1
0
mirror of https://github.com/postgres/postgres.git synced 2025-07-27 12:41:57 +03:00

Move contrib/odbc/odbc.sql together with odbc driver, remove old files;

revise ODBC "installation instructions"; update some other outdated
documentation; update contrib documentation
This commit is contained in:
Peter Eisentraut
2000-09-18 20:11:37 +00:00
parent 7cce011178
commit 2acdef186d
14 changed files with 275 additions and 1388 deletions

View File

@ -1,82 +0,0 @@
The PostgreSQL contrib:
~~~~~~~~~~~~~~~~~~~~~~
tips/apache_logging -
Getting Apache to log to PostgreSQL
by Terry Mackintosh <terry@terrym.com>
array -
Array iterator functions
by Massimo Dal Zotto <dz@cs.unitn.it>
earthdistance -
Operator for computing earth distance for two points
by Hal Snyder <hal@vailsys.com>
findoidjoins -
Finds the joins used by oid columns by examining the actual
values in the oid columns and row oids.
by Bruce Momjian <root@candle.pha.pa.us>
fulltextindex -
Full text indexing using triggers
by Maarten Boekhold <maartenb@dutepp0.et.tudelft.nl>
isbn_issn -
PostgreSQL type extensions for ISBN (books) and ISSN (serials)
by Garrett A. Wollman <wollman@khavrinen.lcs.mit.edu>
linux -
Start postgres back end system
by Thomas Lockhart <lockhart@alumni.caltech.edu>
lo -
Large Object maintenance
by Peter Mount <peter@retep.org.uk>
miscutil -
Postgres assert checking and various utility functions
by Dal Zotto <dz@cs.unitn.it>
mSQL-interface -
mSQL API translation library
by Aldrin Leal <aldrin@americasnet.com>
noupdate -
trigger to prevent updates on single columns
pg_dumplo -
Dump large objects
by Karel Zak <zakkr@zf.jcu.cz>
soundex -
Prototype for soundex function
spi -
A general trigger function autoinc() and so on.
string -
C-like input/output conversion routines for strings
by Massimo Dal Zotto <dz@cs.unitn.it>
tools -
Assorted developer tools
by Massimo Dal Zotto <dz@cs.unitn.it>
unixdate -
Conversions from integer to datetime
by Thomas Lockhart <lockhart@alumni.caltech.edu>
userlock -
User locks
by Massimo Dal Zotto <dz@cs.unitn.it>
vacuumlo -
Remove orphaned large objects
by Peter T Mount <peter@retep.org.uk>
pgbench -
TPC-B like benchmarking tool
by Tatsuo Ishii <t-ishii@sra.co.jp>

View File

@ -1,12 +1,8 @@
#
# The PostgreSQL contrib tree Makefile
#
# $Header: /cvsroot/pgsql/contrib/Makefile,v 1.7 2000/07/16 14:50:29 petere Exp $
#
# $Header: /cvsroot/pgsql/contrib/Makefile,v 1.8 2000/09/18 20:11:34 petere Exp $
subdir = contrib
top_builddir = ..
include ../src/Makefile.global
include $(top_builddir)/src/Makefile.global
WANTED_DIRS = array \
earthdistance \
@ -16,6 +12,7 @@ WANTED_DIRS = array \
linux \
lo \
mSQL-interface \
mac \
miscutil \
noupdate \
pg_dumplo \
@ -27,19 +24,10 @@ WANTED_DIRS = array \
unixdate \
userlock \
vacuumlo
# odbc
all install installdirs uninstall clean distclean maintainer-clean:
for dir in $(WANTED_DIRS); do \
if [ -e $$dir/Makefile ]; then \
$(MAKE) -C $$dir $@ ; \
$(MAKE) -C $$dir $@; \
fi; \
done
install:
for dir in $(WANTED_DIRS); do \
if [ -e $$dir/Makefile ]; then \
$(MAKE) -C $$dir $@ ; \
fi; \
done
$(INSTALL_DATA) Contrib.index $(docdir)/contrib

View File

@ -1,81 +1,109 @@
The PostgreSQL contrib tree
~~~~~~~~~~~~~~~~~~~~~~~~~~~
The PostgreSQL contrib tree
~~~~~~~~~~~~~~~~~~~~~~~~~~~
This subtree contains tools, modules, and examples that are not
maintained as part of the core PostgreSQL system, mainly because
they only address a limited audience or are too inelegant to be
sold as an official feature. That, however, does not preclude
their usefulness.
