIST ROLES
        • LIST SCHEMAS
        • LIST SCHEMA_REGISTRIES
        • LIST SECRETS
        • LIST SECURITY INTEGRATIONS
        • LIST STORES
        • LIST USERS
        • PRINT ENTITY
        • REJECT INVITATION
        • REVOKE INVITATION
        • REVOKE PRIVILEGES
        • REVOKE ROLE
        • SET DEFAULT
        • USE
      • DDL
        • ALTER API_TOKEN
        • ALTER SECURITY INTEGRATION
        • CREATE API_TOKEN
        • CREATE CHANGELOG
        • CREATE DATABASE
        • CREATE DESCRIPTOR_SOURCE
        • CREATE ENTITY
        • CREATE FUNCTION_SOURCE
        • CREATE FUNCTION
        • CREATE INDEX
        • CREATE METRICS INTEGRATION
        • CREATE ORGANIZATION
        • CREATE ROLE
        • CREATE SCHEMA_REGISTRY
        • CREATE SCHEMA
        • CREATE SECRET
        • CREATE SECURITY INTEGRATION
        • CREATE STORE
        • CREATE STREAM
        • CREATE TABLE
        • DROP API_TOKEN
        • DROP CHANGELOG
        • DROP DATABASE
        • DROP DESCRIPTOR_SOURCE
        • DROP ENTITY
        • DROP FUNCTION_SOURCE
        • DROP FUNCTION
        • DROP METRICS INTEGRATION
        • DROP RELATION
        • DROP ROLE
        • DROP SCHEMA
        • DROP SCHEMA_REGISTRY
        • DROP SECRET
        • DROP SECURITY INTEGRATION
        • DROP STORE
        • DROP STREAM
        • DROP USER
        • UPDATE ENTITY
        • UPDATE SCHEMA_REGISTRY
        • UPDATE SECRET
        • UPDATE STORE
      • Query
        • APPLICATION
        • Change Data Capture (CDC)
        • CREATE CHANGELOG AS SELECT
        • CREATE STREAM AS SELECT
        • CREATE TABLE AS SELECT
        • Function
          • Built-in Functions
          • Row Metadata Functions
        • INSERT INTO
        • Materialized View
          • CREATE MATERIALIZED VIEW AS
          • SELECT (FROM MATERIALIZED VIEW)
        • Query Name and Version
        • Resume Query
        • RESTART QUERY
        • SELECT
          • FROM
          • JOIN
          • MATCH_RECOGNIZE
          • WITH (Common Table Expression)
        • TERMINATE QUERY
      • Sandbox
        • START SANDBOX
        • DESCRIBE SANDBOX
        • STOP SANDBOX
      • Row Key Definition
    • Rest API
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  1. Reference
  2. SQL Syntax
  3. Data Formats (Serialization)

Serializing with Protobuf

PreviousSerializing with Primitive Data TypesNextData Types

Last updated 5 months ago

The following table lists the data type mapping from Protobuf type to DeltaStream's Data Types.

Protobuf Type
DeltaStream Data Type

INT64, SINT64, SFIXED64, UINT64, FIXED64

BIGINT

BYTES

VARBINARY

BOOL

BOOLEAN

DOUBLE

DOUBLE

FLOAT

FLOAT

INT32, SINT32, SFIXED32, UINT32, FIXED32

INTEGER

STRING, ENUM

VARCHAR

MAP

MAP

MESSAGE

STRUCT

repeated

ARRAY

Note Currently, there is no support for Protobuf types ANY and OneOf in serialization. Columns in a or fields in a are strictly typed at the creation time.

There is support for Protobuf's wrapped message types that capture primitive values, in serialization. If the message instance has a valid value set when deserializing, that value is unwrapped to its corresponding primitive type. If there is no value set in the message, that column or Struct field is set to null.

The following table lists the mapping for these types:

Protobuf Message Type
DeltaStream Data Type

google.protobuf.BoolValue

BOOLEAN

google.protobuf.Int32Value

INTEGER

google.protobuf.UInt32Value

INTEGER

google.protobuf.Int64Value

BIGINT

google.protobuf.UInt64Value

BIGINT

google.protobuf.FloatValue

FLOAT

google.protobuf.DoubleValue

DOUBLE

google.protobuf.StringValue

VARCHAR

google.protobuf.BytesValue

VARBINARY

google.protobuf.Timestamp

TIMESTAMP, TIMESTAMP_LTZ

Relation
Struct