Updated: 2022/Sep/29
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SQLITE3CHANGESET_NEW(3) Library Functions Manual SQLITE3CHANGESET_NEW(3)
NAME
sqlite3changeset_new - obtain new.* values from a changeset iterator
SYNOPSIS
#include <sqlite3.h>
int
sqlite3changeset_new(sqlite3_changeset_iter *pIter, int iVal,
sqlite3_value **ppValue);
DESCRIPTION
The pIter argument passed to this function may either be an iterator
passed to a conflict-handler by sqlite3changeset_apply(), or an iterator
created by sqlite3changeset_start(). In the latter case, the most recent
call to sqlite3changeset_next() must have returned SQLITE_ROW.
Furthermore, it may only be called if the type of change that the
iterator currently points to is either SQLITE_UPDATE or SQLITE_INSERT.
Otherwise, this function returns SQLITE_MISUSE and sets *ppValue to NULL.
Argument iVal must be greater than or equal to 0, and less than the
number of columns in the table affected by the current change.
Otherwise, SQLITE_RANGE is returned and *ppValue is set to NULL.
If successful, this function sets *ppValue to point to a protected
sqlite3_value object containing the iVal'th value from the vector of new
row values stored as part of the UPDATE or INSERT change and returns
SQLITE_OK. If the change is an UPDATE and does not include a new value
for the requested column, *ppValue is set to NULL and SQLITE_OK returned.
The name of the function comes from the fact that this is similar to the
"new.*" columns available to update or delete triggers.
If some other error occurs (e.g. an OOM condition), an SQLite error code
is returned and *ppValue is set to NULL.
IMPLEMENTATION NOTES
These declarations were extracted from the interface documentation at
line 11501.
SQLITE_API int sqlite3changeset_new(
sqlite3_changeset_iter *pIter, /* Changeset iterator */
int iVal, /* Column number */
sqlite3_value **ppValue /* OUT: New value (or NULL pointer) */
);
SEE ALSO
sqlite3changeset_apply(3), sqlite3changeset_next(3),
sqlite3changeset_start(3), SQLITE_CREATE_INDEX(3), SQLITE_OK(3)
NetBSD 10.99 August 24, 2023 NetBSD 10.99