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SQL function bit_length

This commit is contained in:
Peter Eisentraut 2001-05-24 09:29:29 +00:00
parent 8a987af4a1
commit 444c5bf1b2
2 changed files with 18 additions and 2 deletions
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10
doc/src/sgml/func.sgml
View File

@ -1,4 +1,4 @@
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/func.sgml,v 1.58 2001/05/12 22:51:34 petere Exp $ -->
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/func.sgml,v 1.59 2001/05/24 09:29:29 petere Exp $ -->
<chapter id="functions">
<title>Functions and Operators</title>
@ -775,6 +775,14 @@
<entry>PostgreSQL</entry>
</row>
<row>
<entry>bit_length(<parameter>string</parameter>)</entry>
<entry><type>integer</type></entry>
<entry>number of bits in string</entry>
<entry>bit_length('jose')</entry>
<entry>32</entry>
</row>
<row>
<entry>char_length(<parameter>string</parameter>) or character_length(<parameter>string</parameter>)</entry>
<entry><type>integer</type></entry>

10
src/include/catalog/pg_proc.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_proc.h,v 1.187 2001/05/22 16:37:16 petere Exp $
* $Id: pg_proc.h,v 1.188 2001/05/24 09:29:29 petere Exp $
*
* NOTES
* The script catalog/genbki.sh reads this file and generates .bki
@ -2464,6 +2464,14 @@ DESCR("(internal)");
DATA(insert OID = 1799 ( oidout PGUID 12 f t t t 1 f 23 "0" 100 0 0 100 oidout - ));
DESCR("(internal)");
DATA(insert OID = 1810 ( bit_length PGUID 14 f t t t 1 f 23 "17" 100 0 0 100 "select octet_length($1) * 8" - ));
DESCR("length in bits");
DATA(insert OID = 1811 ( bit_length PGUID 14 f t t t 1 f 23 "25" 100 0 0 100 "select octet_length($1) * 8" - ));
DESCR("length in bits");
DATA(insert OID = 1812 ( bit_length PGUID 14 f t t t 1 f 23 "1560" 100 0 0 100 "select length($1)" - ));
DESCR("length in bits");
/* Selectivity estimators for LIKE and related operators */
DATA(insert OID = 1814 ( iclikesel PGUID 12 f t f t 4 f 701 "0 26 0 23" 100 0 0 100 iclikesel - ));
DESCR("restriction selectivity of ILIKE");