FIXME:
odbc
spi/preprocessor
tools
Each subdirectory contains a README file with information about the
module. Most items can be built with `gmake all' and installed
with `gmake install' in the usual fashion, after you have run the
`configure' script in the top-level directory. Some directories
supply new user-defined functions, operators, or types. After you
have installed the files you need to register the new entities in
the database system by running the commands in the supplied .sql
file. For example,
- the contrib contain is in the "Contrib.index"
$ psql -d dbname -f module.sql
- in each directory must be Makefile, possible Makefile template
is below this text,
--------
#
# $Header: /cvsroot/pgsql/contrib/README,v 1.19 2000/06/19 13:52:59 momjian Exp $
#
TOPDIR=../..
include ../Makefile.global
NAME = some_name
PROGRAM =
OBJS = $(NAME).o
DOCS = $(NAME).doc
SQLS = $(NAME).sql
BINS =
EXAMPLES=
MODS = $(NAME)$(DLSUFFIX)
CFLAGS += -I. $(CFLAGS_SL)
OTHER_CLEAN = $(SQLS)
all: $(MODS) $(SQLS)
%.sql: %.sql.in
$(SED) "s|MODULE_PATHNAME|$(CONTRIB_MODDIR)/$@|" < $< > $@
See the PostgreSQL documentation for more information about this
procedure.
install: install_doc install_sql install_mod install_bin install_example
Index:
------
install_doc:
for inst_file in $(DOCS); do \
$(INSTALL) $(INSTL_LIB_OPTS) $$inst_file $(CONTRIB_DOCDIR); \
done
array -
Array iterator functions
by Massimo Dal Zotto <dz@cs.unitn.it>
install_sql:
for inst_file in $(SQLS); do \
$(INSTALL) $(INSTL_LIB_OPTS) $$inst_file $(CONTRIB_SQLDIR); \
done
earthdistance -
Operator for computing earth distance for two points
by Hal Snyder <hal@vailsys.com>
install_mod:
for inst_file in $(MODS); do \
$(INSTALL) $(INSTL_SHLIB_OPTS) $$inst_file $(CONTRIB_MODDIR); \
done
findoidjoins -
Finds the joins used by oid columns by examining the actual
values in the oid columns and row oids.
by Bruce Momjian <pgman@candle.pha.pa.us>
install_bin:
for inst_file in $(BINS); do \
$(INSTALL) $(INSTL_EXE_OPTS) $$inst_file $(CONTRIB_BINDIR); \
done
fulltextindex -
Full text indexing using triggers
by Maarten Boekhold <maartenb@dutepp0.et.tudelft.nl>
install_example:
for inst_file in $(EXAMPLES); do \
$(INSTALL) $(INSTL_LIB_OPTS) $$inst_file $(CONTRIB_EXAMPLESDIR); \
done
isbn_issn -
PostgreSQL type extensions for ISBN (books) and ISSN (serials)
by Garrett A. Wollman <wollman@khavrinen.lcs.mit.edu>
depend dep:
$(CC) -MM -MG $(CFLAGS) *.c > depend
linux -
Scripts for starting and stopping the PostgreSQL server on
a Linux system
by Thomas Lockhart <lockhart@alumni.caltech.edu>
clean:
$(RM) *~ $(OBJS) $(MODS) $(PROGRAM) depend $(OTHER_CLEAN) core log
lo -
Large Object maintenance
by Peter Mount <peter@retep.org.uk>
ifeq (depend,$(wildcard depend))
include depend
endif
-----------
mSQL-interface -
mSQL API translation library
by Aldrin Leal <aldrin@americasnet.com>
mac -
Support functions for MAC address types
by Lawrence E. Rosenman <ler@lerctr.org>
miscutil -
PostgreSQL assert checking and various utility functions
by Massimo Dal Zotto <dz@cs.unitn.it>
noupdate -
trigger to prevent updates on single columns
pgbench -
TPC-B like benchmarking tool
by Tatsuo Ishii <t-ishii@sra.co.jp>
pg_dumplo -
Dump large objects
by Karel Zak <zakkr@zf.jcu.cz>
soundex -
Soundex function
spi -
Various trigger functions, examples for using SPI.
