undefined file
SQLSTATE 58P01 is a Postgres-specific error raised when Postgres tries to access a file (e.g., a data file, library file, or configuration file) that does not exist on the filesystem.
- 1A shared library referenced in CREATE FUNCTION ... LANGUAGE C does not exist
- 2A data file expected by the system is missing from the data directory
- 3COPY FROM referencing a file path that does not exist on the server
COPY FROM a non-existent file.
COPY orders FROM '/tmp/nonexistent_file.csv';
expected output
ERROR: could not open file "/tmp/nonexistent_file.csv": No such file or directory
Fix 1
Verify the file path exists on the server
WHEN When using COPY FROM with a file path.
Why this works
COPY FROM (without STDIN) accesses the file on the Postgres server filesystem. Ensure the file exists at the specified path and the postgres user has read permission.
Fix 2
Use COPY FROM STDIN or psql metacommand for client-side files
WHEN When the file is on the client machine, not the server.
-- In psql: \copy orders FROM '/local/path/file.csv' CSV;
Why this works
The psql \copy metacommand streams the file from the client, avoiding the need for the file to exist on the server.
Class 58 — System Error (Postgres-specific)
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