PostgreSQL Error Reference

Every error, explained

SQLSTATE codes, condition names, root causes, diagnostic queries, and recovery steps — structured for engineers running PostgreSQL in production.

3910 errors documentedFree diagnostics on every pageAll PG versions covered

Showing 120 of 3910 errors

08P01 ERROR

invalid transaction ID in streamed replication transaction — 08P01

protocol_violation

PostgreSQL error "invalid transaction ID in streamed replication transaction" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

logical replication column n not found in tuple: only n column(s) r… — 08P01

protocol_violation

PostgreSQL error "logical replication column n not found in tuple: only n column(s) received" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

incorrect commit LSN n/n in commit message (expected n/n) — 08P01

protocol_violation

PostgreSQL error "incorrect commit LSN n/n in commit message (expected n/n)" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

tablesync worker received a BEGIN PREPARE message — 08P01

protocol_violation

PostgreSQL error "tablesync worker received a BEGIN PREPARE message" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

incorrect prepare LSN n/n in prepare message (expected n/n) — 08P01

protocol_violation

PostgreSQL error "incorrect prepare LSN n/n in prepare message (expected n/n)" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

STREAM PREPARE message without STREAM STOP — 08P01

protocol_violation

PostgreSQL error "STREAM PREPARE message without STREAM STOP" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

tablesync worker received a STREAM PREPARE message — 08P01

protocol_violation

PostgreSQL error "tablesync worker received a STREAM PREPARE message" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

ORIGIN message sent out of order — 08P01

protocol_violation

PostgreSQL error "ORIGIN message sent out of order" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

duplicate STREAM START message — 08P01

protocol_violation

PostgreSQL error "duplicate STREAM START message" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

STREAM STOP message without STREAM START — 08P01

protocol_violation

PostgreSQL error "STREAM STOP message without STREAM START" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

STREAM ABORT message without STREAM STOP — 08P01

protocol_violation

PostgreSQL error "STREAM ABORT message without STREAM STOP" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

STREAM COMMIT message without STREAM STOP — 08P01

protocol_violation

PostgreSQL error "STREAM COMMIT message without STREAM STOP" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

invalid logical replication message type “??? (n)” — 08P01

protocol_violation

PostgreSQL error "invalid logical replication message type "??? (n)"" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

invalid two-phase transaction ID — 08P01

protocol_violation

PostgreSQL error "invalid two-phase transaction ID" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

function call message contains n arguments but function requires n — 08P01

protocol_violation

PostgreSQL error "function call message contains n arguments but function requires n" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

function call message contains n argument formats but n arguments — 08P01

protocol_violation

PostgreSQL error "function call message contains n argument formats but n arguments" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

invalid argument size n in function call message — 08P01

protocol_violation

PostgreSQL error "invalid argument size n in function call message" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 FATAL

invalid frontend message type n — 08P01

protocol_violation

PostgreSQL error "invalid frontend message type n" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

bind message has n parameter formats but n parameters — 08P01

protocol_violation

PostgreSQL error "bind message has n parameter formats but n parameters" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

bind message supplies n parameters, but prepared statement “…” requ… — 08P01

protocol_violation

PostgreSQL error "bind message supplies n parameters, but prepared statement "…" requires n" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

invalid CLOSE message subtype n — 08P01

protocol_violation

PostgreSQL error "invalid CLOSE message subtype n" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

invalid DESCRIBE message subtype n — 08P01

protocol_violation

PostgreSQL error "invalid DESCRIBE message subtype n" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

fastpath function calls not supported in a replication connection — 08P01

protocol_violation

PostgreSQL error "fastpath function calls not supported in a replication connection" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception
08P01 ERROR

extended query protocol not supported in a replication connection — 08P01

protocol_violation

PostgreSQL error "extended query protocol not supported in a replication connection" (SQLSTATE 08P01, protocol_violation): what it means, common causes, and how to fix it.

Connection Exception