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P
08001
Moderate
PostgreSQL · Database Server
PostgreSQL SQLSTATE 08001 (sqlclient_unable_to_establish_sqlconnection) indicates sqlclient unable to establish sqlconnection during connection/session transport handling.
Quick Answer
Error code 08001 on your PostgreSQL Database Server means: PostgreSQL SQLSTATE 08001 (sqlclient_unable_to_establish_sqlconnection) indicates sqlclient unable to establish sqlconnection during connection/session transport handling.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
RDS-POSTGRESAZURE-PG-FLEXCLOUDSQL-PG1112131415161718
Likely Causes
  1. The current statement triggered sqlclient_unable_to_establish_sqlconnection, which PostgreSQL classifies as SQLSTATE 08001.
  2. Application SQL, parameter values, or transaction state are incompatible with PostgreSQL rules for sqlclient unable to establish sqlconnection.
  3. Environment differences (schema, permissions, or runtime settings) exposed this 08001 condition in production flow.
How to Fix It
1
Capture full query text, bind values, and transaction context for SQLSTATE 08001.
2
Reproduce sqlclient_unable_to_establish_sqlconnection in staging with the same schema version and connection settings.
3
Inspect pg logs and execution plan details to isolate the exact failing clause or object.
4
Apply a targeted fix (query rewrite, schema migration, or transaction-order change) for sqlclient unable to establish sqlconnection.
5
Deploy and verify SQLSTATE 08001 no longer appears in error telemetry.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Related Error Codes
0800008003080060800408P01
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