postgresql postgres：实体化视图的部分刷新？这种情况的一个替代方案是将timescaledb扩展与continuous aggreg...
Once you run REFRESH MATERIALIZED VIEW, we’ll end up with the new data in our materialized view, like so:The thing is, REFRESHing a view can be expensive, and to understand why we should understand a bit more about how they work and why they get out of date....
REFRESH MATERIALIZED VIEW recent_product_sales; In addition to building the materialized view, Postgres will have to rebuild the index from scratch. Depending on data size, this can be a pretty long operation. Concurrent (non-locking) refresh This refresh will update the materialized view without...
In PostgreSQL 11, such queries can still execute in parallel when called within commands CREATE TABLE AS, SELECT INTO and CREATE MATERIALIZED VIEW (and in version 14 and higher also within REFRESH MATERIALIZED VIEW). All INSERT operations will still execute sequentially even in these cases, however...
local] js@wos=# REFRESH MATERIALIZED VIEW wos_2017_1.citation_window_mv ; server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. The connection to the server was lost. Attempting reset: Failed. ...