Horton

Re: WIP: Faster Expression Processing v4

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Andres Freund <andres@anarazel.de>
Cc: Tomas Vondra <tomas.vondra@2ndquadrant.com>, pgsql-hackers@postgresql.org
Date: 2017-03-14T11:44:24Z
Lists: pgsql-hackers 
diff --git a/src/backend/executor/execUtils.c b/src/backend/executor/execUtils.c
index 3d6a3801c0..d205101b89 100644
--- a/src/backend/executor/execUtils.c
+++ b/src/backend/executor/execUtils.c
@@ -47,7 +47,14 @@
 #include "utils/rel.h"
 
 
-static bool get_last_attnums(Node *node, ProjectionInfo *projInfo);
+typedef struct LastLastAttnumInfo


LastLast?


Patch 0003 is huge.  It would be good to have someone at least read it
before pushing, but I don't think anyone other than you has done so.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. Improve performance of ExecEvalWholeRowVar.

  2. Remove unreachable code in expression evaluation.

  3. Faster expression evaluation and targetlist projection.

  4. Avoid syntax error on platforms that have neither LOCALE_T nor ICU.

  5. Add configure test to see if the C compiler has gcc-style computed gotos.

  6. Improve regression test coverage for TID scanning.

  7. Improve expression evaluation test coverage.

  8. Fix two errors with nested CASE/WHEN constructs.