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- PostgreSQL Data Base Management System
-
- Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
- Portions Copyright (c) 1994-6 Regents of the University of California
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose, without fee, and without a written
- agreement is hereby granted, provided that the above copyright notice
- and this paragraph and the following two paragraphs appear in all
- copies.
-
- IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
- FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
- INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND
- ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN
- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
- THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
- INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
- PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
- CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
- UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+PostgreSQL Data Base Management System
+
+Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group Portions
+Copyright (c) 1994-6 Regents of the University of California
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose, without fee, and without a written agreement is
+hereby granted, provided that the above copyright notice and this paragraph and
+the following two paragraphs appear in all copies.
+
+IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST
+PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE.
+
+THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND
+THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE,
+SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
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- Guttman, A. "R-Trees: A Dynamic Index Structure for Spatial
- Searching." Proceedings of the 1984 ACM SIGMOD Int'l Conf on Mgmt of
- Data, 45-57.
-
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+R-Tree ¤ÎÀ߷פθ¶Åµ¤È¤Ê¤ë¸¢°Ò¤¢¤ëÏÀʸ¤Ï:
+
+Guttman, A. "R-Trees: A Dynamic Index Structure for Spatial Searching."
+Proceedings of the 1984 ACM SIGMOD Int'l Conf on Mgmt of Data, 45-57.
+
+¤³¤ÎÏÀʸ¤Ï¡¢Stonebraker ¶µ¼ø¤Î "Readings in Database Systems" ¤Ç¤â¼è¤ê¾å¤²¤é¤ì
+¤Æ¤¤¤Þ¤¹¡£
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-data structures"
- http://www.sra.co.jp/people/t-ishii/PostgreSQL/mhonarc/pgsql-jp
-/1996Oct/msg00007.html
+ ÆàÎÉÀèüÂç¤ÎÀÐÀî²Â¼£¤µ¤ó¤è¤êR-Tree´Ø·¸¤Îʸ¸¥¤ò¾Ò²ð¤·¤Æĺ¤¤Þ¤·¤¿¡£
+ ÆüËܸì Postgres ML ¤Î¥¢¡¼¥«¥¤¥Ö¤«¤é "Subject: [postgres95 801] spatial data structures"
+ http://www.sra.co.jp/people/t-ishii/PostgreSQL/mhonarc/pgsql-jp/1996Oct/msg00007.html
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]
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SELECT *
FROM tab
WHERE lower(col) = 'abc';
- ɸ½à¥¤¥ó¥Ç¥Ã¥¯¥¹¤Ç¤Ï»È¤ï¤ì¤º¡¢¤·¤«¤·¤Ê¤¬¤é¡¢¤â¤·´Ø¿ô¥¤¥ó¥Ç¥Ã¥¯¥¹¤ò
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CREATE INDEX tabindex ON tab (lower(col));
+
WHERE lower(textfield) LIKE lower(pattern)
- 4.13) Ì䤤¹ç¤ï¤»¤ÎÃæ¤Ç¡¢¥Õ¥£¡¼¥ë¥É¤¬ NULL
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+4.14) ÍÍ¡¹¤Êʸ»ú·¿¤Î¤½¤ì¤¾¤ì¤Î°ã¤¤¤Ï²¿¤Ç¤¹¤«¡©
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Type Internal Name Notes
--------------------------------------------------
CHAR(n) bpchar »ØÄꤵ¤ì¤¿¸ÇÄêĹ¤È¤Ê¤ë¤è¤¦¤Ë¶õÇò¤¬µÍ¤á¤é¤ì¤ë
"char" char £±Ê¸»ú
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-TEXT text Ťµ¤Ë¾å¸Â¤Î̵¤¤¥Æ¥¥¹¥È
+TEXT text Ťµ¤Ë¾å¸Â¤Î̵¤¤¥Æ¥¥¹¥È
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+Æ°ºîÀ®¤·¤Þ¤¹¡£¤¿¤È¤¨¤Ð¡¢
+
+ CREATE TABLE person (
+ id SERIAL,
+ name TEXT
);
- ¤Ï¼«Æ°Åª¤Ë¼¡¤Î¤è¤¦¤ËËÝÌõ¤µ¤ì¤Þ¤¹:
+¤Ï¼«Æ°Åª¤Ë¼¡¤Î¤è¤¦¤ËËÝÌõ¤µ¤ì¤Þ¤¹:
+
CREATE SEQUENCE person_id_seq;
- CREATE TABLE person (
+ CREATE TABLE person (
id INT4 NOT NULL DEFAULT nextval('person_id_seq'),
- name TEXT
+ name TEXT
);
CREATE UNIQUE INDEX person_id_key ON person ( id );
- ÄÌÈ֤ˤĤ¤¤Æ¤Î¤â¤Ã¤È¾Ü¤·¤¤¾ðÊó¤Ï¡¢¥ª¥ó¥é¥¤¥ó¥Þ¥Ë¥å¥¢¥ë¤Ç
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new_id = execute("SELECT nextval('person_id_seq')");
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