1 files changed, 36 insertions, 6 deletions

diff --git a/c/sqlite3.h b/c/sqlite3.h
index 33dbec2..f0df724 100644
--- a/c/sqlite3.h
+++ b/c/sqlite3.h
@@ -146,9 +146,9 @@ extern "C" {
 ** [sqlite3_libversion_number()], [sqlite3_sourceid()],
 ** [sqlite_version()] and [sqlite_source_id()].
 */
-#define SQLITE_VERSION        "3.38.2"
-#define SQLITE_VERSION_NUMBER 3038002
-#define SQLITE_SOURCE_ID      "2022-03-26 13:51:10 d33c709cc0af66bc5b6dc6216eba9f1f0b40960b9ae83694c986fbf4c1d6f08f"
+#define SQLITE_VERSION        "3.39.2"
+#define SQLITE_VERSION_NUMBER 3039002
+#define SQLITE_SOURCE_ID      "2022-07-21 15:24:47 698edb77537b67c41adc68f9b892db56bcf9a55e00371a61420f3ddd668e6603"
 
 /*
 ** CAPI3REF: Run-Time Library Version Numbers
@@ -5593,7 +5593,8 @@ SQLITE_API unsigned int sqlite3_value_subtype(sqlite3_value*);
 ** object D and returns a pointer to that copy.  ^The [sqlite3_value] returned
 ** is a [protected sqlite3_value] object even if the input is not.
 ** ^The sqlite3_value_dup(V) interface returns NULL if V is NULL or if a
-** memory allocation fails.
+** memory allocation fails. ^If V is a [pointer value], then the result
+** of sqlite3_value_dup(V) is a NULL value.
 **
 ** ^The sqlite3_value_free(V) interface frees an [sqlite3_value] object
 ** previously obtained from [sqlite3_value_dup()].  ^If V is a NULL pointer
@@ -6276,6 +6277,28 @@ SQLITE_API int sqlite3_get_autocommit(sqlite3*);
 SQLITE_API sqlite3 *sqlite3_db_handle(sqlite3_stmt*);
 
 /*
+** CAPI3REF: Return The Schema Name For A Database Connection
+** METHOD: sqlite3
+**
+** ^The sqlite3_db_name(D,N) interface returns a pointer to the schema name
+** for the N-th database on database connection D, or a NULL pointer of N is
+** out of range.  An N value of 0 means the main database file.  An N of 1 is
+** the "temp" schema.  Larger values of N correspond to various ATTACH-ed
+** databases.
+**
+** Space to hold the string that is returned by sqlite3_db_name() is managed
+** by SQLite itself.  The string might be deallocated by any operation that
+** changes the schema, including [ATTACH] or [DETACH] or calls to
+** [sqlite3_serialize()] or [sqlite3_deserialize()], even operations that
+** occur on a different thread.  Applications that need to
+** remember the string long-term should make their own copy.  Applications that
+** are accessing the same database connection simultaneously on multiple
+** threads should mutex-protect calls to this API and should make their own
+** private copy of the result prior to releasing the mutex.
+*/
+SQLITE_API const char *sqlite3_db_name(sqlite3 *db, int N);
+
+/*
 ** CAPI3REF: Return The Filename For A Database Connection
 ** METHOD: sqlite3
 **
@@ -9554,8 +9577,8 @@ SQLITE_API SQLITE_EXPERIMENTAL const char *sqlite3_vtab_collation(sqlite3_index_
 ** of a [virtual table] implementation. The result of calling this
 ** interface from outside of xBestIndex() is undefined and probably harmful.
 **
-** ^The sqlite3_vtab_distinct() interface returns an integer that is
-** either 0, 1, or 2.  The integer returned by sqlite3_vtab_distinct()
+** ^The sqlite3_vtab_distinct() interface returns an integer between 0 and
+** 3.  The integer returned by sqlite3_vtab_distinct()
 ** gives the virtual table additional information about how the query
 ** planner wants the output to be ordered. As long as the virtual table
 ** can meet the ordering requirements of the query planner, it may set
@@ -9587,6 +9610,13 @@ SQLITE_API SQLITE_EXPERIMENTAL const char *sqlite3_vtab_collation(sqlite3_index_
 ** that have the same value for all columns identified by "aOrderBy".
 ** ^However omitting the extra rows is optional.
 ** This mode is used for a DISTINCT query.
+** <li value="3"><p>
+** ^(If the sqlite3_vtab_distinct() interface returns 3, that means
+** that the query planner needs only distinct rows but it does need the
+** rows to be sorted.)^ ^The virtual table implementation is free to omit
+** rows that are identical in all aOrderBy columns, if it wants to, but
+** it is not required to omit any rows.  This mode is used for queries
+** that have both DISTINCT and ORDER BY clauses.
 ** </ol>
 **
 ** ^For the purposes of comparing virtual table output values to see if the