SQLITE_PREPARE_PERSISTENT,
  SQLITE_PREPARE_NORMALIZE —
Prepare Flags
#define SQLITE_PREPARE_PERSISTENT
#define SQLITE_PREPARE_NORMALIZE
These constants define various flags that can be passed into
  "prepFlags" parameter of the sqlite3_prepare_v3() and
  sqlite3_prepare16_v3() interfaces.
New flags may be added in future releases of SQLite.
  - SQLITE_PREPARE_PERSISTENT
- The SQLITE_PREPARE_PERSISTENT flag is a hint to the query planner that the
      prepared statement will be retained for a long time and probably reused
      many times. Without this flag, sqlite3_prepare_v3() and
      sqlite3_prepare16_v3() assume that the prepared statement will be used
      just once or at most a few times and then destroyed using
      sqlite3_finalize() relatively soon. The current implementation acts on
      this hint by avoiding the use of lookaside memory so as not to deplete the
      limited store of lookaside memory. Future versions of SQLite may act on
      this hint differently.
- SQLITE_PREPARE_NORMALIZE
- The SQLITE_PREPARE_NORMALIZE flag indicates that a normalized
      representation of the SQL statement should be calculated and then
      associated with the prepared statement, which can be obtained via the
      sqlite3_normalized_sql() interface. The semantics used to normalize a SQL
      statement are unspecified and subject to change. At a minimum, literal
      values will be replaced with suitable placeholders.