embulk-input-postgresql

PostgreSQL input plugins for Embulk

PostgreSQL input plugins for Embulk loads records from PostgreSQL.

Overview

• Plugin type: input
• Resume supported: yes

Configuration

• host: database host name (string, required)
• port: database port number (integer, 5432)
• user: database login user name (string, required)
• password: database login password (string, default: "")
• database: destination database name (string, required)
• schema: destination schema name (string, default: "public")
• fetch_rows: number of rows to fetch one time (used for java.sql.Statement#setFetchSize) (integer, default: 10000)
• connect_timeout: timeout for establishment of a database connection. (integer (seconds), default: 300)
• socket_timeout: timeout for socket read operations. 0 means no timeout. (integer (seconds), default: 1800)
• ssl: enables SSL. data will be encrypted but CA or certification will not be verified (boolean, default: false)
• options: extra JDBC properties (hash, default: {})
• If you write SQL directly,
  • query: SQL to run (string)
• If query is not set,
  • table: destination table name (string, required)
  • select: comma-separated list of columns to select (string, default: "*")
  • where: WHERE condition to filter the rows (string, default: no-condition)
• default_timezone: If the sql type of a column is date/time/datetime and the embulk type is string, column values are formatted int this default_timezone. You can overwrite timezone for each columns using column_options option. (string, default: UTC)
• column_options: advanced: a key-value pairs where key is a column name and value is options for the column.
  • value_type: embulk get values from database as this value_type. Typically, the value_type determines getXXX method of java.sql.PreparedStatement. (string, default: depends on the sql type of the column. Available values options are: long, double, float, decimal, boolean, string, date, time, timestamp)
  • type: Column values are converted to this embulk type. Available values options are: boolean, long, double, string, timestamp). By default, the embulk type is determined according to the sql type of the column (or value_type if specified).
  • timestamp_format: If the sql type of the column is date/time/datetime and the embulk type is string, column values are formatted by this timestamp_format. And if the embulk type is timestamp, this timestamp_format may be used in the output plugin. For example, stdout plugin use the timestamp_format, but csv formatter plugin doesn't use. (string, default : %Y-%m-%d for date, %H:%M:%S for time, %Y-%m-%d %H:%M:%S for timestamp)
  • timezone: If the sql type of the column is date/time/datetime and the embulk type is string, column values are formatted in this timezone. (string, value of default_timezone option is used by default)

Example

in:
  type: postgresql
  host: localhost
  user: myuser
  password: ""
  database: my_database
  table: my_table
  select: "col1, col2, col3"
  where: "col4 != 'a'"

If you need a complex SQL,

in:
  type: postgresql
  host: localhost
  user: myuser
  password: ""
  database: my_database
  query: |
    SELECT t1.id, t1.name, t2.id AS t2_id, t2.name AS t2_name
    FROM table1 AS t1
    LEFT JOIN table2 AS t2
      ON t1.id = t2.t1_id

Advanced configuration:

in:
  type: postgresql
  host: localhost
  user: myuser
  password: ""
  database: my_database
  table: "my_table"
  select: "col1, col2, col3"
  where: "col4 != 'a'"
  column_options:
    col1: {type: long}
    col3: {type: string, timestamp_format: "%Y/%m/%d", timezone: "+0900"}

Build

$ ./gradlew gem