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The beginnings of a regression test for plperl. Right now it only
covers return value processing, but that was the most broken stuff...
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‎src/pl/plperl/test/runtest

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#!/bin/sh
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DBNAME=plperl_test
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export DBNAME
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echo "**** Destroy old database $DBNAME ****"
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dropdb $DBNAME
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sleep 1
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echo "**** Create test database $DBNAME ****"
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createdb $DBNAME
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echo "**** Create procedural language plperl ****"
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createlang plperl $DBNAME
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echo "**** Running test queries ****"
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psql -q -n -e $DBNAME <test_queries.sql > test.out 2>&1
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if diff test.expected test.out >/dev/null 2>&1 ; then
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echo " Tests passed O.K."
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rm test.out
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else
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echo " Tests failed - look at diffs between"
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echo " test.expected and test.out"
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fi

‎src/pl/plperl/test/test.expected

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checkpoint;
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CREATE OR REPLACE FUNCTION perl_int(int) RETURNS INTEGER AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_int(11);
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perl_int
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----------
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(1 row)
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SELECT * FROM perl_int(42);
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perl_int
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----------
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(1 row)
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CREATE OR REPLACE FUNCTION perl_int(int) RETURNS INTEGER AS $$
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return $_[0] + 1;
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$$ LANGUAGE plperl;
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SELECT perl_int(11);
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perl_int
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----------
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12
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(1 row)
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SELECT * FROM perl_int(42);
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perl_int
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----------
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43
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(1 row)
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CREATE OR REPLACE FUNCTION perl_set_int(int) RETURNS SETOF INTEGER AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_set_int(5);
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perl_set_int
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--------------
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(0 rows)
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SELECT * FROM perl_set_int(5);
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perl_set_int
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--------------
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(0 rows)
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CREATE OR REPLACE FUNCTION perl_set_int(int) RETURNS SETOF INTEGER AS $$
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return [0..$_[0]];
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$$ LANGUAGE plperl;
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SELECT perl_set_int(5);
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perl_set_int
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--------------
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0
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1
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2
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3
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4
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5
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(6 rows)
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SELECT * FROM perl_set_int(5);
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perl_set_int
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--------------
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0
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1
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2
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3
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4
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5
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(6 rows)
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CREATE TYPE testrowperl AS (f1 integer, f2 text, f3 text);
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CREATE OR REPLACE FUNCTION perl_row() RETURNS testrowperl AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_row();
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perl_row
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----------
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(1 row)
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SELECT * FROM perl_row();
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f1 | f2 | f3
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----+----+----
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| |
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(1 row)
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CREATE OR REPLACE FUNCTION perl_row() RETURNS testrowperl AS $$
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return {f2 => 'hello', f1 => 1, f3 => 'world'};
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$$ LANGUAGE plperl;
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SELECT perl_row();
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perl_row
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-----------------
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(1,hello,world)
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(1 row)
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SELECT * FROM perl_row();
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f1 | f2 | f3
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----+-------+-------
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1 | hello | world
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(1 row)
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CREATE OR REPLACE FUNCTION perl_set() RETURNS SETOF testrowperl AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_set();
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perl_set
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----------
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(0 rows)
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SELECT * FROM perl_set();
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f1 | f2 | f3
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----+----+----
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(0 rows)
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CREATE OR REPLACE FUNCTION perl_set() RETURNS SETOF testrowperl AS $$
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return [
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{ f1 => 1, f2 => 'Hello', f3 => 'World' },
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undef,
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{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
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];
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$$ LANGUAGE plperl;
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SELECT perl_set();
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ERROR: plperl: check your return value structure
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SELECT * FROM perl_set();
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ERROR: plperl: check your return value structure
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CREATE OR REPLACE FUNCTION perl_set() RETURNS SETOF testrowperl AS $$
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return [
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{ f1 => 1, f2 => 'Hello', f3 => 'World' },
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{ f1 => 2, f2 => 'Hello', f3 => 'PostgreSQL' },
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{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
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];
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$$ LANGUAGE plperl;
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SELECT perl_set();
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perl_set
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----------------------
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(1,Hello,World)
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(2,Hello,PostgreSQL)
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(3,Hello,PL/Perl)
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(3 rows)
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SELECT * FROM perl_set();
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f1 | f2 | f3
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----+-------+------------
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1 | Hello | World
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2 | Hello | PostgreSQL
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3 | Hello | PL/Perl
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(3 rows)
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CREATE OR REPLACE FUNCTION perl_record() RETURNS record AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_record();
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perl_record
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-------------
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(1 row)
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SELECT * FROM perl_record();
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ERROR: a column definition list is required for functions returning "record"
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SELECT * FROM perl_record() AS (f1 integer, f2 text, f3 text);
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f1 | f2 | f3
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----+----+----
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| |
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(1 row)
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CREATE OR REPLACE FUNCTION perl_record() RETURNS record AS $$
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return {f2 => 'hello', f1 => 1, f3 => 'world'};
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$$ LANGUAGE plperl;
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SELECT perl_record();
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ERROR: could not determine row description for function returning record
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SELECT * FROM perl_record();
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ERROR: a column definition list is required for functions returning "record"
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SELECT * FROM perl_record() AS (f1 integer, f2 text, f3 text);
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f1 | f2 | f3
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----+-------+-------
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1 | hello | world
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(1 row)
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CREATE OR REPLACE FUNCTION perl_record_set() RETURNS SETOF record AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_record_set();
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perl_record_set
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-----------------
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(0 rows)
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SELECT * FROM perl_record_set();
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ERROR: a column definition list is required for functions returning "record"
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SELECT * FROM perl_record_set() AS (f1 integer, f2 text, f3 text);
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f1 | f2 | f3
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----+----+----
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(0 rows)
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CREATE OR REPLACE FUNCTION perl_record_set() RETURNS SETOF record AS $$
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return [
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{ f1 => 1, f2 => 'Hello', f3 => 'World' },
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undef,
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{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
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];
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$$ LANGUAGE plperl;
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SELECT perl_record_set();
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ERROR: could not determine row description for function returning record
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SELECT * FROM perl_record_set();
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ERROR: a column definition list is required for functions returning "record"
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SELECT * FROM perl_record_set() AS (f1 integer, f2 text, f3 text);
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ERROR: plperl: check your return value structure
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CREATE OR REPLACE FUNCTION perl_record_set() RETURNS SETOF record AS $$
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return [
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{ f1 => 1, f2 => 'Hello', f3 => 'World' },
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{ f1 => 2, f2 => 'Hello', f3 => 'PostgreSQL' },
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{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
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];
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$$ LANGUAGE plperl;
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SELECT perl_record_set();
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ERROR: could not determine row description for function returning record
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SELECT * FROM perl_record_set();
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ERROR: a column definition list is required for functions returning "record"
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SELECT * FROM perl_record_set() AS (f1 integer, f2 text, f3 text);
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f1 | f2 | f3
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----+-------+------------
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1 | Hello | World
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2 | Hello | PostgreSQL
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3 | Hello | PL/Perl
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(3 rows)
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‎src/pl/plperl/test/test_queries.sql

