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Add support for fetching meta data

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This commit is contained in:
Edin Kadribasic 2005-01-23 14:50:06 +00:00
parent d8aa131ca0
commit 60f5e66aa9
2 changed files with 54 additions and 3 deletions
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52
ext/pdo_pgsql/pgsql_statement.c
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@ -235,13 +235,63 @@ static int pgsql_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, unsigned
return 1;
}
static int pgsql_stmt_get_column_meta(pdo_stmt_t *stmt, long colno, zval *return_value TSRMLS_DC)
{
pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
PGresult *res;
char *q=NULL;
ExecStatusType status;
int i;
if (!S->result) {
return FAILURE;
}
if (colno >= stmt->column_count) {
return FAILURE;
}
array_init(return_value);
add_assoc_long(return_value, "pgsql:oid", S->cols[colno].pgsql_type);
/* Fetch metadata from Postgres system catalogue */
spprintf(&q, 0, "SELECT TYPNAME FROM PG_TYPE WHERE OID=%d", S->cols[colno].pgsql_type);
res = PQexec(S->H->server, q);
efree(q);
status = PQresultStatus(res);
if (status != PGRES_TUPLES_OK) {
/* Failed to get system catalogue, but return success
* with the data we have collected so far
*/
PQclear(res);
return 1;
}
/* We want exactly one row returned */
if (1 != PQntuples(res)) {
PQclear(res);
return 1;
}
add_assoc_string(return_value, "native_type", PQgetvalue(res, 0, 0), 1);
PQclear(res);
return 1;
}
struct pdo_stmt_methods pgsql_stmt_methods = {
pgsql_stmt_dtor,
pgsql_stmt_execute,
pgsql_stmt_fetch,
pgsql_stmt_describe,
pgsql_stmt_get_col,
pgsql_stmt_param_hook
pgsql_stmt_param_hook,
NULL, /* set_attr */
NULL, /* get_attr */
pgsql_stmt_get_column_meta,
NULL /* next_rowset */
};
/*