string -
C-like input/output conversion routines for strings
by Massimo Dal Zotto <dz@cs.unitn.it>
tips/apache_logging -
Getting Apache to log to PostgreSQL
by Terry Mackintosh <terry@terrym.com>
tools -
Assorted developer tools
by Massimo Dal Zotto <dz@cs.unitn.it>
unixdate -
Conversions from integer to datetime
by Thomas Lockhart <lockhart@alumni.caltech.edu>
userlock -
User locks
by Massimo Dal Zotto <dz@cs.unitn.it>
vacuumlo -
Remove orphaned large objects
by Peter T Mount <peter@retep.org.uk>

8
contrib/mac/README.mac Normal file
View File

@ -0,0 +1,8 @@
This directory contains tools to create a mapping table from MAC
addresses (e.g., Ethernet hardware addresses) to human-readable
manufacturer strings. The `createoui' script builds the table
structure, `updateoui' obtains the current official mapping table
from the web site of the IEEE, converts it, and stores it in the
database, `dropoui' removes everything. Use the --help option to
get more usage information from the respective script. All three
use the psql program; any extra arguments will be passed to psql.

View File

@ -1,48 +0,0 @@
# ODBC extensions
# Thomas Lockhart 2000-04-03
subdir = contrib/odbc
top_builddir = ../..
include $(top_builddir)/src/Makefile.global
ifndef PGLIB
PGLIB= .
endif
CFLAGS+= $(CFLAGS_SL)
TARGETS_7= odbc.sql
TARGETS_PRE7= odbc$(DLSUFFIX) odbc-pre7.sql
TARGETS= $(TARGETS_7)
CLEANFILES+= $(TARGETS) $(TARGETS_PRE7)
all: $(TARGETS)
install: all
ifneq ($(filter odbc$(DLSUFFIX), $(TARGETS)),)
-test -d $(PGLIB) || $(INSTALL) -d $(PGLIB)
$(INSTALL) odbc$(DLSUFFIX) $(PGLIB)
endif
pre7:
$(MAKE) TARGETS="$(TARGETS) $(TARGETS_PRE7)"
install-pre7:
$(MAKE) TARGETS="$(TARGETS) $(TARGETS_PRE7)" install
odbc-pre7.sql: odbc-pre7.source odbc.sql
rm -f $@; \
cat $^ \
| sed -e "s:_OBJWD_:$(PGLIB):g" \
-e "s:_DLSUFFIX_:$(DLSUFFIX):g" \
-e "s:float(15):float8:g" > $@
%.sql: %.source
rm -f $@; \
sed -e "s:_OBJWD_:$(PGLIB):g" \
-e "s:_DLSUFFIX_:$(DLSUFFIX):g" < $< > $@
clean:
rm -f $(TARGETS) *.o

View File

@ -1,38 +0,0 @@
This directory contains support functions for the ODBC driver
supplied with PostgreSQL-7.0.
To enable additional ODBC functions with PostgreSQL-7.0, simply
execute the commands in odbc.sql:
psql
Welcome to psql, the PostgreSQL interactive terminal.
Type: \copyright for distribution terms
\h for help with SQL commands
\? for help on internal slash commands
\g or terminate with semicolon to execute query
\q to quit
postgres=# \i odbc.sql
CREATE
...
To enable additional ODBC functions with versions of PostgreSQL
prior to PostgreSQL-7.0 (e.g. PostgreSQL-6.5.3), build the shared
library and SQL commands as follows:
make pre7
psql
Welcome to psql, the PostgreSQL interactive terminal.
Type: \copyright for distribution terms
\h for help with SQL commands
\? for help on internal slash commands
\g or terminate with semicolon to execute query
\q to quit
postgres=# \i odbc-pre7.sql
CREATE
...

View File

@ -1,162 +0,0 @@
-- ODBC-pre7.sql
--
-- Use float8 rather than float(15) since pre-7.0 does not accept
-- SQL92 type names of this form in the CREATE FUNCTION command.
--
--
-- Character string manipulation
--
--
-- Compatibility functions for pre-v7.0.
-- These should be applied to pre-v7.0 databases
-- when using the v7.0 ODBC driver.
--
CREATE FUNCTION char_length(text)
RETURNS integer
AS 'SELECT length(CAST($1 AS text))'
LANGUAGE 'SQL';
CREATE FUNCTION pow(float8)
RETURNS float8
AS 'SELECT dpow($1)'
LANGUAGE 'SQL';
--
-- Extensions for ODBC compliance in v7.0.
-- In the current driver, ODBC functions must map directly into a
-- Postgres function. So in some cases we must create a compatible
-- function.
