42601ERRORTier 1 — Safe✅ HIGH confidence

syntax error at or near "..."

Category: Syntax Error or Access Rule ViolationVersions: All Postgres versions

What this means

The Postgres SQL parser encountered a token it did not expect at the indicated position. The query is rejected before any planning or execution occurs; no data is read or written.

Why it happens

1Typo or missing keyword in the SQL statement (e.g., SELCT instead of SELECT)
2Missing comma between column definitions or SELECT list items
3Unmatched parentheses or quotation marks
4Using a reserved keyword as an unquoted identifier (e.g., a column named "order")
5Dialect mismatch: MySQL or SQLite syntax used against Postgres (e.g., backtick quoting, LIMIT x,y)

How to reproduce

A SELECT statement contains a typo that confuses the parser.

trigger — this will ERROR

SELCT id, name FROM users;

ERROR: syntax error at or near "SELCT" LINE 1: SELCT id, name FROM users;

Fix 1: Read the error position and correct the syntax

Always — the error message points to the exact token where parsing failed.

fix

-- Corrected statement:
SELECT id, name FROM users;

-- For reserved word conflicts, double-quote the identifier:
SELECT "order", total FROM invoices;

Why this works

Postgres uses a LALR(1) parser generated by Bison. The parser consumes tokens from the lexer and matches them against grammar rules. When an unexpected token is encountered the parser reports its position in the source string. The fix is always to correct the SQL to conform to Postgres grammar.

What not to do

✗

Wrap the entire statement in a TRY/CATCH and ignore syntax errors

Why it's wrong: Syntax errors indicate a bug in query construction; silencing them hides broken code paths from developers.

Sources

📚 Official docs: https://www.postgresql.org/docs/current/errcodes-appendix.html

📚 Feature docs: https://www.postgresql.org/docs/current/sql-syntax.html

🔧 Source ref: src/backend/parser/gram.y — Bison grammar rules

📖 Further reading: SQL Syntax

Confidence assessment

✅ HIGH confidence

The error and its meaning are completely stable. The exact token reported in the message points precisely to the problem. Edge case: in very long queries the error position may point to a token after the real mistake due to parser error recovery.