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Tom Lane
Tom Lanetgl@hub.org
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Nonametgl@postgresql.org
Tom Lane
Tom Lanetgl@postgresql.org
Tom Lane
Tom Lanetgl@redhat.com
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Nonametgl@sss.pgh.pa.us
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Nonametgl@svr1.postgresql.org
Tom Lane

Tom Lane

tgl@sss.pgh.pa.us

Core Team
149,447Messages sent
35,486Threads started82,778Threads joined2,762Patches sentacross 1754 threads
28 yrsActiveApr 1998 - Sep 2026
17,460Commit credits
271Author
585Reviewer
105Reported by
30Co author
16,855Committer
556Backports
Patch threads that landed
1,268 / 1,441
88% of patch threads since 2017 reached a commit crediting them as author or committer
Threads startedmedian lifetime under a day 31,634 of 35,486 have no replies
Longest runningeqjoinsel_semi still sucks ... - 11.2 years
Most participants + most messages8.2 features status - 54 participants - 320 messages
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Recent messages (last 30 days)

Threads125 messages
7Started
29Replied in own
89Replied to othersin 51 threads
Patchesof which 19 carried a patch
6New patchfirst in its thread
13Follow-uprevision of an earlier one
ActivityThreadSent
Replied (other)Add PRODUCT() aggregate functionabout 1 hour ago
Replied (other)Trying to break online checksums with LLMsabout 4 hours ago
Replied (other)Rename PqMsg_Progress to PqMsg_ParallelWorkerProgressabout 5 hours ago
Replied (other)Rename PqMsg_Progress to PqMsg_ParallelWorkerProgressabout 8 hours ago
Replied (other)BUG #19671: IPv4 CIDR Prefix Integer Overflow Bypasses Validation in inet/cidr Castsabout 8 hours ago
Replied (other)Add PRODUCT() aggregate functionabout 9 hours ago
Replied (other)Rename PqMsg_Progress to PqMsg_ParallelWorkerProgress1 day ago
Replied (other)Follow-up patchCREATE SCHEMA ... CREATE DOMAIN support1 day ago
Replied (other)pg_get_*_ddl() needs a redesign1 day ago
Replied (other)CREATE SCHEMA ... CREATE DOMAIN support1 day ago
Replied (own)remove_useless_joins vs. bug #195601 day ago
Replied (other)Assert failure in try_nestloop_path()1 day ago
Replied (other)Fix var_eq_const: sum selectivity of all matching MCV entries instead of stopping at first match2 days ago
Replied (other)Assert failure in try_nestloop_path()2 days ago
Replied (other)Assert failure in try_nestloop_path()2 days ago
Replied (other)docs: Fixes for August 2026 minor release notes (v14-v17)2 days ago
Replied (other)Introducing find_all_inheritors_ordered()3 days ago
Replied (other)new clang warnings about unused global variables3 days ago
Replied (other)Follow-up patchAssert failure in try_nestloop_path()3 days ago
Replied (other)BUG #19653: "variable not found in subplan target list" during planning with parallel parameterized nested loop,3 days ago
Replied (other)BUG #19653: "variable not found in subplan target list" during planning with parallel parameterized nested loop,4 days ago
Replied (other)Remove toast_max_chunk_size from control file4 days ago
Replied (other)Remove toast_max_chunk_size from control file4 days ago
Replied (other)Fire create_upper_paths_hook for UPPERREL_PARTIAL_GROUP_AGG4 days ago
Replied (other)Internal error codes triggered by regression tests and user queries, take 24 days ago
Replied (other)BUG #19653: "variable not found in subplan target list" during planning with parallel parameterized nested loop,4 days ago
Replied (own)Improving display of octal GUCs4 days ago
Replied (other)SUM(int2)/SUM(int4) do not detect overflow of the int8 accumulator5 days ago
Replied (other)CREATE SCHEMA ... CREATE DOMAIN support6 days ago
Replied (other)BUG #19644: byteaout, float8out and float4out are marked IMMUTABLE but depend on GUCs6 days ago