--
CREATE FUNCTION ascii(text)
RETURNS integer
AS '_OBJWD_/odbc_DLSUFFIX_', 'ascii'
LANGUAGE 'C';
CREATE FUNCTION ichar(integer)
RETURNS char(1)
AS '_OBJWD_/odbc_DLSUFFIX_', 'ichar'
LANGUAGE 'C';
CREATE FUNCTION insert(text, integer, integer, text)
RETURNS text
AS '_OBJWD_/odbc_DLSUFFIX_', 'insert'
LANGUAGE 'C';
-- replace all occurences of $2 with $3
CREATE FUNCTION replace(text, text, text)
RETURNS text
AS '_OBJWD_/odbc_DLSUFFIX_', 'replace'
LANGUAGE 'C';
-- return the string repeated n times
CREATE FUNCTION repeat(text, integer)
RETURNS text
AS '_OBJWD_/odbc_DLSUFFIX_', 'repeat'
LANGUAGE 'C';
--
-- Mathematical functions for pre-v7.0
--
CREATE FUNCTION dround(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dround'
LANGUAGE 'C';
CREATE FUNCTION round(float8)
RETURNS float8
AS 'SELECT dround($1)'
LANGUAGE 'SQL';
--
-- Math functions present in backend, but not in catalog for v7.0
--
CREATE FUNCTION acos(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dacos'
LANGUAGE 'C';
CREATE FUNCTION asin(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dasin'
LANGUAGE 'C';
CREATE FUNCTION atan(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'datan'
LANGUAGE 'C';
CREATE FUNCTION atan2(float8,float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'datan2'
LANGUAGE 'C';
CREATE FUNCTION cos(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dcos'
LANGUAGE 'C';
CREATE FUNCTION cot(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dcot'
LANGUAGE 'C';
CREATE FUNCTION sin(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dsin'
LANGUAGE 'C';
CREATE FUNCTION dtan(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dtan'
LANGUAGE 'C';
CREATE FUNCTION degrees(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'degrees'
LANGUAGE 'C';
CREATE FUNCTION pi()
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'dpi'
LANGUAGE 'C';
CREATE FUNCTION radians(float8)
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'radians'
LANGUAGE 'C';
-- random number generator currently requires RAND_MAX be available
CREATE FUNCTION random()
RETURNS float8
AS '_OBJWD_/odbc_DLSUFFIX_', 'drandom'
LANGUAGE 'C';
CREATE FUNCTION truncate(numeric,integer)
RETURNS numeric
AS 'SELECT trunc($1, $2)'
LANGUAGE 'SQL';
--
-- Date/time functions for v7.0
--
CREATE FUNCTION interval_mul(interval,float8)
RETURNS interval
AS '_OBJWD_/odbc_DLSUFFIX_'
LANGUAGE 'C';
CREATE OPERATOR * (
LEFTARG = interval,
RIGHTARG = float8,
PROCEDURE = interval_mul
);

View File

@ -1,403 +0,0 @@
#include "postgres.h"
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <float.h> /* faked on sunos4 */
#include <math.h>
#include <limits.h>
#include "fmgr.h"
#include "utils/timestamp.h"
#include "utils/builtins.h"
int4 ascii(text *string);
text *ichar(int4 cvalue);
text *repeat(text *string, int4 count);
Interval *interval_mul(Interval *span1, float8 *arg2);
float64 dasin(float64 arg1);
float64 datan(float64 arg1);
float64 datan2(float64 arg1, float64 arg2);
float64 dcos(float64 arg1);
float64 dcot(float64 arg1);
float64 dsin(float64 arg1);
float64 dtan(float64 arg1);
float64 degrees(float64 arg1);
float64 dpi(void);
float64 radians(float64 arg1);
float64 drandom(void);
void setseed(int32 seed);
int4
ascii(text *string)
{
if (!PointerIsValid(string))
return 0;
if (VARSIZE(string) <= VARHDRSZ)
return 0;
return ((int) *(VARDATA(string)));
} /* ascii() */
text *
ichar(int4 cvalue)
{
text *result;
result = (text *) palloc(VARHDRSZ + 1);
VARSIZE(result) = VARHDRSZ + 1;
*VARDATA(result) = (char) cvalue;
return result;
} /* ichar() */
text *
repeat(text *string, int4 count)
{
text *result;
int slen, tlen;
int i;
char *cp;
if (count < 0)
count = 0;
slen = (VARSIZE(string)-VARHDRSZ);
tlen = (VARHDRSZ + (count * slen));
result = (text *) palloc(tlen);
VARSIZE(result) = tlen;
cp = VARDATA(result);
for (i = 0; i < count; i++)
{
memcpy(cp, VARDATA(string), slen);
cp += slen;
}
return result;
} /* ichar() */
Interval *
interval_mul(Interval *span1, float8 *arg2)
{
Interval *result;
double months;
if ((!PointerIsValid(span1)) || (!PointerIsValid(arg2)))
return NULL;
