## Incremental Update: Paul Jungwirth (FOR PORTION OF author) Responds Paul Jungwirth, the author of the `FOR PORTION OF` implementation, has weighed in and taken a clear position **against** treatin...
# Technical Analysis: refint Plan Cache Bug and Resolution ## The Core Problem The `contrib/spi/refint` module provides `check_foreign_key()` and `check_primary_key()` trigger functions that implem...
# Move FOR PORTION OF Checks Out of Analysis ## Core Problem The `FOR PORTION OF` feature (a temporal/period-based SQL construct being added in PostgreSQL 19) has validation checks that are current...
# Technical Analysis: vacuumdb --exclude-database Option ## Core Problem The `vacuumdb --all` command in PostgreSQL's client utilities vacuums every connectable database on a cluster without except...
## Incremental Update: v3 and v4 Patches Posted (Housekeeping Only) ### What's New Two rapid-fire postings from the author, both purely mechanical fixes with no design evolution: 1. **v3 (2026-05-1...
# Fix Small Issues of pg_restore_extended_stats() ## Technical Context `pg_restore_extended_stats()` is part of PostgreSQL's statistics import/export infrastructure, which allows `pg_dump`/`pg_rest...
# Technical Analysis: Misleading Error Message in ProcessUtilitySlow T_CreateStatsStmt ## Core Problem This thread begins with a seemingly simple observation about a misleading error message but ev...
## Incremental Analysis: v3 Patch Using PG_ENSURE_ERROR_CLEANUP ### Key Technical Development The thread has converged on a third approach after both v1 and v2 were found to have fundamental flaws. ...
# pgstat: Flush Some Statistics Within Running Transactions, Take 2 ## Core Problem PostgreSQL's statistics subsystem (`pgstat`) accumulates counters in backend-local memory and only flushes them t...
## Incremental Update: v2 Patch Posted Paul Jungwirth posted a v2 of his own patch for this issue. The key technical development: ### Patch Evolution: v1 → v2 - **v1** (referenced but not in this m...
# Technical Analysis: postgres_fdw User Mapping Inconsistency in ANALYZE with restore_stats ## Core Problem When `ANALYZE` is run on a foreign table managed by `postgres_fdw`, the system must establ...
## Incremental Update: Minimal Progress — Consensus Forming on Pragmatic Fix The two new messages are brief and contain no new technical content, patches, or architectural arguments. They represent a...
# Technical Analysis: Review Comments on createPartitions() in pgbench.c ## Core Problem This thread raises code robustness concerns in the `createPartitions()` function within `pgbench.c` — Postgr...
## Incremental Update: Add psql tab completion support for FOR PORTION OF ### Summary No substantive technical progress since the last analysis. The only new message is from Kiran (the patch author)...
## Incremental Analysis: Round 8 (2026-05-14) ### Summary A single brief message from Tomas Vondra referencing an external thread about updating `join_collapse_limit` / `geqo_threshold` defaults. No...
## Incremental Update: New Scenario Discussion and Scope Clarification ### New Technical Discussion: ALTER SUBSCRIPTION Publisher-Switching Scenario Shveta Malik raised a new scenario that extends t...
# Technical Analysis: Null Pointer Dereference in FOR PORTION OF with Views and INSTEAD OF Triggers ## Core Problem A null pointer dereference crash occurs in PostgreSQL 19 when combining three fea...
## Incremental Update: Committer Attribution Concern The only new message is from **Bruce Momjian**, who attempted to commit the patch but hit a procedural/policy obstacle rather than a technical one...
# Technical Analysis: Avoiding Table Rewrite When Setting Column Type to Constrained Domain ## Core Problem When PostgreSQL executes `ALTER TABLE ... ALTER COLUMN ... SET DATA TYPE`, it traditional...
## Incremental Analysis: New Response from Huseyin ### Summary A new participant (Huseyin) responds with approval of the patch but raises a tangential but technically interesting observability conce...
# Technical Analysis: REPLICA IDENTITY USING INDEX Accepts Columns with NOT NULL NOT VALID ## Core Problem This bug report identifies a logical replication correctness issue introduced as a side ef...
## Patch Committed and Back-Patched The primary development this round is that **Alexander Korotkov pushed the fix** on 2026-05-14. The commit covers master, with back-patches to PG17 and PG18 requir...
# Technical Analysis: Redundant/Mis-use of _(x) gettext Macro ## Core Problem This thread begins with what appears to be a simple cleanup — removing seemingly unnecessary `_()` gettext macro wrappi...
## Incremental Update: Thread Resolved — Patch Reviewed, Refined, and Pushed ### Summary The thread reached resolution quickly. Tatsuo Ishii reviewed the original patch, suggested a clean encapsula...
# DOCS: Describe Missing Parameters on CREATE/ALTER PUBLICATION Pages ## Core Problem The PostgreSQL documentation for `CREATE PUBLICATION` and `ALTER PUBLICATION` SQL commands contains an inconsis...
