# period Published articles for period. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## PostgreSQL temporal UPDATE and DELETE by range DevFeed: [PostgreSQL temporal UPDATE and DELETE by range]() Original publisher: [Read original article]() Author: depesz Published: 2026-04-02T10:51:21Z Content type: tutorial Language: en Sources: [select \* from depesz;]() Topics: [PostgreSQL](), [postgresql 18]() Tags: [delete](), [period](), [pg19](), [postgresql](), [query](), [range](), [temporal](), [uncategorized](), [update](), [version](), [waiting]() ### AI overview This article explains a PostgreSQL patch that extends UPDATE and DELETE for temporal tables, allowing changes or deletions over a specified range or multirange period. The article also notes that the patch was later reverted after discussion. ### Source excerpt Important update This has been reverted with some discussion. Thanks for ping to mkurz 🙂 On 1st of April 2026, Peter Eisentraut committed patch: Add UPDATE/DELETE FOR PORTION OF This is an extension of the UPDATE and DELETE commands to do a "temporal update/delete" based on a range or multirange column. The user can ... Continue reading "Waiting for PostgreSQL 19 - Add UPDATE/DELETE FOR PORTION OF" ## New Developer Contract DevFeed: [New Developer Contract]() Original publisher: [Read original article]() Published: 2012-09-07T00:00:00Z Content type: release Language: en Sources: [Front Page on ReactOS Website]() Topics: [ReactOS](), [win32](), [Development]() Tags: [added](), [announce](), [bugs](), [developer](), [development](), [features](), [free](), [instead](), [new-features](), [number](), [open-source](), [os](), [period](), [project](), [react](), [reactos](), [reduce](), [summary](), [time](), [win32](), [winapi]() ### AI overview The ReactOS Project announced a one-month development contract with James Tabor focused on fixing longstanding bugs in the Win32 subsystem. The contract covers 120 hours and is intended to address an initial list of bugs, with additional bugs added if time permits. ### Source excerpt The ReactOS Project is pleased to announce a new development contract with James Tabor, a long time ReactOS developer that has worked extensively on the Win32 subsystem. Jim intends to tackle many of the longstanding bugs and hopefully significantly reduce the number of outstanding issues in the Win32 subsystem. This particular contract will have a heavy emphasis on bugfixing instead of attempting to introduce new features. Time: 120 hours ## Turing Machines and Conway's Dreams DevFeed: [Turing Machines and Conway's Dreams]() Original publisher: [Read original article]() Published: 2011-06-30T20:50:04Z Content type: tutorial Language: en Sources: [Jeremy Kun]() Topics: [Automaton]() Tags: [cellular](), [cellular-automata](), [computability-theory](), [computational-complexity](), [conway](), [infinite](), [life](), [mathematics](), [patterns](), [period](), [programming](), [recursion](), [theory](), [turing-machine](), [turing-machines]() ### AI overview The article examines Conway's Game of Life patterns that do not stabilize, including Gosper's glider gun and puffers that produce continuing activity. It connects these patterns to computability, explaining that infinite looping is necessary for Turing-complete computation. ### Source excerpt Additional Patterns Last time we left the reader with the assertion that Conway's game of life does not always stabilize. Specifically, there exist patterns which result in unbounded cell population growth. Although John Conway's original conjecture was that all patterns eventually stabilize (and offered $50 to anyone who could provide a proof or counterexample), he was proven wrong. Here we have the appropriately named glider gun, whose main body oscillates, expelling a glider once per period.