Virtual Table Cursor Object

Virtual Table Cursor Object

struct sqlite3_vtab_cursor {
  sqlite3_vtab *pVtab;      /* Virtual table of this cursor */
  /* Virtual table implementations will typically add additional fields */
};

Every virtual table module implementation uses a subclass of the following structure to describe cursors that point into the virtual table and are used to loop through the virtual table. Cursors are created using the xOpen method of the module and are destroyed by the xClose method. Cursors are used by the xFilter, xNext, xEof, xColumn, and 登录查看完整内容