2 Makefile fixes

Per Rocco Altier.

literally.

Add GUC variables:

        "escape_string_warning" - warn about backslashes in non-E strings
        "escape_string_syntax" - supports E'' syntax?
        "standard_compliant_strings" - treats backslashes literally in ''

Update code to use E'' when escapes are used.

and RelationNameGetTupleDesc() as deprecated; remove uses of the
latter in the contrib library.  Along the way, clean up crosstab()
code and documentation a little.

them, the executation behavior could be unexpected.

methods in a short-lived memory context, there is no need for GiST methods
to do their own manual (and error-prone) memory management.

which is neither needed by nor related to that header.  Remove the bogus
inclusion and instead include the header in those C files that actually
need it.  Also fix unnecessary inclusions and bad inclusion order in
tsearch2 files.

that return INTERNAL without also having INTERNAL arguments.  Since the
functions in question aren't meant to be called by hand anyway, I just
redeclared them to take 'internal' instead of 'text'.  Also add code
to ProcedureCreate() to enforce the restriction, as I should have done
to start with :-(

2 implement gtsvector_out for use with gevel module (debug GiST indexes, http://www.sai.msu.su/~megera/postgres/gist/gevel/)

(It doesn't compile on HPUX either...)

regression=# select to_tsquery( '\'fotballklubber\'');
                   to_tsquery
------------------------------------------------
 'fotball' & 'klubb' | 'fot' & 'ball' & 'klubb'
(1 row)

So, changed interface to dictionaries, lexize method of dictionary shoud return
pointer to aray of TSLexeme structs instead of char**. Last element should
have TSLexeme->lexeme == NULL.

typedef struct {
        /* number of variant of split word , for example
                Word 'fotballklubber' (norwegian) has two varian to split:
                ( fotball, klubb ) and ( fot, ball, klubb ). So, dictionary
                should return:
                nvariant        lexeme
                1               fotball
                1               klubb
                2               fot
                2               ball
                2               klubb

        */
        uint16  nvariant;

        /* currently unused */
        uint16  flags;

        /* C-string */
        char    *lexeme;
} TSLexeme;

typedef struct {} WordEntryPos;
to
typedef uint16 WordEntryPos
according to http://www.pgsql.ru/db/mw/msg.html?mid=2035188

Require re-fill all tsvector fields and reindex tsvector indexes.

1 Report error message instead of do nothing in case of error in regex
2 Malloced storage for mask, find and repl part of Affix. This parts may be
  large enough in real life (for example in czech, thanks to moje <moje@kalhotky.net>)

warnings:

- remove pointless "extern" keyword from some function definitions in
contrib/tsearch2

- use "NULL" not "0" as NULL pointer in contrib/tsearch,
contrib/tsearch2, contrib/pgbench, and contrib/vacuumlo

getting rid of numerous ad-hoc versions that have popped up in various
places.  Shortens code and avoids conflict with Windows min() and max()
macros.

that a tsearch2 installation can be relocatable.

simplify life for the Win32 installer.  Per Dave Page.

mode see a fresh snapshot for each command in the function, rather than
using the latest interactive command's snapshot.  Also, suppress fresh
snapshots as well as CommandCounterIncrement inside STABLE and IMMUTABLE
functions, instead using the snapshot taken for the most closely nested
regular query.  (This behavior is only sane for read-only functions, so
the patch also enforces that such functions contain only SELECT commands.)
As per my proposal of 6-Sep-2004; I note that I floated essentially the
same proposal on 19-Jun-2002, but that discussion tailed off without any
action.  Since 8.0 seems like the right place to be taking possibly
nontrivial backwards compatibility hits, let's get it done now.

>
> The patch adds missing the "libpgport.a" file to the installation under
> "install-all-headers". It is needed by some contribs. I install the
> library in "pkglibdir", but I was wondering whether it should be "libdir"?
> I was wondering also whether it would make sense to have a "libpgport.so"?
>
> It fixes various macros which are used by contrib makefiles, especially
> libpq_*dir and LDFLAGS when used under PGXS. It seems to me that they are
> needed to
>
> It adds the ability to test and use PGXS with contribs, with "make
> USE_PGXS=1". Without the macro, this is exactly as before, there should be
> no difference, esp. wrt the vpath feature that seemed broken by previous
> submission. So it should not harm anybody, and it is useful at least to me.
>
> It fixes some inconsistencies in various contrib makefiles
> (useless override, ":=" instead of "=").

Fabien COELHO

and documentation to reference 8.0 instead of 7.5.

2 Rework support for html tags in parser
3 add HighlightAll to headline function for generating highlighted
  whole text with saved html tags

2 Optimize regex execution

2 remove select qeury in inserts