MySQL error 1344 fires when the SQL or file parser reaches the end of input while bypassing an unknown parameter in a LOAD DATA statement or server startup option.
MySQL Error 1344: ER_FPARSER_EOF_IN_UNKNOWN_PARAMETER signals that MySQL hit the end of the statement while ignoring an unrecognized parameter in LOAD DATA or a configuration file. Delete the unknown option or spell it correctly to resolve the error.
Unexpected end of file while skipping unknown parameter
MySQL raises error 1344 with message "Unexpected end of file while skipping unknown parameter" when its file parser reaches the end of input without finding a closing delimiter for an option it does not recognize.
The situation appears most often during LOAD DATA INFILE operations or when MySQL reads configuration files at start-up. The parser skips over tokens it cannot parse, but if the file ends before a valid parameter boundary, error 1344 terminates the statement.
Unknown or misspelled option keywords in LOAD DATA INFILE or .cnf files trigger the parser to enter skip mode. If no terminating whitespace or valid token appears before the file ends, the EOF condition fires error 1344.
Improper quoting of parameter values can also confuse the parser, making a legitimate option look unknown and extending parsing past the file boundary.
Identify and remove or correct the unrecognized parameter. Check spelling, dashes, and underscores in option names. Verify that parameter values are wrapped in the correct quotes and terminated properly.
After editing, rerun the LOAD DATA statement or restart MySQL. The parser should now recognize every parameter and complete without reaching EOF in unknown context.
LOAD DATA INFILE with FIELDS OPTION typo: An accidental parameter such as FIELDS TEMINATED instead of TERMINATED causes the parser to skip. Fix the spelling to resolve.
my.cnf startup option: Adding loose- or skip- prefixed custom options eliminates the error because MySQL ignores unknown options gracefully.
Validate option spelling against official MySQL documentation before execution. Use parameter placeholders in IDEs like Galaxy to reduce typos.
Keep configuration under version control and add automated start-up tests that parse .cnf files in a CI pipeline.
Error 1064: General SQL syntax error - occurs earlier in parsing. Fix malformed SQL.
Error 1148: The used command is not allowed - arises when secure-file-priv blocks LOAD DATA. Adjust server setting.
Typos like TEMINATED or ENCLOSEDD cause the parser to mark the option as unknown and skip until EOF.
Using a parameter introduced in a newer MySQL release on an older server triggers the error.
Missing closing quote around char or string values extends the parser scope until file end.
Nonprinting characters from copy-paste create tokens the parser cannot classify, leading to unknown-parameter mode.
Raised when the parser cannot recognize part of the statement at all. Usually fixed by correcting SQL syntax.
Occurs when LOAD DATA LOCAL is disabled by server settings. Enable local_infile or use server-side file.
Raised when the file path in LOAD DATA INFILE does not exist or has insufficient permissions.
Appears when LOAD DATA file location is outside the secure directory. Move file or change secure-file-priv.
Spelling mistakes, extra spaces, or using a newer option on an older server make MySQL flag the token as unknown.
Yes. Prefix the option with loose_ in configuration files so the server ignores it without halting startup.
Galaxy’s AI copilot validates option keywords in real time and warns when a parameter is not in the MySQL grammar, preventing execution errors.
The error exists across MySQL 5.6, 5.7, 8.0, and MariaDB forks because it originates in the shared file parser.
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