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SQLITE3CHANGESET_OP(3) Library Functions Manual SQLITE3CHANGESET_OP(3)
NAME
sqlite3changeset_op - obtain the current operation from a changeset
iterator
SYNOPSIS
#include <sqlite3.h>
int
sqlite3changeset_op(sqlite3_changeset_iter *pIter, const char **pzTab,
int *pnCol, int *pOp, int *pbIndirect);
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. If this
is not the case, this function returns SQLITE_MISUSE.
Arguments pOp, pnCol and pzTab may not be NULL. Upon return, three
outputs are set through these pointers:
*pOp is set to one of SQLITE_INSERT, SQLITE_DELETE or SQLITE_UPDATE,
depending on the type of change that the iterator currently points to;
*pnCol is set to the number of columns in the table affected by the
change; and
*pzTab is set to point to a nul-terminated utf-8 encoded string
containing the name of the table affected by the current change. The
buffer remains valid until either sqlite3changeset_next() is called on
the iterator or until the conflict-handler function returns.
If pbIndirect is not NULL, then *pbIndirect is set to true (1) if the
change is an indirect change, or false (0) otherwise. See the
documentation for sqlite3session_indirect() for a description of direct
and indirect changes.
If no error occurs, SQLITE_OK is returned. If an error does occur, an
SQLite error code is returned. The values of the output variables may
not be trusted in this case.
IMPLEMENTATION NOTES
These declarations were extracted from the interface documentation at
line 11527.
SQLITE_API int sqlite3changeset_op(
sqlite3_changeset_iter *pIter, /* Iterator object */
const char **pzTab, /* OUT: Pointer to table name */
int *pnCol, /* OUT: Number of columns in table */
int *pOp, /* OUT: SQLITE_INSERT, DELETE or UPDATE */
int *pbIndirect /* OUT: True for an 'indirect' change */
);
SEE ALSO
sqlite3changeset_apply(3), sqlite3changeset_next(3),
sqlite3changeset_start(3), sqlite3session_indirect(3),
SQLITE_CREATE_INDEX(3), SQLITE_OK(3)
NetBSD 11.99 January 24, 2024 NetBSD 11.99