Horton

Re: patch: function xmltable

Pavel Stehule <pavel.stehule@gmail.com>

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From: Pavel Stehule <pavel.stehule@gmail.com>
To: Craig Ringer <craig@2ndquadrant.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2016-09-09T08:35:22Z
Lists: pgsql-hackers

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Hi,

I am sending new version of this patch

1. now generic TableExpr is better separated from a real content generation
2. I removed cached typmod - using row type cache everywhere - it is
consistent with other few places in Pg where dynamic types are used - the
result tupdesc is generated few times more - but it is not on critical path.
3. More comments, few more lines in doc.
4. Reformated by pgindent

Regards

Pavel

Commits

  1. Support XMLTABLE query expression

  2. Create <sect3> in the functions-xml section

  3. Improve handling of "UPDATE ... SET (column_list) = row_constructor".

  4. Add xmlexists function