# Deep Technical Analysis: FATAL Message Lost Inside libpq During Standby Logical Decoding ## Core Problem The test `035_standby_logical_decoding` intermittently fails on the buildfarm because a FA...
# Bug Analysis: pg_rewind Produces Unusable but Starting Database with Standby Recovery ## Core Problem This thread identifies a subtle and dangerous bug in PostgreSQL's recovery infrastructure whe...
# Analysis: PostgreSQL Hacker Mentoring Program 2026 — Call for Applications ## Overview This thread documents the third year of Robert Haas's 1:1 hacker mentoring program, which pairs aspiring Post...
## Incremental Update: Rebase Only, No Substantive Progress The sole new message from Evan Li (2026-05-15) is a one-word rebase notification with no technical content, no design changes, and no new a...
## New Developments (Since Prior Analysis #3) ### Jeff Davis posts v5 — a 4-patch series addressing Evan's tablesync-slot concern (2026-05-14) Jeff restructured his approach into a more granular ser...
# Technical Analysis: Set calcSumX2 = true in numeric_(poly_)deserialize ## Core Problem This thread addresses a subtle but semantically important bug in PostgreSQL's aggregate deserialization func...
## Incremental Update: Alexander Korotkov Takes Over Patch Revision, Signals Intent to Commit ### Key Development Alexander Korotkov (Supabase) has reviewed and revised the 4-patch series, making su...
## Incremental Update: Acknowledgments and Code Audit Confirmation The new messages are brief acknowledgments with no new technical content or patches. However, one operationally significant detail e...
# Analysis: Trivial Comment Fix in pgstat_assoc_relation() ## Core Problem This is a minor code hygiene issue in PostgreSQL's statistics subsystem. The function `pgstat_assoc_relation()` contains a...
# libpq Async API Deadlock with SSL Records >8kB ## The Core Problem The libpq asynchronous API has a fundamental architectural flaw: it assumes that after calling `pqReadData()` once, if no comple...
## Incremental Update: Ashutosh Bapat's Review and v3 Patch Restructuring ### New Reviewer: Ashutosh Bapat (2026-05-14) Ashutosh Bapat, a key contributor to SQL/PGQ infrastructure, weighed in with a...
## Incremental Update: v23 Patch Set Submitted The author (hukutoc@gmail.com) has submitted v23, addressing most of Alexander Korotkov's 8 review points from the previous round. The key development i...
# Deep Technical Analysis: Reducing EXPLAIN ANALYZE Timing Overhead via RDTSC ## Core Problem EXPLAIN ANALYZE with TIMING ON in PostgreSQL nearly **doubles** query execution time for simple, row-in...
# SQL Property Graph Queries (SQL/PGQ) - Deep Technical Analysis ## Problem Statement This thread tracks the implementation of SQL Property Graph Queries (SQL/PGQ) as specified in SQL:2023 (ISO/IEC...
# Re-adding Regression Tests for ltree and intarray: Stack Depth and Platform-Specific Recursion Failures ## Core Problem Regression tests for the `ltree` and `intarray` contrib extensions were **r...
# Fix Bug of COPY TO Support Partition Table ## Core Problem The "Support COPY TO for partitioned tables" feature introduced a bug in the attribute mapping logic when converting partition tuples to...
# Technical Analysis: Exposing Checkpoint Timestamp and Duration in pg_stat_checkpointer ## Core Problem PostgreSQL's checkpointer process is critical to database reliability — it ensures dirty buf...
# Logical Replication: Revisiting `is_table_publication` and `is_schema_publication` Implementation ## Core Problem In PostgreSQL's logical replication subsystem, two internal functions — `is_table...
## No substantive new progress Two new messages constitute a brief, self-contained editorial correction: **pg@bowt.ie** (likely Peter Geoghegan) flagged the "Add fake LSN support to hash index AM" i...
# Fix the Race Condition for Updating Slot Minimum LSN ## Core Problem This thread addresses a race condition in PostgreSQL's replication slot WAL reservation mechanism that can lead to **premature...
## Incremental Update: Thread Resolution The two new messages are purely procedural — Etsuro Fujita announced intent to push the updated patch (the Coverity fix with `pstrdup` and `free_remattrmap()`...
# Technical Analysis: Improving Test Failure Output in PostgreSQL's Meson Build System ## Core Problem PostgreSQL's test infrastructure, particularly when using the Meson build system, produces deep...
# Fix Bug of COPY (on_error set_null) — Array Indexing Mismatch ## Core Problem This thread reports a **memory safety bug and correctness violation** in the recently added `COPY ... (on_error set_n...
# Deep Technical Analysis: DELETE/UPDATE Corruption in Partitioned Foreign Tables ## The Core Problem This thread addresses a data corruption bug in PostgreSQL's Foreign Data Wrapper (FDW) infrastr...
## Incremental Update: New Review from Solai A new participant (Solai) has posted a review/testing report that adds modest technical substance to the discussion, primarily reinforcing existing argume...
