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DataStax Pulsar Connector

    • Getting Started
      • About the DataStax Apache Pulsar™ Connector
        • System requirements
      • Pulsar Connector release notes
      • Installing DataStax Apache Pulsar™ Connector
      • Pulsar Connector single instance quick start
    • Guides and examples
      • Configuration
        • Configuring parallelism
        • Specify writetime timestamp column
        • Setting row-level TTL values from Pulsar fields
        • Pass Pulsar Connector settings directly to the DataStax Java driver
        • Mapping pulsar topics to database tables
          • Determining topic data structure
          • Mapping basic messages to table columns
          • Mapping a message that contain JSON fields
            • Mapping a message that contains both basic and JSON fields
            • Mapping JSON messages
          • Mapping Avro messages
          • Extract Pulsar record header values
          • Mapping messages to table that has a User Defined Type
          • Mapping a topic to multiple tables
          • Multiple topics to multiple tables
          • Provide CQL queries in mappings
          • The now() function in mappings
      • Operations
        • About operating and maintaining the DataStax Connector
        • Scaling the DataStax Apache Pulsar™ Connector
        • Changing the topic or table schema
        • Restarting the DataStax Apache Pulsar™ Connector
        • Displaying the DataStax Apache Pulsar™ Connector configuration
        • Updating the DataStax Apache Pulsar™ Connector configuration
        • Deleting the DataStax Apache Pulsar™ Connector
        • Getting the DataStax Connector status
      • Security
        • Using internal or LDAP authentication
      • DataStax Apache Pulsar™ Connector metrics
      • Troubleshooting
        • Record fails to write
        • Writing fails because of mutation size
        • Data parsing fails
        • Loading balancing datacenter is not specified
    • Reference
      • DataStax Apache Pulsar™ Connector details
      • DataStax connection
      • Pulsar topic-to-table settings
      • Converting date and times for a topic
      • Using the DataStax Apache Pulsar™ Connector with DataStax Enterprise authentication
        • Internal or LDAP authentication
      • SSL encrypted connection
      • Configure error handling
  • DataStax Pulsar Connector
  • Guides and examples
  • Configuration
  • Mapping pulsar topics to database tables

Mapping pulsar topics to database tables

DataStax Apache Pulsar™ Connector has a simple yet powerful syntax for mapping fields from a Pulsar record to columns in a supported database table. An instance of the DataStax Apache Pulsar™ Connector can capture multiple topics and supports mapping a single topic to one or more tables.

DataStax Apache Pulsar™ Connector topic mapping

DataStax Apache Pulsar™ Connector supports topic-to-table mappings with supported databases:

  • Determining topic data structure Display messages to determine the data structure of the topic messages.

  • Mapping basic messages to table columns Create a topic-table map for Pulsar messages that only contain a key and value in each record.

  • Mapping a message that contain JSON fields For JSON fields, map individual fields in the structure to columns.

  • Mapping Avro messages Supports mapping individual fields from a Avro format field.

  • Extract Pulsar record header values Extract values from Pulsar record header and write to the database table.

  • Mapping messages to table that has a User Defined Type Write complex types directly into User-defined Types (UDT).

  • Mapping a topic to multiple tables Ingest a single topic into multiple tables using a single connector instance.

  • Multiple topics to multiple tables Ingest multiple topics and write to different tables using a single connector instance.

  • Selectively update maps and UDTs based on Pulsar fields Selectively update maps and UDTs based on Pulsar fields.

  • Provide CQL queries in mappings Provide CQL queries when new record arrives on the Pulsar topic.

  • The now() function in mappings You can use the now() function in mappings.

Pass Pulsar Connector settings directly to the DataStax Java driver Determining topic data structure

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