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  2. A 101 Guide to PostgreSQL Kafka Connector | Hevo

    Step 3: Load the Properties file and Run the Connector. To load the configuration and start the connector, type the following command: #Postgresql Kafka Connector--- confluent connect create --config postgres-source.json.

  3. Planning VMware vSphere with Greenplum

    The number of Greenplum Database virtual machines you deploy depends on the number of hosts in your environment. You must plan for 8 primary segments and 8 mirror segments running on each ESXi host, as well as the Greenplum master and standby master virtual machines. total_number_of_greenplum_vms = 16 * (number_of_hosts) + 2

  4. PostgreSQL: Documentation: 16: dblink

    Description. dblink executes a query (usually a SELECT, but it can be any SQL statement that returns rows) in a remote database. When two text arguments are given, the first one is first looked up as a persistent connection's name; if found, the command is executed on that connection. If not found, the first argument is treated as a connection ...

  5. PostgreSQL: Documentation: 16: 20.7. Query Planning

    The genetic query optimizer (GEQO) is an algorithm that does query planning using heuristic searching. This reduces planning time for complex queries (those joining many relations), at the cost of producing plans that are sometimes inferior to those found by the normal exhaustive-search algorithm.

  6. PostgreSQL: Documentation: 16: DROP TABLE

    DROP TABLE removes tables from the database. Only the table owner, the schema owner, and superuser can drop a table. To empty a table of rows without destroying the table, use DELETE or TRUNCATE. DROP TABLE always removes any indexes, rules, triggers, and constraints that exist for the target table. However, to drop a table that is referenced ...

  7. PostgreSQL: Documentation: 16: pg_basebackup

    Description. pg_basebackup is used to take a base backup of a running PostgreSQL database cluster. The backup is taken without affecting other clients of the database, and can be used both for point-in-time recovery (see Section 26.3) and as the starting point for a log-shipping or streaming-replication standby server (see Section 27.2 ).

  8. Migrate data from a self-managed Greenplum cluster to an ...

    Use gpcopy to migrate data. Submit a ticket to contact Alibaba Cloud technical support and provide the following information: the ID of the AnalyticDB for PostgreSQL instance, the IP address and port number of the self-managed Greenplum cluster, an account of the Greenplum cluster that has superuser permissions to migrate data, and the IP address of the server where the Greenplum cluster resides.

  9. PostgreSQL: Documentation: 16: 37.17. columns

    37.17. columns. #. The view columns contains information about all table columns (or view columns) in the database. System columns ( ctid, etc.) are not included. Only those columns are shown that the current user has access to (by way of being the owner or having some privilege). Table 37.15. columns Columns.

  10. Setting up and Configuring Greenplum Database - VMware Docs

    This example assumes the following: Greenplum Database is secured with MIT Kerberos. The Kerberos principal matches the Greenplum Database user name. For example, the Kerberos principal for the Greenplum user named bill is bill@<REALM>. A Greenplum user accesses the database using a keytab file. The keytab contains the principal with which to ...

  11. Using the Connector - VMware Docs

    The Connector creates a new Hikari connection pool for each unique combination of JDBC connection string URL, username, and password. You can use Connector options to configure connection pool options that bound the number of open JDBC connections between a Spark application and the Greenplum Database server.

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