Connector for ksqlDB

The ksqlDB connector allows executing ksqlDB pull queries and terminating push queries.

NOTE: Pull queries fetch the current state of a materialized view which is incrementally updated as new events arrive.

Enter the following properties:

Property	Description
Server URL	ksqlDB host address.
Username	User Id that will be used to connect to ksqlDB.
Password	Password that will be used to connect to ksqlDB.

Select the Collection checkbox to enable and select either:
- Stream
  Immutable and append-only collections which are useful for representing a series of historical facts. Adding multiple events with the same key allows these events to be appended to the end of the stream.
- Table
  Mutable collections. Adding multiple events with the same key allows the table to only keep the value for the last key. This collection is helpful in modeling change over time and often used to represent aggregations.
Click to populate the drop-down list. Select the collection.
Enter an SQL-like query language into the Query box.
Select the From Beginning checkbox to subscribe from the beginning to the latest messages.

If not selected, you will only be subscribed to the latest messages.
Enter the Timeout. The default is 5 (in seconds).
Select either the period (.) or comma (,) as the Decimal Separator.
NOTE: Prepend 'default:' for the elements falling under default namespace.
Click to the fetch the schema based on the connection details. Consequently, the list of
columns with the data type found from inspecting the first ‘n’ rows of the input data source is populated and the Save button is enabled.
You can also opt to load or save a copy of the column definition.

Click

. A new column entry displays. Enter or select the following properties:

Property	Description
Name	The column name of the source schema.
Type	The data type of the column. Can be a Text, Numeric, or Time
Date Format	The format when the data type is Time.
Enabled	Determines whether the message field should be processed.

To delete a column, check its or all the column entries, check the topmost , then click .

Date/Time values of output data and Date/Time inputs, where supported, is by default unchanged.

You can opt to define the Show in Timezone and Source Timezone settings.