PostgreSQL is implemented using a simple "process per user" client/server model. In this model there is one

The GIN interface has a high level of abstraction, requiring the access method implementer only to implement the semantics of the data type

This section covers implementation details and other tricks that are useful for implementers of SP-GiST operator classes to know.

Among all relational operators the most difficult one to process and optimize is the join. The number of possible query plans grows exponentially with

The core PostgreSQL distribution includes the GIN operator classes shown in Table 63-1. (Some of the optional

The following resources contain additional information about genetic algorithms:

61.4.1. GiST buffering build Building large GiST indexes by simply inserting all the tuples tends to be slow, because if the index

Here we give a short overview of the stages a query has to pass in order to obtain a result.

The parser stage consists of two parts: The parser defined in gram

The GEQO module approaches the query optimization problem as though it were the well-known traveling salesman problem (