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| author | Bruce Momjian <bruce@momjian.us> | 2008-03-03 17:11:23 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2008-03-03 17:11:23 +0000 |
| commit | 5f2ad57f4e07dc5d98bb528352c97a98b5ebae12 (patch) | |
| tree | 44407f2ee9885c38a7b04e9fed61e94f14710aec | |
| parent | 8a7c17d0ee93abeaa04d3fe913ba0604bd5123d2 (diff) | |
Document that chr(0) is not supported, and why.
| -rw-r--r-- | doc/src/sgml/func.sgml | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index 340efac6556..64b99ea0b7c 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.419 2007/12/21 03:37:18 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.419.2.1 2008/03/03 17:11:23 momjian Exp $ --> <chapter id="functions"> <title>Functions and Operators</title> @@ -1340,7 +1340,8 @@ Character with the given code. For <acronym>UTF8</acronym> the argument is treated as a Unicode code point. For other multibyte encodings the argument must designate a strictly - <acronym>ASCII</acronym> character. + <acronym>ASCII</acronym> character. The NULL (0) character is not + allowed because text data types cannot reliably store such bytes. </entry> <entry><literal>chr(65)</literal></entry> <entry><literal>A</literal></entry> |