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65 lines
2.1 KiB
65 lines
2.1 KiB
5 months ago
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/* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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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, version 2.0, for more details.
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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 St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef WINDOW_LEX_INCLUDED
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#define WINDOW_LEX_INCLUDED
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/**
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Cf. SQL 2003 7.11 \<window frame units\> and class PT_border
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*/
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enum enum_window_frame_unit { WFU_ROWS, WFU_RANGE, WFU_GROUPS };
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/**
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Cf. SQL 2003 7.11 \<window frame extent\> and class PT_border
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The Window::comparators array depends on the order of values in this enum.
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*/
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enum enum_window_border_type {
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WBT_CURRENT_ROW = 0,
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WBT_VALUE_PRECEDING,
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WBT_VALUE_FOLLOWING,
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WBT_UNBOUNDED_PRECEDING,
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WBT_UNBOUNDED_FOLLOWING,
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};
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/**
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Cf. SQL 2003 7.11 \<window frame exclusion\> and class PT_exclusion
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*/
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enum enum_window_frame_exclusion {
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WFX_CURRENT_ROW,
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WFX_GROUP,
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WFX_TIES,
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WFX_NO_OTHERS
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};
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/**
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Cf. SQL 2011 6.10 null treatment
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*/
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enum enum_null_treatment { NT_NONE, NT_RESPECT_NULLS, NT_IGNORE_NULLS };
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/**
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Cf. SQL 2011 6.10 from first or last
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*/
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enum enum_from_first_last { NFL_NONE, NFL_FROM_FIRST, NFL_FROM_LAST };
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#endif /* WINDOW_LEX_INCLUDED */
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