Trait

com.twitter.finagle.mysql

CursoredStatement

Related Doc: package mysql

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trait CursoredStatement extends AnyRef

A CursoredStatement represents a parameterized sql statement which when applied to parameters yields a lazy stream of rows. Can be used concurrently.

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Abstract Value Members

  1. abstract def apply[T](rowsPerFetch: Int, params: Parameter*)(f: (Row) ⇒ T): Future[CursorResult[T]]

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    Executes the cursored statement with the given params and lazily maps f over the rows as they are streamed from the database.

    Executes the cursored statement with the given params and lazily maps f over the rows as they are streamed from the database.

    Note

    rowsPerFetch should be carefully picked to balance the minimum number of round trips to the database, and the maximum amount of memory used by an individual fetch. For example, consider estimating the whole result size with a select count(...) first, and then setting rowsPerFetch to Math.log(count).

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