Materialized views are not free. Each incremental view attached to a table must run its SELECT on every insert, and each execution creates a new part in the target table. Attaching too many views — more than 50 is typically excessive — will slow inserts significantly, both from the compute overhead of running each view and from the part pressure generated across all target tables. This can cascade into the "Too Many Parts" issue discussed earlier. Where possible, consolidate views that perform similar transformations, and consider whether the setting parallel_view_processing can help by running views concurrently rather than sequentially.
because this is what it means to care.，这一点在新收录的资料中也有详细论述
留着络腮胡的德国人杨新，是博恩斯坦电子（太仓）有限公司总经理，已在太仓生活15年，练就了一口字正腔圆的普通话，还擅长烹饪中餐，能写毛笔字、吹奏竹笛，是名副其实的“中国通”。他说：“在太仓工作生活很舒心、很安心，这里的人们热情友善，生活便捷宜居，这里就是我的‘第二故乡’。”，推荐阅读PDF资料获取更多信息
Begg notes that it's unusual for a CEO on both counts.，更多细节参见新收录的资料
# Sandboxed — the default. Just type the command name.