62 lines
1.9 KiB
PL/PgSQL
62 lines
1.9 KiB
PL/PgSQL
/*
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*This file is part of Adempiere ERP Bazaar
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*http://www.adempiere.org
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*
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*Copyright (C) 2007 Low Heng Sin
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*Copyright (C) 1999-2006 ComPiere, inc
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*
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*This program is free software; you can redistribute it and/or
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*modify it under the terms of the GNU General Public License
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*as published by the Free Software Foundation; either version 2
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*of the License, or (at your option) any later version.
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*
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*This program is distributed in the hope that it will be useful,
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*but WITHOUT ANY WARRANTY; without even the implied warranty of
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*MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*GNU General Public License for more details.
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*
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*You should have received a copy of the GNU General Public License
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*along with this program; if not, write to the Free Software
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*Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.of
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*/
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CREATE OR REPLACE FUNCTION trunc(datetime TIMESTAMP WITH TIME ZONE)
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RETURNS TIMESTAMP WITH TIME ZONE AS $$
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BEGIN
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RETURN CAST(datetime AS DATE);
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END;
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$$ LANGUAGE plpgsql IMMUTABLE;
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CREATE OR REPLACE FUNCTION trunc(datetime TIMESTAMP WITHOUT TIME ZONE)
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RETURNS TIMESTAMP WITHOUT TIME ZONE AS $$
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BEGIN
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RETURN CAST(datetime AS DATE);
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END;
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$$ LANGUAGE plpgsql IMMUTABLE;
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CREATE OR REPLACE FUNCTION trunc(datetime TIMESTAMP WITH TIME ZONE, format varchar)
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RETURNS DATE AS $$
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BEGIN
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IF format = 'Q' THEN
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RETURN CAST(DATE_Trunc('quarter',datetime) as DATE);
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ELSIF format = 'Y' or format = 'YEAR' THEN
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RETURN CAST(DATE_Trunc('year',datetime) as DATE);
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ELSIF format = 'MM' or format = 'MONTH' THEN
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RETURN CAST(DATE_Trunc('month',datetime) as DATE);
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ELSIF format = 'DD' THEN
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RETURN CAST(DATE_Trunc('day',datetime) as DATE);
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ELSIF format = 'DY' THEN
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RETURN CAST(DATE_Trunc('day',datetime) as DATE);
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ELSE
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RETURN CAST(datetime AS DATE);
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END IF;
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END;
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$$ LANGUAGE plpgsql IMMUTABLE;
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CREATE OR REPLACE FUNCTION trunc(i INTERVAL)
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RETURNS INTEGER AS $$
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BEGIN
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RETURN EXTRACT(DAY FROM i);
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END;
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$$ LANGUAGE plpgsql IMMUTABLE;
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