Re: Early WIP/PoC for inlining CTEs

Andreas Karlsson <andreas@proxel.se>

From: Andreas Karlsson <andreas@proxel.se>

To: David Fetter <david@fetter.org>, Thomas Munro <thomas.munro@enterprisedb.com>

Cc: Andrew Gierth <andrew@tao11.riddles.org.uk>, Pg Hackers <pgsql-hackers@postgresql.org>

Date: 2018-10-02T10:03:06Z

Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Prevent inlining of multiply-referenced CTEs with outer recursive refs.
- 9476131278c7 12.0 landed
Allow user control of CTE materialization, and change the default behavior.
- 608b167f9f9c 12.0 landed
Split QTW_EXAMINE_RTES flag into QTW_EXAMINE_RTES_BEFORE/_AFTER.
- 18c0da88a5d9 12.0 landed
document when PREPARE uses generic plans
- fab9d1da4a21 9.6.0 cited

Attachments

inlining-ctes-v5.patch (text/x-patch) patch v5

Hi,

Here is an updated patch which adds some simple syntax for adding the 
optimization barrier. For example:

WITH x AS MATERIALIZED (
    SELECT 1
)
SELECT * FROM x;

Andreas