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Add SPI_push/SPI_pop calls so that datatype input and output functions called

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by plpgsql can themselves use SPI --- possibly indirectly, as in the case
of domain_in() invoking plpgsql functions in a domain check constraint.
Per bug #2945 from Sergiy Vyshnevetskiy.

Somewhat arbitrarily, I've chosen to back-patch this as far as 8.0.  Given
the lack of prior complaints, it doesn't seem critical for 7.x.
This commit is contained in:
Tom Lane 2007-01-30 18:02:34 +00:00
parent 5e6c06f040
commit 458e9169d6
1 changed files with 11 additions and 2 deletions
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13
src/pl/plpgsql/src/pl_exec.c
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@ -3,7 +3,7 @@
* procedural language
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.154.2.4 2006/03/02 05:34:17 tgl Exp $
* $PostgreSQL: pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.154.2.5 2007/01/30 18:02:34 tgl Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
@ -4086,12 +4086,19 @@ make_tuple_from_row(PLpgSQL_execstate *estate,
static char *
convert_value_to_string(Datum value, Oid valtype)
{
char *str;
Oid typoutput;
bool typIsVarlena;
getTypeOutputInfo(valtype, &typoutput, &typIsVarlena);
return DatumGetCString(OidFunctionCall1(typoutput, value));
SPI_push();
str = DatumGetCString(OidFunctionCall1(typoutput, value));
SPI_pop();
return str;
}
/* ----------
@ -4117,10 +4124,12 @@ exec_cast_value(Datum value, Oid valtype,
char *extval;
extval = convert_value_to_string(value, valtype);
SPI_push();
value = FunctionCall3(reqinput,
CStringGetDatum(extval),
ObjectIdGetDatum(reqtypioparam),
Int32GetDatum(reqtypmod));
SPI_pop();
pfree(extval);
}
}