上次写完了 postgresql中querytree内存结构 ,接下来就是又让你激动,又让你觉得神秘的plantree了。 先看看src/backend/optimizer的readme: Optimizer ========= These directories take the Query structure returned by the parser, and generate a plan used by the executor. The /plan directory generates ...
postgres@hillpig-desktop:~$ postmaster --help postmaster is the PostgreSQL server. Usage: postmaster ... Options: -A 1|0 enable/disable run-time assert checking -B NBUFFERS number of shared buffers -c NAME=VALUE s ...