Flags for sqlite3changeset_apply_v2

#define SQLITE_CHANGESETAPPLY_NOSAVEPOINT 0x0001
#define SQLITE_CHANGESETAPPLY_INVERT 0x0002
#define SQLITE_CHANGESETAPPLY_IGNORENOOP 0x0004
#define SQLITE_CHANGESETAPPLY_FKNOACTION 0x0008

The following flags may passed via the 9th parameter to sqlite3changeset_apply_v2 and sqlite3changeset_apply_v2_strm:

SQLITE_CHANGESETAPPLY_NOSAVEPOINT

Usually, the sessions module encloses all operations performed by a single call to apply_v2() or apply_v2_strm() in a SAVEPOINT. The SAVEPOINT is committed if the changeset or patchset is successfully applied, or rolled back if an error occurs. Specifying this flag causes the sessions module to omit this savepoint. In this case, if the caller has an open transaction or savepoint when apply_v2() is called, it may revert the partially applied changeset by rolling it back.

SQLITE_CHANGESETAPPLY_INVERT

Invert the changeset before applying it. This is equivalent to inverting a changeset using sqlite3changeset_invert() before applying it. It is an error to specify this flag with a patchset.

SQLITE_CHANGESETAPPLY_IGNORENOOP

Do not invoke the conflict handler callback for any changes that would not actually modify the database even if they were applied. Specifically, this means that the conflict handler is not invoked for:

• a delete change if the row being deleted cannot be found,
• an update change if the modified fields are already set to their new values in the conflicting row, or
• an insert change if all fields of the conflicting row match the row being inserted.

SQLITE_CHANGESETAPPLY_FKNOACTION

If this flag it set, then all foreign key constraints in the target database behave as if they were declared with "ON UPDATE NO ACTION ON DELETE NO ACTION", even if they are actually CASCADE, RESTRICT, SET NULL or SET DEFAULT.

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