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- The source code for the INGRES system lives in this directory.
-
- RECOMPILATION
-
- To recompile the system, use:
-
- cd conf; make allclean allinstall
-
- This will clean out all objects from everywhere and then recompile
- and install the entire system. This can be expected to take about
- 1.5 hours.
-
- ROAD 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.
- ctlmod
- 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.
-
- Note for SUN users:
- This release will compile on the SUN workstation but it is
- untested and known to have problems with equel programs. To compile
- for the SUN add 'CPUTYPE=SUN' to the make command or change
- conf/Makefile.
-
- Known bugs:
- There is only one known bug with this version of INGRES on
- VAXs running 4.3 BSD UNIX. The bug is as follows:
- The quel statement
- retrieve (a.foo) where count(a.bar by a.foo)=max(count(a.bar by a.foo))
- will work but
- retrieve (a.foo) where max(count(a.bar by a.foo))=count(a.bar by a.foo)
- will not. In general the problem is in queries with clauses of the
- form simpleagg(aggfunc())=thesameaggfunc() as such a clause does not
- connect the 'by' clause of the aggfunc with the rest of the query.
-