if (!PointerIsValid(result = palloc(sizeof(Interval))))
elog(ERROR, "Memory allocation failed, can't divide intervals");
months = (span1->month * *arg2);
result->month = rint(months);
result->time = JROUND(span1->time * *arg2);
result->time += JROUND((months - result->month) * 30);
return result;
} /* interval_mul() */
/*
* dasin - returns a pointer to the arcsin of arg1 (radians)
*/
float64
dasin(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) asin(tmp);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "dasin(%f) input is out of range", *arg1);
CheckFloat8Val(*result);
return result;
} /* dasin() */
/*
* datan - returns a pointer to the arctan of arg1 (radians)
*/
float64
datan(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) atan(tmp);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "atan(%f) input is out of range", *arg1);
CheckFloat8Val(*result);
return result;
} /* datan() */
/*
* atan2 - returns a pointer to the arctan2 of arg1 (radians)
*/
float64
datan2(float64 arg1, float64 arg2)
{
float64 result;
if (!PointerIsValid(arg1) || !PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
errno = 0;
*result = (float64data) atan2(*arg1, *arg2);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "atan2(%f,%f) input is out of range", *arg1, *arg2);
CheckFloat8Val(*result);
return result;
} /* datan2() */
/*
* dcos - returns a pointer to the cosine of arg1 (radians)
*/
float64
dcos(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) cos(tmp);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "dcos(%f) input is out of range", *arg1);
CheckFloat8Val(*result);
return result;
} /* dcos() */
/*
* dcot - returns a pointer to the cotangent of arg1 (radians)
*/
float64
dcot(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) tan(tmp);
if ((errno != 0) || (*result == 0.0)
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "dcot(%f) input is out of range", *arg1);
*result = 1.0/(*result);
CheckFloat8Val(*result);
return result;
} /* dcot() */
/*
* dsin - returns a pointer to the sine of arg1 (radians)
*/
float64
dsin(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) sin(tmp);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "dsin(%f) input is out of range", *arg1);
CheckFloat8Val(*result);
return result;
} /* dsin() */
/*
* dtan - returns a pointer to the tangent of arg1 (radians)
*/
float64
dtan(float64 arg1)
{
float64 result;
double tmp;
if (!PointerIsValid(arg1))
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
errno = 0;
*result = (float64data) tan(tmp);
if (errno != 0
#ifdef HAVE_FINITE
|| !finite(*result)
#endif
)
elog(ERROR, "dtan(%f) input is out of range", *arg1);
CheckFloat8Val(*result);
return result;
} /* dtan() */
#ifndef M_PI
/* from my RH5.2 gcc math.h file - thomas 2000-04-03 */
#define M_PI 3.14159265358979323846
#endif
/*
* degrees - returns a pointer to degrees converted from radians
*/
float64
degrees(float64 arg1)
{
float64 result;
if (!arg1)
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
*result = ((*arg1) * (180.0 / M_PI));
CheckFloat8Val(*result);
return result;
} /* degrees() */
/*
* dpi - returns a pointer to degrees converted to radians
*/
float64
dpi(void)
{
float64 result;
result = (float64) palloc(sizeof(float64data));
*result = (M_PI);
return result;
} /* dpi() */
/*
* radians - returns a pointer to radians converted from degrees
*/
float64
radians(float64 arg1)
{
float64 result;
if (!arg1)
return (float64) NULL;
result = (float64) palloc(sizeof(float64data));
*result = ((*arg1) * (M_PI / 180.0));
CheckFloat8Val(*result);
return result;
} /* radians() */
#ifdef RAND_MAX
/*
* drandom - returns a random number
*/
float64
drandom(void)
{
float64 result;
result = (float64) palloc(sizeof(float64data));
/* result 0.0-1.0 */
*result = (((double)rand()) / RAND_MAX);
CheckFloat8Val(*result);
return result;
} /* drandom() */
/*
* setseed - set seed for the random number generator
*/
void
setseed(int32 seed)
{
srand(seed);
return;
} /* setseed() */
#endif

View File

@ -1,145 +0,0 @@
-- ODBC.sql
--
--
-- Character string manipulation
--
--
-- Extensions for ODBC compliance in v7.0.
