data: Document that regexes are extended, case-insensitive POSIX regexes.

diff --git a/src/include/core/data.h b/src/include/core/data.h
index a81cea45b5b6e5f52d5c6ba671f5b2ae42aa1e3c..87607f810d344fc87d7bbc5943d16caaaa7fe9d7 100644 (file)
--- a/src/include/core/data.h
+++ b/src/include/core/data.h
@@ -46,7 +46,7 @@ enum {
        SDB_TYPE_STRING,
        SDB_TYPE_DATETIME,
        SDB_TYPE_BINARY,
-       SDB_TYPE_REGEX,
+       SDB_TYPE_REGEX, /* extended, case-insensitive POSIX regex */
 };
 
 #define SDB_TYPE_TO_STRING(t) \