# Technical Analysis: Add a Guard Against Uninitialized Default Locale ## The Core Problem This thread addresses a **defensive programming concern** in PostgreSQL's locale/collation infrastructure:...
# Add Missing Period to HINT and DETAIL Messages ## Core Problem PostgreSQL has a documented error message style guide that mandates: "Detail and hint messages: Use complete sentences, and end each...
# pg_stash_advice: Crash Loop from Overlong Stash Name in Persistence Dump File ## Executive Summary This thread reports a serious availability bug in the `pg_stash_advice` extension (apparently a ...
# Simplify Signature of ProcessStartupPacket() ## Technical Problem This thread addresses a code cleanup opportunity in PostgreSQL's connection startup path. The function `ProcessStartupPacket()` —...
# Fix Array-Element Quoting in postgres_fdw Import Statistics ## Core Problem The `postgres_fdw` extension's statistics import feature (`ANALYZE` on foreign tables) constructs a remote query agains...
# Lazy Snapshot Distribution in Logical Decoding ## Core Problem: O(N²) Snapshot Growth in the Reorder Buffer This patch addresses a fundamental scalability problem in PostgreSQL's logical decoding...
## Incremental Update: Buildfarm Client Bug Fixed for Log Capture (2026-05-16) Andrew Dunstan reports he has identified and fixed the buildfarm client bug that was preventing `pg_upgrade_output.d/` l...
# pg_recvlogical: File Permission Bug Analysis ## Core Problem `pg_recvlogical` is PostgreSQL's tool for receiving logical replication changes from a source cluster. Its documentation claims it pre...
# Bug Analysis: mdunlinkfiletag Unlinks Wrong Fork/Segment ## Core Problem The `mdunlinkfiletag()` function in PostgreSQL's magnetic disk (MD) storage manager has a latent bug where it always unlin...
# Technical Analysis: LIKE Fails to Match Literal Backslashes with Nondeterministic Collations ## Core Problem PostgreSQL's LIKE operator produces incorrect results when matching patterns containin...
# Technical Analysis: pg_get_subscription_ddl() Function Patch ## Core Problem PostgreSQL lacks a built-in function to reconstruct the DDL (Data Definition Language) statement for logical replicati...
## No substantive progress Another minimal maintenance drop from Nitin — removing the `split` command from the Windows test path and rebasing against HEAD. Single sentence description with no technic...
## Incremental Update: REPACK Option Parsing Bugs Discovered and Fixed The original tab-completion patch has been committed. More significantly, Fujii discovered two additional **server-side parsing ...
# Technical Analysis: SCRAM Passthrough Option Precedence in postgres_fdw and dblink ## Core Problem PostgreSQL's foreign data wrapper infrastructure (postgres_fdw and dblink) supports the `use_scr...
# Technical Analysis: Determinism of pg_dump Table Output Ordering ## Core Problem A user observed that two semantically identical PostgreSQL schemas—one created from scratch via DDL scripts and on...
## Incremental Update — Buildfarm Preparation (May 16) The thread advanced on the operational/infrastructure side, not on patch content. ### Key Development: Buildfarm Client Updated Andrew Dunstan...
## Incremental Update — 2026-05-14 through 2026-05-16 ### Summary A new reviewer (Zsolt Parragi from Percona) joined the thread and surfaced three concrete issues with the patch. Two were real bugs...
# Documentation Gap: Invalid Index Skipping During ATTACH PARTITION ## Core Problem When `ALTER TABLE ... ATTACH PARTITION` is executed, PostgreSQL attempts to match indexes on the partition being ...
# Technical Analysis: Truncate Logged Statements by Maximum Length ## Core Problem PostgreSQL's logging infrastructure has no built-in mechanism to limit the size of individual logged statements. W...
# Deep Technical Analysis: Fixing WAL Segment Creation Accounting in `log_checkpoints` ## The Core Problem PostgreSQL's `log_checkpoints` output includes a field "WAL file(s) added" (internally `ck...
# PSQL Publication Describe Command: Filtering Redundant Table Listings ## Core Problem The `\dRp+` command in psql (which describes publications in detail) displays redundant information when a pu...
## Incremental Update: Commit Intent Announced, No New Technical Content The two new messages are brief procedural exchanges with no new technical arguments, patches, or design discussion. - **Jeff ...
# Documentation Fix: pg_restore_extended_stats() Example Syntax Error ## Core Problem A trivial but potentially confusing typo was identified in the PostgreSQL documentation for the `pg_restore_ext...
# Sequence Access Methods: A Deep Technical Analysis ## The Core Problem PostgreSQL's sequence infrastructure is monolithic: every sequence stores its state (last_value, is_called, log_cnt) in a si...
## Patch Committed and CF Entry Closed Fujita pushed the patch on 2025-05-14, confirming the fix is now in the tree. He did not extend the test coverage beyond his v2 patch (i.e., Zhenwei Shang's sug...