REINDEX

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REINDEX �ϡ��ơ��֥��¸��줿�ǡ��򸵤˥��ǥå��ƹ��ۤ��Ť��ǥå��Υ��ԡ��֤��ޤ�� REINDEX �λ��Ѥˤ��礭��2�Ĥ��Ū��ޤ��

��ǥå��»��Ƥ��ޤ��ͭ��ʥǡ��ʤ��ʤä��Ǥ�� Ū�ˤϷ褷�Ƶ��ʤ��ȤǤ��ºݤˤϡ��եȥ��ΥХ��ϡ��ɥ��ξ㳲�ˤ��»��뤳�Ȥ��ޤ�� REINDEX �Ϥ��ν��ʤ��󶡤��ޤ��
�оݤȤ��륤��ǥå��뤳�Ȥ��ʤ��Ѥ��ʤ��ǥå��ڡ��¿��ޤ��Ǥ�� ϡ��Υ��ѥ��󲼤�PostgreSQL��B-tree��ǥå��ǵ��ޤ�� REINDEX �ϡ��Ѥ��ʤ��ڡ��ʤ��ǥå��ľ��ȤǤ��Υ��ǥå��ΰ��̤򸺾��ʤ��󶡤��ޤ�� ܺ٤��21.2�򻲾Ȥ��Ƥ��

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DATABASE: ��ꤷ��ǡ��١��ƤΥ��ƥ।��ǥå��ƺ��ޤ�� 桼��ơ��֥��Υ��ǥå��Ͻ��ޤ�� ޤ��ɥ��⡼��(��)�ʳ��Ǥϡ��ͭ��ƥ५��Ф��ޤ��
TABLE: ��ꤷ��ơ��֥��ǥå��ƺ��ޤ�� ơ��֥��2��Ū��"TOAST"�ơ��֥뤬��äƤ⡢Ʊ�ͤ˥��ǥå��ƺ��ޤ��
INDEX: ��ꤷ��ǥå��ƺ��ޤ��
name: ��ǥå��ƺ��ǡ��١��ơ��֥롢��ǥå��ꤹ��̾��Ǥ�� ơ��֥�ȥ��ǥå��ϥ��ޤǽ��ǽ�Ǥ��
FORCE: ��Υ��ץ��ѻߤ��ޤ��ꤵ��Ƥ�̵�뤵��ޤ��

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�桼��ơ��֥��1�ĤΥ��ǥå��»�ε��硢ñ�ˤ��Υ��ǥå��ƹ��ۤ��Ƥ�� ơ��֥��ƤΥ��ǥå��ξ��ϡ�REINDEX INDEX �� REINDEX TABLE ��Ѥ��Ƥ�� »��桼��ơ��֥�Υ��ǥå��򰷤�¾��ˡ�ϡ�ñ��ˤ��ľ��ȤǤ�� 긫��̾��ݼ��Ȥ�Ԥ��ϡ��ˡ��ºݤν깥�ޤ�ޤ�� REINDEX �Ϥ��Υơ��֥��¾Ū��å��ɬ�פȤ��ޤ��CREATE INDEX �ϥơ��֥�ؤν񤭹��ߤΤߤ��å��ɤ߹��߻��ϥ��å��ޤ��

��ƥ�ơ��֥�Υ��ǥå��»��줹��ɬ�פ��Ϥ��ʣ��ˤʤ�ޤ�� ξ�硢��ƥ�˵��路��ǥå��Τ��Ѥ��ʤ��褦�ˤ��뤳�Ȥ��פǤ�� (�ºݤϡ��Τ褦�ʾ��ϡ��»��ǥå��ؤΰ�¸�ˤ�ꥵ��Хץ��Ϥ��ε�ư��˶��λ��Ƥ��ޤ��Ȥˤʤ�Ǥ��礦��) ��줵��ˤϡ��ƥ५��Υ��ǥå��λ��Ѥ��-P��ץ��Ѥ��ƥ��Ф�ư��ʤ��Фʤ�ޤ��

