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Add some links for escape strings.

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Brendan Jurd

Fix markup in previous commit.
This commit is contained in:
Bruce Momjian 2007-09-14 14:54:25 +00:00
parent f6a168e2c3
commit 4b836d8312
2 changed files with 13 additions and 12 deletions
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20
doc/src/sgml/func.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.393 2007/09/14 00:52:45 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.394 2007/09/14 14:54:25 momjian Exp $ -->
<chapter id="functions">
<title>Functions and Operators</title>
@ -2929,14 +2929,14 @@ cast(-44 as bit(12)) <lineannotation>111111010100</lineannotation>
</para>
<para>
Note that the backslash already has a special meaning in string
literals, so to write a pattern constant that contains a backslash
you must write two backslashes in an SQL statement (assuming escape
string syntax is used). Thus, writing a pattern
that actually matches a literal backslash means writing four backslashes
in the statement. You can avoid this by selecting a different escape
character with <literal>ESCAPE</literal>; then a backslash is not special
to <function>LIKE</function> anymore. (But it is still special to the string
Note that the backslash already has a special meaning in string literals,
so to write a pattern constant that contains a backslash you must write two
backslashes in an SQL statement (assuming escape string syntax is used, see
<xref linkend="sql-syntax-strings">). Thus, writing a pattern that
actually matches a literal backslash means writing four backslashes in the
statement. You can avoid this by selecting a different escape character
with <literal>ESCAPE</literal>; then a backslash is not special to
<function>LIKE</function> anymore. (But it is still special to the string
literal parser, so you still need two of them.)
</para>
@ -3549,7 +3549,7 @@ SELECT foo FROM regexp_split_to_table('the quick brown fox', E'\\s*') AS foo;
meaning in <productname>PostgreSQL</> string literals.
To write a pattern constant that contains a backslash,
you must write two backslashes in the statement, assuming escape
string syntax is used.
string syntax is used (see <xref linkend="sql-syntax-strings">).
</para>
</note>

5
doc/src/sgml/libpq.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.244 2007/09/14 14:31:22 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.245 2007/09/14 14:54:25 momjian Exp $ -->
<chapter id="libpq">
<title><application>libpq</application> - C Library</title>
@ -5097,7 +5097,8 @@ defaultNoticeProcessor(void *arg, const char *message)
user=appuser
ldap://ldap.acme.com/cn=dbserver,cn=hosts?pgconnectinfo?base?(objectclass=*)
</synopsis>
<para>
</para>
</sect1>