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Fix some missing and out-of-date comments in the sessions module.

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FossilOrigin-Name: 05c1d9149b27c68e2654ed28491722927d2176f5
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dan
2014-08-16 19:01:00 +00:00
parent 64277f4a70
commit a71d2371d0
4 changed files with 55 additions and 18 deletions
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20
ext/session/sqlite3session.h
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@ -275,6 +275,26 @@ int sqlite3session_changeset(
/*
** CAPI3REF: Generate A Patchset From A Session Object
**
** The differences between a patchset and a changeset are that:
**
** <ul>
** <li> DELETE records consist of the primary key fields only. The
** original values of other fields are omitted.
** <li> The original values of any modified fields are omitted from
** UPDATE records.
** </ul>
**
** 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.
*/
int sqlite3session_patchset(
sqlite3_session *pSession, /* Session object */