VardhanThigle opened a new issue, #31467: URL: https://github.com/apache/beam/issues/31467
# Context JdbcIO seems to always default to `200` partitions (`DEFAULT_NUM_PARTITIONS`). This is set by default when the object is constructed [here](https://github.com/apache/beam/blob/master/sdks/java/io/jdbc/src/main/java/org/apache/beam/sdk/io/jdbc/JdbcIO.java#L362) There seems to be no way to over-ride this with a `null` value. Hence the [code](https://github.com/apache/beam/blob/b50ad0fe8fc168eaded62efb08f19cf2aea341e2/sdks/java/io/jdbc/src/main/java/org/apache/beam/sdk/io/jdbc/JdbcIO.java#L1398) that checks the null value and tries to auto infer the number of partitions based on the row count seems never runs. # Request for help Could you please clarify a few doubts around this? 1. Is this behavior intentional? 2. Could you please help explain the rational behind the heuristic in [L1398](https://github.com/apache/beam/blob/b50ad0fe8fc168eaded62efb08f19cf2aea341e2/sdks/java/io/jdbc/src/main/java/org/apache/beam/sdk/io/jdbc/JdbcIO.java#L1398)? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
