Hi to All, Iam new to the group and to postgresql. Currently Iam trying to understand how does the planner work by using gdb. During the execution of a plan I observed a variable "BTREE_MAGIC" which is defined 0x053162 and called, 'the magic number of btree pages'. I couldnt understand the concept behind the 'magic number' and the "0x053162". Can anyone kindly explain the significance of the 'magic number of btree pages' or refer to some document where I can get idea about this.
