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Support ODBC-style CURRENT_TIME, CURRENT_USER, etc with trailing empty

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parens. This is not SQL spec syntax, so later we will remove
 this extension from gram.y.
This commit is contained in:
Thomas G. Lockhart 2001-12-10 00:01:14 +00:00
parent a4420c4970
commit abbd64cddf
2 changed files with 43 additions and 1 deletions
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10
src/interfaces/odbc/convert.c
View File

@ -94,6 +94,16 @@ char *mapFuncs[][2] = {
/* { "TAN", "tan" }, */
{"TRUNCATE", "trunc"},
{"CURRENT_DATE", "curdate"},
{"CURRENT_TIME", "curtime"},
{"CURRENT_TIMESTAMP", "odbc_timestamp"},
{"CURRENT_USER", "odbc_current_user"},
{"SESSION_USER", "odbc_session_user"},
{"CURRENT_DATE", "curdate"},
{"CURRENT_TIME", "curtime"},
{"CURRENT_TIMESTAMP", "odbc_timestamp"},
{"CURRENT_USER", "odbc_current_user"},
{"SESSION_USER", "odbc_session_user"},
/* { "CURDATE", "curdate" }, */
/* { "CURTIME", "curtime" }, */
/* { "DAYNAME", "dayname" }, */

34
src/interfaces/odbc/odbc.sql
View File

@ -1,5 +1,5 @@
-- PostgreSQL catalog extensions for ODBC compatibility
-- $Header: /cvsroot/pgsql/src/interfaces/odbc/Attic/odbc.sql,v 1.4 2001/12/02 11:36:04 petere Exp $
-- $Header: /cvsroot/pgsql/src/interfaces/odbc/Attic/odbc.sql,v 1.5 2001/12/10 00:01:14 thomas Exp $
-- ODBC functions are described here:
-- <http://msdn.microsoft.com/library/en-us/odbc/htm/odbcscalar_functions.asp>
@ -141,6 +141,14 @@ CREATE OR REPLACE FUNCTION curtime() RETURNS time with time zone AS '
SELECT current_time;
' LANGUAGE SQL;
CREATE OR REPLACE FUNCTION odbc_timestamp() RETURNS timestamp with time zone AS '
SELECT current_timestamp;
' LANGUAGE SQL;
CREATE OR REPLACE FUNCTION odbc_timestamp() RETURNS timestamp with time zone AS '
SELECT current_timestamp;
' LANGUAGE SQL;
CREATE OR REPLACE FUNCTION dayname(timestamp) RETURNS text AS '
SELECT to_char($1,''Day'');
' LANGUAGE SQL;
@ -206,7 +214,31 @@ CREATE OR REPLACE FUNCTION year(timestamp) RETURNS integer AS '
-- System Functions
CREATE OR REPLACE FUNCTION odbc_user() RETURNS text AS '
SELECT CAST(current_user AS TEXT);
' LANGUAGE SQL;
CREATE OR REPLACE FUNCTION odbc_current_user() RETURNS text AS '
SELECT CAST(current_user AS TEXT);
' LANGUAGE SQL;
CREATE OR REPLACE FUNCTION odbc_session_user() RETURNS text AS '
SELECT CAST(session_user AS TEXT);
' LANGUAGE SQL;
-- ++++++++++++++++
--
-- Built-in: USER
-- Missing: DATABASE, IFNULL
CREATE OR REPLACE FUNCTION odbc_user() RETURNS text AS '
SELECT CAST(current_user AS TEXT);
' LANGUAGE SQL;
CREATE OR REPLACE FUNCTION odbc_current_user() RETURNS text AS '
SELECT CAST(current_user AS TEXT);
' LANGUAGE SQL;
CREATE OR REPLACE FUNCTION odbc_session_user() RETURNS text AS '
SELECT CAST(session_user AS TEXT);
' LANGUAGE SQL;