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Newer version of Bruce's pginterface library...

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Marc G. Fournier
1996-09-19 20:19:05 +00:00
parent ee9b8016c7
commit 715c6b6d25
9 changed files with 667 additions and 0 deletions
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contrib/pginterface/pgwordcount.c Normal file
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/*
* wordcount.c
*
*/
#include <stdio.h>
#include <signal.h>
#include <time.h>
#include <libpq-fe.h>
#include "halt.h"
#include "pginterface.h"
int main(int argc, char **argv)
{
char query[4000];
int row = 0;
int count;
char line[4000];
if (argc != 2)
halt("Usage: %s database\n",argv[0]);
connectdb(argv[1],NULL,NULL,NULL,NULL);
on_error_continue();
doquery("DROP TABLE words");
on_error_stop();
doquery("\
CREATE TABLE words( \
matches int4, \
word text ) \
");
doquery("\
CREATE INDEX i_words_1 ON words USING btree ( \
word text_ops )\
");
while(1)
{
if (scanf("%s",line) != 1)
break;
doquery("BEGIN WORK");
sprintf(query,"\
DECLARE c_words BINARY CURSOR FOR \
SELECT count(*) \
FROM words \
WHERE word = '%s'", line);
doquery(query);
doquery("FETCH ALL IN c_words");
while (fetch(&count) == END_OF_TUPLES)
count = 0;
doquery("CLOSE c_words");
doquery("COMMIT WORK");
if (count == 0)
sprintf(query,"\
INSERT INTO words \
VALUES (1, '%s')", line);
else
sprintf(query,"\
UPDATE words \
SET matches = matches + 1
WHERE word = '%s'", line);
doquery(query);
row++;
}
disconnectdb();
return 0;
}