Norbert Orzechowicz

Hey! I accidentally created a private repository and then when I tried to submit them I got this error:  Which makes me think that a bit too much is...

Currently join and joinEach behaves a bit differently. join is using `HashJoin` algorithm under the hood when `joinEach` due is based on a nested loop algorithm. The problem is that...

There is a legacy SchemaMatcher mechanism that was already replaced by `DataFrame::match(schema())` that should be removed. Schema related objects should be also moved to `Flow\ETL\Schema` namespace from `Flow\ETL\Row\Schema`

(can be automated with https://github.com/spaze/phpstan-disallowed-calls) _Originally posted by @bendavies in https://github.com/flow-php/flow/pull/1577#discussion_r2030280819_

Currently ErrorHandler's are a bit problematic since they operate on Rows. It was done this way due to historical reason, Transformers are also operating on Rows. But with all recently...

Create an Excel Adapter based on: https://github.com/openspout/openspout/tree/4.x Adapter should let us: - [ ] write to excel files (ideally append to specific sheets so we can create multi-pages sheets) -...

Flow (just like other data processing frameworks) that operates on DataFrame abstraction (tabular representation of the dataset) can be naturally handled through SQL. The goal is to create a SQL...

When I started this project the name was just `etl` and it stayed like that forever. However now we are in the place where we have 26 packages, each with...

Initially I was looking for a name that will describe a single `cell`. Over time Entries turned more into Column's due to Schema. Column is also commonly used name across...