Replied (other)Make the transition state of avg(int2)/avg(int4)/sum(int2)/sum(int4) internal6 days ago
Replied (other)BUG #19653: "variable not found in subplan target list" during planning with parallel parameterized nested loop,6 days ago
Replied (other)BUG #19653: "variable not found in subplan target list" during planning with parallel parameterized nested loop,6 days ago
Replied (other)[RFC PATCH] Cost-based delayed projection for ORDER BY ... LIMIT7 days ago
Replied (other)CREATE SCHEMA ... CREATE DOMAIN support7 days ago
Replied (other)BUG #19647: Difference in pg_basebackup behaviour between PostgreSQL <= 16 and >= 17 with pgactive extension7 days ago
Replied (own)Improving display of octal GUCs7 days ago
Replied (other)Assert failure in try_nestloop_path()7 days ago
Replied (own)remove_useless_joins vs. bug #195607 days ago
Replied (other)new clang warnings about unused global variables7 days ago
Replied (other)Disallow outer-level and WHERE-clause aggregates in GRAPH_TABLE8 days ago
Replied (other)BUG #19644: byteaout, float8out and float4out are marked IMMUTABLE but depend on GUCs9 days ago
Replied (other)First patchxid_wraparound/002_limits.pl might fail due to transient warning9 days ago
Replied (other)foreign_key test is sensitive to the OID counter9 days ago
Replied (other)BUG #19487: Error while executing SQL query involving XML parsing9 days ago
Replied (own)remove_useless_joins vs. bug #195609 days ago
Replied (other)foreign_key test is sensitive to the OID counter9 days ago
Replied (own)remove_useless_joins vs. bug #1956010 days ago
Replied (other)Follow-up patchBUG #19487: Error while executing SQL query involving XML parsing11 days ago
Replied (own)Follow-up patchremove_useless_joins vs. bug #1956011 days ago
Replied (own)remove_useless_joins vs. bug #1956011 days ago
Replied (other)BUG #19595: Three memory-safety defects in src/backend/tsearch/spell.c (dictionary loader), PG 18.311 days ago
Replied (other)BUG #19595: Three memory-safety defects in src/backend/tsearch/spell.c (dictionary loader), PG 18.312 days ago
Replied (other)BUG #19595: Three memory-safety defects in src/backend/tsearch/spell.c (dictionary loader), PG 18.312 days ago
Replied (other)BUG #19487: Error while executing SQL query involving XML parsing12 days ago
Replied (own)Follow-up patchremove_useless_joins vs. bug #1956012 days ago
Replied (own)remove_useless_joins vs. bug #1956013 days ago
Replied (other)Should the WAIT FOR command tag be "WAIT" or "WAIT FOR"?13 days ago
Replied (other)BUG #19487: Error while executing SQL query involving XML parsing13 days ago
Replied (own)remove_useless_joins vs. bug #1956013 days ago
Replied (own)remove_useless_joins vs. bug #1956014 days ago
Replied (other)Tracking role modification timestamps in pg_authid / pg_roles15 days ago
Replied (own)Follow-up patchremove_useless_joins vs. bug #1956015 days ago
Replied (other)Internal error codes triggered by regression tests and user queries, take 215 days ago
Replied (own)remove_useless_joins vs. bug #1956015 days ago
Replied (other)Add a Nix flake16 days ago
Replied (other)Plan a filtering inner join as a semijoin16 days ago
Replied (other)scary patch contest16 days ago
Replied (other)Replace px_memset() with explicit_bzero()16 days ago
Replied (other)Add a Nix flake16 days ago
Replied (other)Allow a prosupport function to be attached to an aggregate18 days ago
Replied (other)Wrong results from join removal with DISTINCT ON + SRF subquery20 days ago
Replied (other)Drop "leaked" resources in sqljson/sqljson_queryfuncs regression tests20 days ago
Replied (other)missing possibility to use alternative translated month names in to_char function20 days ago
Replied (other)Allow a prosupport function to be attached to an aggregate20 days ago
Replied (other)[PATCH] Fix compilation of nodeMergejoin.c with EXEC_MERGEJOINDEBUG20 days ago
