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Command: sqlite3session_patchset | Section: 3 | Source: NetBSD | File: sqlite3session_patchset.3
SQLITE3SESSION_PATCHSET(3) FreeBSD Library Functions Manual
NAME
sqlite3session_patchset - Generate A Patchset From A Session Object
SYNOPSIS
int
sqlite3session_patchset(sqlite3_session *pSession, int *pnPatchset,
void **ppPatchset );
DESCRIPTION
The differences between a patchset and a changeset are that:
o DELETE records consist of the primary key fields only. The original
values of other fields are omitted.
o The original values of any modified fields are omitted from UPDATE
records.
A patchset blob may be used with up to date versions of all
sqlite3changeset_xxx API functions except for sqlite3changeset_invert(),
which returns SQLITE_CORRUPT if it is passed a patchset. Similarly,
attempting to use a patchset blob with old versions of the
sqlite3changeset_xxx APIs also provokes an SQLITE_CORRUPT error.
Because the non-primary key "old.*" fields are omitted, no
SQLITE_CHANGESET_DATA conflicts can be detected or reported if a patchset
is passed to the sqlite3changeset_apply() API. Other conflict types work
in the same way as for changesets.
Changes within a patchset are ordered in the same way as for changesets
generated by the sqlite3session_changeset() function (i.e. all changes
for a single table are grouped together, tables appear in the order in
which they were attached to the session object).
FreeBSD 14.1-RELEASE-p8 December 19, 2018 FreeBSD 14.1-RELEASE-p8