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Command: SQLITE_PREPARE_PERSISTENT | Section: 3 | Source: NetBSD | File: SQLITE_PREPARE_PERSISTENT.3
SQLITE_PREPARE_PERSISTENT(3) FreeBSD Library Functions Manual
NAME
SQLITE_PREPARE_PERSISTENT, SQLITE_PREPARE_NORMALIZE - Prepare Flags
SYNOPSIS
#define SQLITE_PREPARE_PERSISTENT
#define SQLITE_PREPARE_NORMALIZE
DESCRIPTION
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.
SEE ALSO
sqlite3_finalize(3), sqlite3_sql(3), sqlite3_prepare(3)
FreeBSD 14.1-RELEASE-p8 December 19, 2018 FreeBSD 14.1-RELEASE-p8