…ting

We had a couple of PRs in which we wanted to remove the buffering of bundle
output during checkpointing: apache#7940 apache#9652. Ultimately, we didn't merge any of
those because we weren't sure how the change would affect the checkpoint
performance.

As a better migration path, this introduces a pipeline option to change the
default, buffering bundle output during checkpointing, to finishing the bundle
and flushing all data before checkpointing.

…s for some learners

In this Kata, the timestamp was calculated from time objects, and converted to a
timestamp in the local timezone. Thus, the results of the test depended on the
configuration of the local timezone in the running system.

The tests were hardcoded with a timezone different to mine, and thus I always
failed to pass this Kata. The changes in this commit change the type in Event to
be a datetime, the timestamps are set in UTC, and the output in the tests is
hardcoded in UTC too. This should ensure that the kata works regardless the
timezone configured in the system running the kata.

Parsing the timestamps as strings using fromisoformat was failing, and the Kata
failed silently regardless the code written in the boxes.

This change sets the same timestamps, with UTC timezone, without parsing
strings.

…orms/Map"

…essons

…" lessons

…lessons

…a 11 (apache#11692)

[BEAM-2530] Implement Zeta SQL precommit compile tests and run on java 11

…lush bundle data before checkpointing

…wo windowing Python katas

[BEAM-10018] Fix timestamps in two windowing Python katas

…wer-placeholder-check

Python Katas - Remove answer placeholder checks

Co-authored-by: Omar Ismail <[email protected]>

…e as a Beam LogicalType

* Adds a "filesystem" for artifacts placed on the classpath (e.g. within the uberjar).
* Updates the flink and spark uberjars to use artifact staging v2, leveraging the above filesystem.

Add all the grouping/batching parameters in SpannerIO
populateDisplayData().

…a. (apache#11528)

[BEAM-9821] Populate all SpannerIO batching parameters in display data.

…orms/Map"

…essons

…" lessons

…lessons

…nto katas-convert-html-desc-to-md

# Conflicts:
#	learning/katas/python/Windowing/Adding Timestamp/ParDo/task.md