PDU Blog - PostgreSQL Data Recovery https://pduzc.com/blog Technical articles about PostgreSQL data recovery, database internals, and data rescue techniques en Fri, 20 Mar 2026 14:19:02 GMT <![CDATA[Inside the Kernel: The Complete Path to PostgreSQL Delete Recovery — From FPW to Data Resurrection]]> https://pduzc.com/blog/kernel_del_recovery https://pduzc.com/blog/kernel_del_recovery Thu, 05 Mar 2026 00:00:00 GMT noreply@pduzc.com (Zhang Chen) PostgreSQL Kernel Internals WAL FPW Delete Recovery Source Code <![CDATA[Expert-Level PostgreSQL Deleted Data Recovery in Just 5 Steps — No Kernel Knowledge Required]]> https://pduzc.com/blog/5steps_delrecovery https://pduzc.com/blog/5steps_delrecovery Thu, 05 Mar 2026 00:00:00 GMT noreply@pduzc.com (Zhang Chen) Data Recovery WAL PDU DELETE PITR Alternative <![CDATA[How to Turn PostgreSQL Unconventional Recovery into an Elegant Art]]> https://pduzc.com/blog/instant_recovery_art https://pduzc.com/blog/instant_recovery_art Fri, 09 Jan 2026 00:00:00 GMT noreply@pduzc.com (Zhang Chen) Unconventional Recovery Data Dictionary Data Recovery Instant Recovery Disaster Recovery <![CDATA[Not a Backup Replacement: What PostgreSQL Instant Recovery Actually Solves]]> https://pduzc.com/blog/instant_recovery_and_backup https://pduzc.com/blog/instant_recovery_and_backup Fri, 09 Jan 2026 00:00:00 GMT noreply@pduzc.com (Zhang Chen) Instant Recovery Backup Database Internals Disaster Recovery <![CDATA[Not All Unrecoverable PostgreSQL Data Is Actually Lost]]> https://pduzc.com/blog/instant_recovery https://pduzc.com/blog/instant_recovery Tue, 06 Jan 2026 00:00:00 GMT noreply@pduzc.com (Zhang Chen) Instant Recovery PDU Database Internals <![CDATA[Mission Impossible: How We Recovered 1TB of Data in 48 Hours]]> https://pduzc.com/blog/recovery-1tb-data https://pduzc.com/blog/recovery-1tb-data Mon, 05 Jan 2026 00:00:00 GMT noreply@pduzc.com (Zhang Chen) Data Recovery PostGIS Disaster Recovery <![CDATA[World First! Secrets Behind PostgreSQL Fragment Scanning Recovery]]> https://pduzc.com/blog/dropscan_recovery https://pduzc.com/blog/dropscan_recovery Mon, 05 Jan 2026 00:00:00 GMT noreply@pduzc.com (Zhang Chen) DROP TABLE Fragment Scanning Disk Recovery PDU Database Internals <![CDATA[How to Recover PostgreSQL When Data Dictionary Gets Corrupted - A Real Case Study]]> https://pduzc.com/blog/dict_corrupt_recovery https://pduzc.com/blog/dict_corrupt_recovery Mon, 05 Jan 2026 00:00:00 GMT noreply@pduzc.com (Zhang Chen) Data Dictionary Disaster Recovery Database Corruption PDU <![CDATA[Extreme Recovery Series: 4 Hours to Rescue Core Data from a Domestic PG Database]]> https://pduzc.com/blog/4hour-core-data https://pduzc.com/blog/4hour-core-data Mon, 05 Jan 2026 00:00:00 GMT noreply@pduzc.com (Zhang Chen) rm -rf Data Recovery Domestic Database Disaster Recovery <![CDATA[Goodbye Boring Command Line: How to Debug PostgreSQL with VSCode GUI]]> https://pduzc.com/blog/vscode-debug-postgresql https://pduzc.com/blog/vscode-debug-postgresql Sun, 05 Jan 2025 00:00:00 GMT noreply@pduzc.com (Zhang Chen) VSCode Debugging Development Tools