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Fix SPI example to reflect new-style calling convention for textout().

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This commit is contained in:
Tom Lane 2001-03-23 01:51:08 +00:00
parent b1065f8fc2
commit 4e911c847c
1 changed files with 42 additions and 35 deletions
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21
doc/src/sgml/spi.sgml
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@ -2691,7 +2691,7 @@ are invisible to the query scan. For example, in query
INSERT INTO a SELECT * FROM a INSERT INTO a SELECT * FROM a
tuples inserted are invisible for SELECT' scan. In effect, this tuples inserted are invisible for SELECT's scan. In effect, this
duplicates the database table within itself (subject to unique index duplicates the database table within itself (subject to unique index
rules, of course) without recursing. rules, of course) without recursing.
</Para> </Para>
@ -2708,7 +2708,7 @@ of Q) or after Q is done.
<Para> <Para>
This example of SPI usage demonstrates the visibility rule. This example of SPI usage demonstrates the visibility rule.
There are more complex examples in in src/test/regress/regress.c and There are more complex examples in src/test/regress/regress.c and
in contrib/spi. in contrib/spi.
</Para> </Para>
@ -2726,12 +2726,17 @@ int execq(text *sql, int cnt);
int int
execq(text *sql, int cnt) execq(text *sql, int cnt)
{ {
char *query;
int ret; int ret;
int proc = 0; int proc;
/* Convert given TEXT object to a C string */
query = DatumGetCString(DirectFunctionCall1(textout,
PointerGetDatum(sql)));
SPI_connect(); SPI_connect();
ret = SPI_exec(textout(sql), cnt); ret = SPI_exec(query, cnt);
proc = SPI_processed; proc = SPI_processed;
/* /*
@ -2743,11 +2748,11 @@ execq(text *sql, int cnt)
TupleDesc tupdesc = SPI_tuptable->tupdesc; TupleDesc tupdesc = SPI_tuptable->tupdesc;
SPITupleTable *tuptable = SPI_tuptable; SPITupleTable *tuptable = SPI_tuptable;
char buf[8192]; char buf[8192];
int i; int i,j;
for (ret = 0; ret < proc; ret++) for (j = 0; j < proc; j++)
{ {
HeapTuple tuple = tuptable->vals[ret]; HeapTuple tuple = tuptable->vals[j];
for (i = 1, buf[0] = 0; i <= tupdesc->natts; i++) for (i = 1, buf[0] = 0; i <= tupdesc->natts; i++)
sprintf(buf + strlen (buf), " %s%s", sprintf(buf + strlen (buf), " %s%s",
@ -2759,6 +2764,8 @@ execq(text *sql, int cnt)
SPI_finish(); SPI_finish();
pfree(query);
return (proc); return (proc);
} }
</ProgramListing> </ProgramListing>