ringerc

CREATE SCHEMA myschema;

CREATE TABLE myschema.zzafter(id integer);

CREATE OR REPLACE FUNCTION myschema.aabefore()
RETURNS void
LANGUAGE plpgsql
AS $$
DECLARE
    somefield myschema.zzafter.id%TYPE;

ringerc

From 0319a7ecbab5c1e85e300d93f674087786be144a Mon Sep 17 00:00:00 2001
From: Craig Ringer <craig@2ndquadrant.com>
Date: Wed, 1 Apr 2015 10:46:29 +0800
Subject: [PATCH] pg_restore -t should select views, matviews, and foreign
 tables

Currently pg_restore's '-t' option selects only tables, not other
relations. It should be able to match anything that behaves like
a relation in the relation namespace, anything that's interchangable
with a table, including:

ringerc

#!/usr/bin/env python
#
# Disconnect/reconnect each query
#
# Takes 0.45s to run here
#
import time
import psycopg2

start_t = time.time()

ringerc

#!python
# coding=utf-8
#
# usage: python jpegify.py *.pdf
#
# Written for Python 2 or python 3

from __future__ import print_function

import os

ringerc

craig=> DO
$$
BEGIN
    PERFORM (ARRAY[1])[1];
END;
$$ LANGUAGE plpgsql;

with a breakpoint set at ExecEvalArrayRef results in:

(gdb) bt

ringerc

regress=> DELETE FROM t USING t2 WHERE t.id = t2.id;
LOG:  parse tree:
DETAIL:     {QUERY 
   :commandType 4 
   :querySource 0 
   :canSetTag true 
   :utilityStmt <> 
   :resultRelation 1 
   :hasAggs false 
   :hasWindowFuncs false 

ringerc

regress=> DELETE FROM t;
LOG:  parse tree:
DETAIL:     {QUERY 
   :commandType 4 
   :querySource 0 
   :canSetTag true 
   :utilityStmt <> 
   :resultRelation 1 
   :hasAggs false 
   :hasWindowFuncs false 

ringerc

--- /tmp/simple-delete	2013-11-12 09:26:55.077406915 +0800
+++ /tmp/join-delete	2013-11-12 09:49:06.172045074 +0800
@@ -1,4 +1,4 @@
-regress=> DELETE FROM t;
+regress=> DELETE FROM t USING t2 WHERE t.id = t2.id;
 LOG:  parse tree:
 DETAIL:     {QUERY 
    :commandType 4 
@@ -28,9 +28,27 @@
       :lateral false 

ringerc

regress=> SELECT * FROM t_even;
LOG:  parse tree:
DETAIL:     {QUERY 
   :commandType 1 
   :querySource 0 
   :canSetTag true 
   :utilityStmt <> 
   :resultRelation 0 
   :hasAggs false 
   :hasWindowFuncs false 

ringerc

#include "postgres.h"
#include "fmgr.h"

PG_MODULE_MAGIC;

PGDLLEXPORT Datum pg_elephant(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(pg_elephant);

static const char * const elephant =
"............MMMMMMMMMMM8..........MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM   ...........\n"