Regex performance Slides: hackmd.io/@instanceofme/H13VSoKYn Why? DSS had this, executed under transaction, when copying code between recipe & notebook: sLine.replaceAll("\\s*$", "") // strip trailing spaces …which worked well enough …until it's fed a line with 262344 spaces followed by a comment (yes)

Spark Query DSL Some context Some issues Jean-François & I could help AP-HP with: Rapidly-changing data definitions Need for quick rebuilds… …While ensuring data quality Amidst accumulated technical debt