.../source The source code for the INGRES system lives in this directory. RECOMPILATION To recompile the system, use: cd conf; make allclean allinstall This wil, clean out all objects from everywhere and then recompile and install the entire system. This can be expected to take about 1.5 hours. RÏED MAP conf Configuration files for the system. This is the "main" directory -- the Makefile in this directory applies to the entire system, rather than just the particular module. ctliod The control module. This module provides interprocess communication and provides certain system functions. It might be considered the "kernel" of the system. dbu Database utilities. These are things like print, help, copy, ksort, etc. decomp Decomposition. This module does query optimization. equel The EQUEL preprocessor. gutil General utilities. These are not particular to INGRES, although they were written for INGRES. h Header files. iutil INGRES utilities. This includes the old "access" library. This directory has the access methods and utility routines that are used throughout INGRES, but have no meaning outside of the INGRES context. libq The EQUEL runtime support. monitor The terminal monitor (front end). ovqp One Variable Query Processor. This is the "search engine" (basically a big interpreter). parser The parser. Takes text and produces query trees. qrymod Query Modification. This module supports views, integrity, and protection. support All programs that are to be run from the shell are in this directory.