rhdb-explain1

Usage

Overview

This manual page documents briefly the program rhdb-explain.

This manual page was written for the Debian distribution because the original program does not have a manual page.

rhdb-explain is Visual Explain, an interactive tool for visualizing the output of the PostgreSQL EXPLAIN and EXPLAIN ANALYZE commands. EXPLAIN and EXPLAIN ANALYZE show the users the query plan that a PostgreSQL backend produces for a given optimizable query. The default form of this plan is a plain-text tree, which, while easy to read for simple queries, becomes progressilvely more difficult to interpret as query complexity increases. By visualizing the text output of EXPLAIN/EXPLAIN ANALYZE in an appropriate manner, the difficulty of interpreting query plans drops significantly.