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-rw-r--r--src/sqlite.h.in4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/sqlite.h.in b/src/sqlite.h.in
index 06445d444..1e4389215 100644
--- a/src/sqlite.h.in
+++ b/src/sqlite.h.in
@@ -5620,7 +5620,9 @@ SQLITE_DEPRECATED void sqlite3_soft_heap_limit(int N);
** ^If the column-name parameter to sqlite3_table_column_metadata() is a
** NULL pointer, then this routine simply checks for the existence of the
** table and returns SQLITE_OK if the table exists and SQLITE_ERROR if it
-** does not.
+** does not. If the table name parameter T in a call to
+** sqlite3_table_column_metadata(X,D,T,C,...) is NULL then the result is
+** undefined behavior.
**
** ^The column is identified by the second, third and fourth parameters to
** this function. ^(The second parameter is either the name of the database