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Bases de datos
pgsql.cc is live, with Chinese documentation for all 11 PostgreSQL major versions from 10 through 20, a redesigned mirror of the official website, and better full-text search. Kept in sync with upstream, with no ads.
max_active_replication_origins is a ten-year-old XXX comment that finally got paid off. It arrived in PostgreSQL 18, and it exists because the thing it controls had been borrowing another parameter’s number since 9.5. On 14 through 17, the…
Starting with Percona XtraDB Cluster (PXC) 8.0, replication traffic encryption is enabled by default. That said, it’s common to find clusters running without TLS that suddenly need it: a new compliance requirement, an audit finding, a…
Structured Query Language 101 -15:00–16:20 Nov. 6, 2026 · 15:00 - 6:20 I will be teaching the basics of SQL at the 2026 Texas Linuxfest. The session is listed for only 100 minutes, but I wrote the materials for a 3-hour course. We will…