Replied (other)Follow-up patchAllow a prosupport function to be attached to an aggregate21 days ago
Replied (other)Follow-up patchAllow a prosupport function to be attached to an aggregate21 days ago
Replied (own)Make formatting.c use StringInfos for output buffers21 days ago
Replied (other)Test tidscan,sql is not immune to autovacuum in v1422 days ago
Replied (other)Test tidscan,sql is not immune to autovacuum in v1422 days ago
Started threadFirst patchOne more bit of PL/Perl cleanup22 days ago
Replied (own)Residual cleanups for tied objects in PL/Perl22 days ago
Replied (own)Residual cleanups for tied objects in PL/Perl23 days ago
Started threadRecent "could not register background process" buildfarm failures23 days ago
Replied (own)Residual cleanups for tied objects in PL/Perl23 days ago
Replied (other)Follow-up patchAllow a prosupport function to be attached to an aggregate23 days ago
Replied (own)Residual cleanups for tied objects in PL/Perl24 days ago
Replied (own)Residual cleanups for tied objects in PL/Perl24 days ago
Replied (own)Follow-up patchResidual cleanups for tied objects in PL/Perl24 days ago
Replied (own)Residual cleanups for tied objects in PL/Perl24 days ago
Replied (own)Residual cleanups for tied objects in PL/Perl24 days ago
Replied (own)Residual cleanups for tied objects in PL/Perl24 days ago
Replied (own)Residual tsquery cleanups24 days ago
Replied (other)redundant double negation prevents IN-subquery pull-up and causes a slower SubPlan24 days ago
Replied (own)Residual cleanups for tied objects in PL/Perl25 days ago
Replied (own)Residual cleanups for tied objects in PL/Perl25 days ago
Replied (own)Make tsqueryout() use a StringInfo25 days ago
Replied (own)Residual tsquery cleanups25 days ago
Started threadFirst patchResidual cleanups for tied objects in PL/Perl25 days ago
Started threadFirst patchResidual tsquery cleanups25 days ago
Replied (other)examine_variable ignored CollateExpr25 days ago
Replied (other)BUG #19612: SEGV in ParseConfigFp() in guc-file.l25 days ago
Replied (other)[PATCH] Fix compilation of nodeMergejoin.c with EXEC_MERGEJOINDEBUG25 days ago
Replied (other)Disallow outer-level and WHERE-clause aggregates in GRAPH_TABLE26 days ago
Replied (other)Follow-up patchDisallow outer-level and WHERE-clause aggregates in GRAPH_TABLE26 days ago
Replied (other)SIGSEGV in dynahash26 days ago
Replied (other)CREATE OR REPLACE MATERIALIZED VIEW27 days ago
Replied (other)BUG #19619: WHERE scale(n) = 1 pushed past GROUP BY / window PARTITION BY, wrong COUNT27 days ago
Replied (other)CREATE OR REPLACE MATERIALIZED VIEW27 days ago
Replied (other)BUG #19613: pg_restore: several SEGVs in ReadToc() in pg_backup_archiver.c27 days ago
Replied (other)Redundant qualifier elimination27 days ago
Replied (other)COPY TO regression with psql -c27 days ago
Replied (other)Follow-up patchCOPY TO regression with psql -c28 days ago
Started threadFirst patchMake formatting.c use StringInfos for output buffers28 days ago
Started threadFirst patchMake tsqueryout() use a StringInfo28 days ago
Replied (other)Handle MAXSTRLEN consistently28 days ago
Replied (other)Follow-up patchHandle MAXSTRLEN consistently29 days ago
Replied (other)COPY TO regression with psql -c29 days ago
Replied (other)BUG #19615: COVAR_POP / COVAR_SAMP / REGR_SXY return 0.0 instead of NaN29 days ago
Replied (other)Disallow outer-level and WHERE-clause aggregates in GRAPH_TABLE29 days ago
Replied (other)Credits For v1929 days ago
Started threadRe: pg_upgrade from 17.10 to 18.4 on Ubuntu fails: Finding the real data directory for the target cluster sh: 1: (null)/postgres: not found29 days ago
Replied (other)[PATCH] Remove redundant ORDER BY from COUNT aggregates29 days ago
Replied (other)BUG #19610: Database won't start if an unrelated process is exist30 days ago