Incremental BLOB I/O makes certain assertions that cannot be guaranteed (much less verified at runtime) for virtual tables (e.g. 1: unique rowids that 2: can be used for access) and needs to know how to read/write them (which is under the control of the virtual table author).
-----Urspr?ngliche Nachricht----- Von: Evans, Randall [mailto:REvans at seasoft.com] Gesendet: Dienstag, 24. Februar 2015 01:47 An: sqlite-users at mailinglists.sqlite.org Betreff: [sqlite] Using incremental BLOB functions against a BLOB column in a virtual table Can the incremental BLOB functions (sqlite_blob_open(), sqlite_blob_read(), etc) access BLOB column data defined in a SQLite virtual table? If it matters, I am only interested in read-only access at this time. If the answer is yes, is there any facility in virtual table support for xColumn or any other method that will expose to the virtual table module the positioning/length values supplied as the 3rd and 4th arguments of the sqlite_blob_read() function (N bytes and offset values)? Randy Evans _______________________________________________ sqlite-users mailing list sqlite-users at mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users ___________________________________________ Gunter Hick Software Engineer Scientific Games International GmbH FN 157284 a, HG Wien Klitschgasse 2-4, A-1130 Vienna, Austria Tel: +43 1 80100 0 E-Mail: hick at scigames.at This communication (including any attachments) is intended for the use of the intended recipient(s) only and may contain information that is confidential, privileged or legally protected. Any unauthorized use or dissemination of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender by return e-mail message and delete all copies of the original communication. Thank you for your cooperation.
