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All SQLite error codes
SQLite error code

SQLITE_CONSTRAINT_COMMITHOOK

SQLITE_CONSTRAINT_COMMITHOOK is SQLite result code 531, an extended code of SQLITE_CONSTRAINT.

Result code531
NameSQLITE_CONSTRAINT_COMMITHOOK
Primary codeSQLITE_CONSTRAINT

What it means

The SQLITE_CONSTRAINT_COMMITHOOK error code is an extended error code for SQLITE_CONSTRAINT indicating that a commit hook callback returned non-zero that thus caused the SQL statement to be rolled back.

Source: SQLite Result and Error Codes