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Replace regular expression package with Henry Spencer's latest version

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(extracted from Tcl 8.4.1 release, as Henry still hasn't got round to
making it a separate library).  This solves a performance problem for
multibyte, as well as upgrading our regexp support to match recent Tcl
and nearly match recent Perl.
This commit is contained in:
Tom Lane
2003-02-05 17:41:33 +00:00
parent 32c3db0f86
commit 7bcc6d98fb
29 changed files with 10704 additions and 5215 deletions
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1124
doc/src/sgml/func.sgml
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doc/src/sgml/release.sgml
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@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.184 2003/02/02 23:46:38 tgl Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.185 2003/02/05 17:41:32 tgl Exp $
-->
<appendix id="release">
@ -24,6 +24,7 @@ CDATA means the content is "SGML-free", so you can write without
worries about funny characters.
-->
<literallayout><![CDATA[
New regular expression package, many more regexp features (most of Perl5)
Can now do EXPLAIN ... EXECUTE to see plan used for a prepared query
Explicit JOINs no longer constrain query plan, unless JOIN_COLLAPSE_LIMIT = 1
Performance of "foo IN (SELECT ...)" queries has been considerably improved