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体验新版 GitCode,发现更多精彩内容 >>
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c5185e84
编写于
10月 24, 2000
作者:
T
Tom Lane
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Update plperl README per suggestions from Edward Bridges.
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src/pl/plperl/README
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>perl Makefile.pl
>make
copy the resulting library somewhere that
the postgresql backend can see it. assume
that path is /usr/local/pgsql/modules/plperl.so
CREATE FUNCTION plperl_call_handler() RETURNS opaque
AS '/usr/local/pgsql/modules/plperl.so' LANGUAGE 'C';
CREATE TRUSTED PROCEDURAL LANGUAGE 'plperl'
HANDLER plperl_call_handler
LANCOMPILER 'PL/Perl';
-- here is simple example
README for PL/Perl 2000.10.24
PREREQUISITES
======================================================================
+ Perl must be built as a shared library.
+ when compiling Postgres, use the --with-perl option. Alternatively,
you can build plperl separately in an already-configured source tree:
cd to $POSTGRES_SRC/src/pl/plperl/ and do "gmake all install".
CONFIGURING
======================================================================
+ as postgres super user:
createlang plperl [database]
NOTES ON USAGE
======================================================================
+ Use q[], qq[], and qw[] instead of single quotes in
function definitions.
+ When using escape sequences, you must backslash your
backslashes, e.g.
$alphanum =~ s/\W//g; # Wrong! Will replace capital W's
$alphanum =~ s/\\W//g; # Right! Will replace non-word chars
+ Arguments to the function are available in @_
+ If argument is declared as a tuple, then tuple is represented as a
hash reference.
EXAMPLES
======================================================================
CREATE FUNCTION addints(int4, int4) RETURNS int4 AS '
return $_[0] + $_[1]
' LANGUAGE 'plperl';
...
...
@@ -37,5 +50,3 @@ return 1;
' LANGUAGE 'plperl';
SELECT badfunc();
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