-- In the current driver, ODBC functions must map directly into a
-- Postgres function. So in some cases we must create a compatible
-- function.
--
-- truncate on the left
CREATE FUNCTION ltrunc(text, integer)
RETURNS text
AS 'SELECT substring($1 FROM 1 FOR $2)'
LANGUAGE 'SQL';
-- truncate on the right
CREATE FUNCTION rtrunc(text, integer)
RETURNS text
AS 'SELECT substring($1 FROM (char_length($1)-($2)+1) FOR $2)'
LANGUAGE 'SQL';
CREATE FUNCTION space(integer)
RETURNS text
AS 'SELECT lpad('''', $1, '' '')'
LANGUAGE 'SQL';
--
-- Mathematical functions
--
CREATE FUNCTION truncate(numeric,integer)
RETURNS numeric
AS 'SELECT trunc($1, $2)'
LANGUAGE 'SQL';
--
-- Date/time functions for v7.0
--
CREATE FUNCTION curdate()
RETURNS date
AS 'SELECT CAST(''now'' AS date)'
LANGUAGE 'SQL';
CREATE FUNCTION curtime()
RETURNS time
AS 'SELECT CAST(''now'' AS time)'
LANGUAGE 'SQL';
CREATE FUNCTION dayname(timestamp)
RETURNS text
AS 'SELECT to_char($1,''Day'')'
LANGUAGE 'SQL';
CREATE FUNCTION dayofmonth(timestamp)
RETURNS integer
AS 'SELECT CAST(date_part(''day'', $1) AS integer)'
LANGUAGE 'SQL';
CREATE FUNCTION dayofweek(timestamp)
RETURNS integer
AS 'SELECT ( CAST(date_part(''dow'', $1) AS integer) + 1)'
LANGUAGE 'SQL';
CREATE FUNCTION dayofyear(timestamp)
RETURNS integer
AS 'SELECT CAST(date_part(''doy'', $1) AS integer)'
LANGUAGE 'SQL';
CREATE FUNCTION hour(timestamp)
RETURNS integer
AS 'SELECT CAST(date_part(''hour'', $1) AS integer)'
LANGUAGE 'SQL';
CREATE FUNCTION minute(timestamp)
RETURNS integer
AS 'SELECT CAST(date_part(''minute'', $1) AS integer)'
LANGUAGE 'SQL';
CREATE FUNCTION odbc_month(timestamp)
RETURNS integer
AS 'SELECT CAST(date_part(''month'', $1) AS integer)'
LANGUAGE 'SQL';
CREATE FUNCTION monthname(timestamp)
RETURNS text
AS 'SELECT to_char($1, ''Month'')'
LANGUAGE 'SQL';
CREATE FUNCTION quarter(timestamp)
RETURNS integer
AS 'SELECT CAST(date_part(''quarter'', $1) AS integer)'
LANGUAGE 'SQL';
CREATE FUNCTION second(timestamp)
RETURNS integer
AS 'SELECT CAST(date_part(''second'', $1) AS integer)'
LANGUAGE 'SQL';
/*
-- The first argument is an integer constant denoting the units
-- of the second argument. Until we know the actual values, we
-- cannot implement these. - thomas 2000-04-11
CREATE FUNCTION timestampadd(integer,integer,timestamp)
RETURNS timestamp
AS 'SELECT CAST(($3 + ($2 * $1)) AS timestamp)'
LANGUAGE 'SQL';
CREATE FUNCTION timestampdiff(integer,integer,timestamp)
RETURNS timestamp
AS 'SELECT CAST(($3 + ($2 * $1)) AS timestamp)'
LANGUAGE 'SQL';
*/
CREATE FUNCTION week(timestamp)
RETURNS integer
AS 'SELECT CAST(date_part(''week'', $1) AS integer)'
LANGUAGE 'SQL';
CREATE FUNCTION year(timestamp)
RETURNS integer
AS 'SELECT CAST(date_part(''year'', $1) AS integer)'
LANGUAGE 'SQL';
--
-- System functions.
--
/*
CREATE FUNCTION database()
RETURNS text
AS 'SELECT ...'
LANGUAGE 'SQL';
*/
CREATE FUNCTION odbc_user()
RETURNS text
AS 'SELECT CAST(USER AS text)'
LANGUAGE 'SQL';