# HG changeset patch # User Kim Alvefur # Date 1510242636 -3600 # Node ID fbb9a1c2120eff8807d64256d4ccd475780eed61 # Parent 4892c22403d5fe8c1ca2fd524ae0ee58cb51765a mod_storage_sql: Add support for truncating deletion diff -r 4892c22403d5 -r fbb9a1c2120e plugins/mod_storage_sql.lua --- a/plugins/mod_storage_sql.lua Fri Nov 10 09:44:30 2017 +0100 +++ b/plugins/mod_storage_sql.lua Thu Nov 09 16:50:36 2017 +0100 @@ -374,7 +374,35 @@ end archive_where(query, args, where); archive_where_id_range(query, args, where); - sql_query = sql_query:format(t_concat(where, " AND ")); + if query.truncate == nil then + sql_query = sql_query:format(t_concat(where, " AND ")); + else + args[#args+1] = query.truncate; + local unlimited = "ALL"; + if engine.params.driver == "SQLite3" then + sql_query = [[ + DELETE FROM "prosodyarchive" + WHERE %s + ORDER BY "sort_id" %s + LIMIT %s OFFSET ?; + ]]; + unlimited = "-1"; + else + sql_query = [[ + DELETE FROM "prosodyarchive" + WHERE "sort_id" IN ( + SELECT "sort_id" FROM "prosodyarchive" + WHERE %s + ORDER BY "sort_id" %s + LIMIT %s OFFSET ? + );]]; + if engine.params.driver == "MySQL" then + unlimited = "18446744073709551615"; + end + end + sql_query = string.format(sql_query, t_concat(where, " AND "), + query.reverse and "ASC" or "DESC", unlimited); + end return engine:delete(sql_query, unpack(args)); end); return ok and stmt:affected(), stmt;