��1�Ĥ��ˡ�ϡ�postmaster��ߤ��-P��ץ��򥳥ޥ�ɥ饤��ƥ��ɥ��֤�PostgreSQL ��Ф�ư��뤳�ȤǤ�� ơ��ɤ��ޤǺƹ��Τ��ˤ�äơ�REINDEX DATABASE��REINDEX TABLE��ޤ��ϡ�REINDEX INDEX ��ޥ�ɤ�ȯ�Ԥ��ޤ�� ʾ��ϡ�REINDEX DATABASE ��Ѥ��ơ��Υǡ��١��ƤΥ��ƥ।��ǥå��ƹ��Ǥ�� ơ��ɥ��֤Υ��Х��å��ߤ��¥��Ф�Ƶ�ư��Ʋ�� ɥ��֤Υ��Х��󥿥ե��ˡ�ˤĤ��ƤΤ��ܺ٤�postgres�ޥ˥奢��ڡ��򻲾Ȥ��Ƥ��

��¾��-P �򥳥ޥ�ɥ饤�󥪥ץ��˴ޤ�ơ��¥��Х��å��ư��뤳�Ȥ��Ǥ��ޤ�� ¸��ˡ�ϡ��饤��Ȥˤ�äưۤʤ�ޤ�� Ƥ�libpq�١��Υ��饤��ȤǤϡ��饤��Ȥ�ư��PGOPTIONS�Ķ��ѿ��-P��ꤹ�뤳�Ȥǲ�ǽ�Ǥ�� ˡ�Ǥ�¾�Υ��饤��Ȥ��Ф�ɬ�פϤ��ޤ��󤬡��ޤ��»��ǡ��١��ؤ�¾�Υ桼��³��ɻߤ��ɤ��Ȥ��դ��Ƥ��

��ͭ��ƥ५��(pg_database��pg_group��pg_shadow)�Τ��줫�Υ��ǥå��»��硢��Τ��ˤϥ��ɥ��󥵡��Ф��Ѥ��ʤ��Фʤ�ޤ�� ޥ��桼��⡼�ɤǤ϶�ͭ��ν��Ԥ��ޤ��

��ͭ��ƥ५��ʳ��ƤΥ��ǥå��Ǥϡ�REINDEX�ϥ��å��奻��դ��ĥȥ�󥶥��󥻡��դǤ�� ͭ��ǥå��Ф��REINDEX�ϥ��å��奻��դǤϤ��ޤ�� 줬��̾�α��Ѿ��֤Ǽ¹ԤǤ��ʤ��ͳ�Ǥ�� ɥ��⡼�ɤǡ��Υ��Υ��ǥå��ƺ��꤬ȯ��硢��꤬��ޤǼ¥��Ф�Ƶ�ư��뤳�Ȥ��Ǥ��ʤ��ʤ�ޤ�� (��ͭ��ǥå��ʬŪ�ʺƹ��ۤ˴ؤ��褯��ϡ�"index is not a btree" �Ȥ��顼�Ǥ��)

PostgreSQL 7.4��ޤǡ�REINDEX TABLE��TOAST�ơ��֥��Ф��Ƽ�ưŪ�˽��Ԥ��ޤ��Ǥ��Τ��ᡢ�̤Υ��ޥ�ɤǥ��ǥå��ƺ��ʤ��Фʤ�ޤ��Ǥ�� ϲ�ǽ�ˤʤ�ޤ��Ĺ�Ǥ��

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my_table �ơ��֥�Υ��ǥå��ƺ��ޤ��

REINDEX TABLE my_table;

1�ĤΥ��ǥå��ƹ��ۤ��ޤ��

REINDEX INDEX my_index;

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$ export PGOPTIONS="-P"
$ psql broken_db
...
broken_db=> REINDEX DATABASE broken_db;
broken_db=> \q

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PREPARE	��	RESET

REINDEX

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