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Trigger Trigger

yaml
type: "io.kestra.plugin.jdbc.mysql.Trigger"

Wait for query on a MySQL database.

Examples

Wait for a SQL query to return results, and then iterate through rows.

yaml
id: jdbc-trigger
namespace: io.kestra.tests

tasks:
  - id: each
    type: io.kestra.core.tasks.flows.EachSequential
    tasks:
      - id: return
        type: io.kestra.core.tasks.debugs.Return
        format: "{{ json(taskrun.value) }}"
    value: "{{ trigger.rows }}"

triggers:
  - id: watch
    type: io.kestra.plugin.jdbc.mysql.Trigger
    interval: "PT5M"
    url: jdbc:mysql://127.0.0.1:3306/
    username: mysql_user
    password: mysql_passwd
    sql: "SELECT * FROM my_table"
    fetch: true

Properties

url

  • Type: string
  • Dynamic: ✔️
  • Required: ✔️

The JDBC URL to connect to the database.

conditions

List of conditions in order to limit the flow trigger.

fetch

  • Type: boolean
  • Dynamic:
  • Required:
  • Default: false

Whether to fetch the data from the query result to the task output. This parameter is evaluated after fetchOne and store.

fetchOne

  • Type: boolean
  • Dynamic:
  • Required:
  • Default: false

Whether to fetch only one data row from the query result to the task output. This parameter is evaluated before store and fetch.

fetchSize

  • Type: integer
  • Dynamic:
  • Required:
  • Default: 10000

Number of rows that should be fetched. Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed for this ResultSet object. If the fetch size specified is zero, the JDBC driver ignores the value and is free to make its own best guess as to what the fetch size should be. Ignored if autoCommit is false.

interval

  • Type: string
  • Dynamic:
  • Required:
  • Default: 60.000000000
  • Format: duration

Interval between polling. The interval between 2 different polls of schedule, this can avoid to overload the remote system with too many calls. For most of the triggers that depend on external systems, a minimal interval must be at least PT30S. See ISO_8601 Durations for more information of available interval values.

password

  • Type: string
  • Dynamic: ✔️
  • Required:

The database user's password.

sql

  • Type: string
  • Dynamic: ✔️
  • Required:

The SQL query to run.

stopAfter

  • Type: array
  • SubType: string
  • Dynamic:
  • Required:

List of execution states after which a trigger should be stopped (a.k.a. disabled).

store

  • Type: boolean
  • Dynamic:
  • Required:
  • Default: false

Whether to fetch data row(s) from the query result to a file in internal storage. File will be saved as Amazon Ion (text format). See Amazon Ion documentation This parameter is evaluated after fetchOne but before fetch.

timeZoneId

  • Type: string
  • Dynamic:
  • Required:

The time zone id to use for date/time manipulation. Default value is the worker's default time zone id.

username

  • Type: string
  • Dynamic: ✔️
  • Required:

The database user.

Outputs

row

  • Type: object
  • Dynamic:
  • Required:

Map containing the first row of fetched data. Only populated if fetchOne parameter is set to true.

rows

  • Type: array
  • SubType: object
  • Dynamic:
  • Required:

List of map containing rows of fetched data. Only populated if fetch parameter is set to true.

size

  • Type: integer
  • Dynamic:
  • Required:

The number of rows fetched. Only populated if store or fetch parameter is set to true.

uri

  • Type: string
  • Dynamic:
  • Required:
  • Format: uri

The URI of the result file on Kestra's internal storage (.ion file / Amazon Ion formatted text file). Only populated if store is set to true.

Definitions

io.kestra.core.models.conditions.Condition