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When I call max on two timestamps, I get an error : select max(now()::timestamp, to_timestamp('2021-01-01', 'YYYY-MM-DD')::timestamp); -- ERROR: function max(timestamp without time zone, timestamp without time zone) does not exist My actual usage would be in an upsert query, where I would like to write : INSERT ... ON CONFLICT (pk) DO UPDATE SET ts = max(tab
Goal To determine whether the expires_on field on Cloudflare API Tokens actually causes the token to become invalid after the specified timestamp, and whether cached or in‑flight credentials continue to be honored beyond that point. Constraints & Uncertainty API Tokens default to no expiration; the expires_on field is optional and its enforcement is undo
Model Portability across Keras Versions Migrating a production application from Keras 2 to Keras 3 involves transitioning to a multi-backend architecture that supports TensorFlow, PyTorch, and JAX. To ensure consistency during this migration, the .keras zip-based archive format is the recommended standard for serialization over legacy HDF5 files. Backend Com
Symptom When a route intended to be protected by a custom authentication guard is accessed directly, the protected page renders even though the user is not authenticated. The goal is to understand why the guard fails to prevent access and what conditions allow the route to become publicly exposed. Constraints include React Router v6’s lack of a built‑in Requ
Logical Properties Transition in CSS3 CSS3 logical properties such as margin-block and padding-inline replace physical properties to support multiple writing modes. Unresolved Compatibility Issue When a physical property (e.g., margin-left ) and its logical counterpart (e.g., margin-inline-start ) are both specified on the same element, browsers may resolve
User-space Tagged Address Metadata On AArch64 Linux systems with 48-bit virtual addresses, the CONFIG_ARM64_TAGGED_ADDR_ABI configuration and prctl(PR_SET_TAGGED_ADDR_CTRL) allow tasks to utilize the top byte of pointers for metadata. While this enables efficient memory tagging in user-space, the behavior of these pointers when crossing the kernel boundary r
Compare suitability, operational responsibilities and limits before choosing this technology for a project. Which trade-offs should guide the decision?
I created a spa application owned by my organization only, but there was a problem when I requested code. How can I resolve it?
Migrating a small Stata application to a newer release without downtime requires deciding how aggressively to raise the maxvar limit. The setting is session‑specific and resets on restart unless written to a startup file, so any change must be applied consistently across all worker processes. Raising the limit too high allocates unnecessary memory and can ca
postgresql
cloudflare
keras
css3
aarch64
nextjs
stata