| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Noah Misch <noah(at)leadboat(dot)com>, Peter Geoghegan <pg(at)bowt(dot)ie> |
| Cc: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Marco Nenciarini <marco(dot)nenciarini(at)2ndquadrant(dot)it>, Petr Jelinek <petr(dot)jelinek(at)2ndquadrant(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [PATCH] Logical decoding of TRUNCATE |
| Date: | 2020-12-20 23:13:08 |
| Message-ID: | 20201220231308.yi4t3xj2btpanxs5@alap3.anarazel.de |
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| Lists: | pgsql-general pgsql-hackers |
Hi,
On 2020-12-20 04:13:19 +0000, Noah Misch wrote:
> postgres: subscriber: logical replication worker for subscription 16411 (GetTransactionSnapshot+0x168) [0x951ce8]
> postgres: subscriber: logical replication worker for subscription 16411 (InitializeParallelDSM+0x16) [0x52cf86]
> postgres: subscriber: logical replication worker for subscription 16411 (btbuild+0x26a) [0x50905a]
> postgres: subscriber: logical replication worker for subscription 16411 (index_build+0x14b) [0x569c1b]
> postgres: subscriber: logical replication worker for subscription 16411 (reindex_index+0x19a) [0x56caea]
> postgres: subscriber: logical replication worker for subscription 16411 (reindex_relation+0xc0) [0x56d090]
> postgres: subscriber: logical replication worker for subscription 16411 (ExecuteTruncateGuts+0x376) [0x62f0d6]
> postgres: subscriber: logical replication worker for subscription 16411 () [0x78d592]
> postgres: subscriber: logical replication worker for subscription 16411 (ApplyWorkerMain+0x5ab) [0x78e4eb]
> postgres: subscriber: logical replication worker for subscription 16411 (StartBackgroundWorker+0x23f) [0x75522f]
> postgres: subscriber: logical replication worker for subscription 16411 () [0x762a6d]
> postgres: subscriber: logical replication worker for subscription 16411 () [0x7635ee]
> /lib64/libpthread.so.0(+0xf630) [0x7fe081e97630]
> /lib64/libc.so.6(__select+0x13) [0x7fe0805c0983]
> postgres: subscriber: logical replication worker for subscription 16411 () [0x4887ac]
> postgres: subscriber: logical replication worker for subscription 16411 (PostmasterMain+0x1118) [0x764c88]
> postgres: subscriber: logical replication worker for subscription 16411 (main+0x6f2) [0x48aae2]
> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fe0804ed555]
> postgres: subscriber: logical replication worker for subscription 16411 () [0x48ab49]
> 2020-12-19 17:54:04.683 PST [3629353:5] LOG: background worker "logical replication worker" (PID 3629509) exited with exit code 1
Hm. Do I understand correctly that this problem is hit solely because
the parallel mode code relies on there already have been a transaction
snapshot set, thus avoiding the error? And that the code normally only
works because GetTransactionSnapshot() will already have been called
somewhere, before EnterParallelMode()?
Greetings,
Andres Freund
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