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--
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-- checkpoint so that if we have a crash in the tests, replay of the
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-- just-completed CREATE DATABASE won't discard the core dump file
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--
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checkpoint;
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--
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-- Test result value processing
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--
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CREATE OR REPLACE FUNCTION perl_int(int) RETURNS INTEGER AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_int(11);
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SELECT * FROM perl_int(42);
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CREATE OR REPLACE FUNCTION perl_int(int) RETURNS INTEGER AS $$
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return $_[0] + 1;
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$$ LANGUAGE plperl;
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SELECT perl_int(11);
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SELECT * FROM perl_int(42);
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CREATE OR REPLACE FUNCTION perl_set_int(int) RETURNS SETOF INTEGER AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_set_int(5);
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SELECT * FROM perl_set_int(5);
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CREATE OR REPLACE FUNCTION perl_set_int(int) RETURNS SETOF INTEGER AS $$
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return [0..$_[0]];
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$$ LANGUAGE plperl;
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SELECT perl_set_int(5);
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SELECT * FROM perl_set_int(5);
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CREATE TYPE testrowperl AS (f1 integer, f2 text, f3 text);
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CREATE OR REPLACE FUNCTION perl_row() RETURNS testrowperl AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_row();
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SELECT * FROM perl_row();
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CREATE OR REPLACE FUNCTION perl_row() RETURNS testrowperl AS $$
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return {f2 => 'hello', f1 => 1, f3 => 'world'};
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$$ LANGUAGE plperl;
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SELECT perl_row();
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SELECT * FROM perl_row();
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CREATE OR REPLACE FUNCTION perl_set() RETURNS SETOF testrowperl AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_set();
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SELECT * FROM perl_set();
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CREATE OR REPLACE FUNCTION perl_set() RETURNS SETOF testrowperl AS $$
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return [
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{ f1 => 1, f2 => 'Hello', f3 => 'World' },
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undef,
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{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
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];
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$$ LANGUAGE plperl;
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SELECT perl_set();
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SELECT * FROM perl_set();
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CREATE OR REPLACE FUNCTION perl_set() RETURNS SETOF testrowperl AS $$
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return [
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{ f1 => 1, f2 => 'Hello', f3 => 'World' },
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{ f1 => 2, f2 => 'Hello', f3 => 'PostgreSQL' },
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{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
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];
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$$ LANGUAGE plperl;
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SELECT perl_set();
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SELECT * FROM perl_set();
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CREATE OR REPLACE FUNCTION perl_record() RETURNS record AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_record();
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SELECT * FROM perl_record();
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SELECT * FROM perl_record() AS (f1 integer, f2 text, f3 text);
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CREATE OR REPLACE FUNCTION perl_record() RETURNS record AS $$
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return {f2 => 'hello', f1 => 1, f3 => 'world'};
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$$ LANGUAGE plperl;
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SELECT perl_record();
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SELECT * FROM perl_record();
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SELECT * FROM perl_record() AS (f1 integer, f2 text, f3 text);
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CREATE OR REPLACE FUNCTION perl_record_set() RETURNS SETOF record AS $$
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return undef;
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$$ LANGUAGE plperl;
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SELECT perl_record_set();
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SELECT * FROM perl_record_set();
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SELECT * FROM perl_record_set() AS (f1 integer, f2 text, f3 text);
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CREATE OR REPLACE FUNCTION perl_record_set() RETURNS SETOF record AS $$
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return [
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{ f1 => 1, f2 => 'Hello', f3 => 'World' },
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undef,
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{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
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];
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$$ LANGUAGE plperl;
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SELECT perl_record_set();
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SELECT * FROM perl_record_set();
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SELECT * FROM perl_record_set() AS (f1 integer, f2 text, f3 text);
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CREATE OR REPLACE FUNCTION perl_record_set() RETURNS SETOF record AS $$
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return [
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{ f1 => 1, f2 => 'Hello', f3 => 'World' },
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{ f1 => 2, f2 => 'Hello', f3 => 'PostgreSQL' },
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{ f1 => 3, f2 => 'Hello', f3 => 'PL/Perl' }
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];
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$$ LANGUAGE plperl;
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SELECT perl_record_set();
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SELECT * FROM perl_record_set();
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SELECT * FROM perl_record_set() AS (f1 integer, f2 text, f3 text);

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