big-data

Is your feature request related to a problem? Please describe.
Many static type checkers have issues finding Cython's stubs.
Here is from running mypy on my current project:

error: Skipping analyzing "cython": found module but no type hints or library stubs

The same issue can be seen when using import Cython as cython:

error: Skipping analyzing "Cython": found module but 

Problem:

_catboost.pyx in _catboost._set_features_order_data_pd_data_frame()

_catboost.pyx in _catboost.get_cat_factor_bytes_representation()

CatBoostError: Invalid type for cat_feature[non-default value idx=1,feature_idx=336]=2.0 : cat_features must be integer or string, real number values and NaN values should be converted to string.

Could you also print a feature name, not o

Follow-up of #7828

Add --add-exports jdk.management/com.ibm.lang.management.internal only when OpenJ9 detected.

Otherwise we got WARNING: package com.ibm.lang.management.internal not in jdk.management in logs

Can we add functions to DeltaTable to perform optimization in pyspark ?
Or is there any other way to do in the delta release 1.2.0 ?

... to make it easier to read Vespa documentation on an e-reader / offline

Vespa documentation is generated using Jekyll from .md and .html files, look into options for generating the artifact as part of site generation (there might be plugins we can use here)

Use case:

Get the total duration over many events. Something like select sum(age(ended, started)) from myevents or select sum(ended - started) from myevents - depending on crate/crate#12479

See https://github.com/crate/crate/blob/dc3ce297b1597d482949a2e57479890feb3adbf4/server/src/main/java/io/crate/execution/engine/aggregation/impl/SumAggregation.java#L67