This dicussion reminds me of a possible memory leak in plpgsql's code. In case you are interested in it;
in pl_comp.c, plpgsql_build_variable takes a pointer to a PLpgSQL_type
structure, which is always a malloc'ed instance(since we always use
plpgsql_build_datatype function). The switch
On Tue, 15 Feb 2005 14:55:38 +1100, Neil Conway [EMAIL PROTECTED] wrote:
On Mon, 2005-02-14 at 17:02 +0500, Sibtay Abbas wrote:
thank you for the detailed reply
But what i wanted to know is that how can we actually get a function's
oid from its
name from within postgresql code itself
You'll
approach I would be thankful if anyone can
correct me.
On Mon, 14 Feb 2005 01:14:07 -0700, Michael Fuhr [EMAIL PROTECTED] wrote:
On Mon, Feb 14, 2005 at 12:47:44PM +0500, Sibtay Abbas wrote:
Is it possible to get the oid of a function on the basis of its name?.
One way is to cast the function
Hello all
Is it possible to get the oid of a function on the basis of its name?.
The scenario which i am currently facing is that i have the function name, now
i want search the pg_proc system catalog on the basis of the function
name and retrieve its Oid.
Another confusion which i am facing is
hello all
as i have mentioned this before, as part of my academic project
i am required to make modifications in postgresql.
One of my tasks includes allowing plpgsql functions to pass parameters by
reference. For this purpose I have been digging in the code for plpgsql
and postgresql for 2
Hello everyone
i have been studying postgres's function handling philosophy lately. I
got stuck at a point where i could'nt get the answer myself
All the information related to functions are stored in pg_proc system
catalog. But when a function is compiled (probably the data structure
that
hello
I am using the following sytex to handle exceptions in
plpgsql (I am using postgres 8 rc1)
some code
EXCEPTION
WHEN NO_DATA THEN
RAISE NOTICE 'NO DATA';
WHEN OTHERS THEN
RAISE NOTICE 'An exception occurred';
RETURN emp_rec;
and i receive
hello,
typedef struct CreateFunctionStmt
{
NodeTag type;
boolreplace;
List *funcname;
List *parameters;
TypeName *returnType;
List *options;
hello
i am not able to execute the yyparse() function
generated by flex from within the pl call handler
function.
does any one knows the reason for this failure? and
how can it be rectified
thank you
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is to ask him the details instead of trying
to insult him.
thank you
--- Peter Eisentraut [EMAIL PROTECTED] wrote:
Sibtay Abbas wrote:
i am not able to execute the yyparse() function
generated by flex from within the pl call handler
function.
First of all, flex does not generate a yyparse
Datum mylanguage_handler(PG_FUNCTION_ARGS){
if (CALLED_AS_TRIGGER(fcinfo))
/*do nothing
else{
char *proc_source;
Datum prosrcdatum;
boolisnull;
//get the oid of the function
hello
what is the value of yyin variable for postgresql
parser.
It might be the default(stdout) when postgresql is
in interactive backend mode...but what happens when
clients from different workstations sends their
queries?
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hello
i am not able to write to file until the pl call
handler interface. this is the template which i am
following
PG_FUNCTION_INFO_V1(my_call_handler);
Datum
my_call_handler(PG_FUNCTION_ARGS)
{
...my code...
int fd = open(filename,O_WRONLY);
hi everyone
i ve added my own pl language in postgresql. i ve
followed the process mentioned in the documentation.
for the handler function i ve followed the following
template
PG_FUNCTION_INFO_V1(myhandler);
Datum
plsample_call_handler(PG_FUNCTION_ARGS)
{
Datum rv;
i have added my own pocedural language in postgresql.
by using the Create function command i ve also written
a procedure in that language.
now when invoke that function with
SELECT (func_name) i receive the following error
message
ERROR: language 17254 has old-style handler.
i am still in my RD phase so i ve not yet tried it.
actually i chose the wrong example.
We can call SQL statements like SPI_Execute(SELECT *
FROM sometable) from the spi interface. My question
is that can we enter other procedural languages as
well, like pgplsql statements.
hi everyone
ok i ve tried to add my own procedural language using
the call handler interface.
I am doining nothing in the handler function except
tyring to print a mess through errmsg function
(plz correct me if i am wrong here, since i cant see
the message which i am printing)
Now my question
hi everyone
i see an attribute 'oid_value' with 'Oid' type in
the ListCell union.
can anyone tell me what does it represents?
Thank you
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hello
i am trying to understand the source code of
postgresql.
Whenever a user enters a query, whether from the
Socket end or the interactive back end, which function
is always invoked that would start manipulation of
that query...
i ve noticed that the primitive parsing is done by the
hi
is Procedural language handler function the
interface for adding your own procedural languages to
postgres?
I ve read the documentation but i am not able to
understand where do we deal with stuff like parse
trees, query trees, plan trees etc.
Ofcourse any procedural language should pass
i guess the answer to my previous question was spi...i
ve got another question, can we call pgsql or plpgsql
functions using spi?
like can we do something like
SPI_execute(CREATE FUNCTION blah() RETURNS Integer
.
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