David Turover

error report for getaddrinfo failures, point at correct token for syntax
errors in all cases, don't log redundant messages.

> * -Make pg_restore continue after errors, so it acts more like pg_dump scripts

    case $host_platform in
        *-*-cygwin*|*-*-mingw)
            PATH=$libdir:$PATH
            export PATH
            ;;
    esac

Per report from Christopher.

right error code previously, and this patch applies an analogous change
to numeric_sqrt().

so we make is_absolute_path a macro so libpq doesn't use path.o.

used by zic anyway.

rule's event_qual, not only to the rule's action.  Per example from
Arturs Zoldners.

timezone code and other places.

Remove elog() calls from find_my_exec;  do fprintf(stderr) instead.  We
can then remove the exec.c handling in the makefile because it doesn't
have to be built to suppress elog calls.

> * Allow binaries to be statically linked so they are more easily relocated

Viktor Vislobokov

this commit enables only for Mingw.

Andrew Dunstan

locations are overridden.

Create new get_* functions to access compiled-in paths and adjust if
relative installs are to be used.

Clean up substitute_libpath_macro() code.

examples to use dollar quoting when appropriate. Original patch from David
Fetter, additional work and editorializing by Neil Conway.

error codes for certain error conditions, as specified by SQL2003.

a variant of the function for the 'numeric' datatype; it would be possible
to add additional variants for other datatypes, but I haven't done so yet.

This commit includes regression tests and minimal documentation; if we
want developers to actually use this function in applications, we'll
probably need to document what it does more fully.