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Added comment in code :-)

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Ard Biesheuvel 2003-08-12 11:35:26 +00:00
parent 9e445746e5
commit dd5b49796c
1 changed files with 14 additions and 0 deletions
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14
ext/interbase/interbase.c
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@ -2201,6 +2201,20 @@ PHP_FUNCTION(ibase_affected_rows)
Returns the number of rows in a result */
PHP_FUNCTION(ibase_num_rows)
{
/**
* This function relies on the InterBase API function isc_dsql_sql_info()
* which has a couple of limitations (which I hope will be fixed in
* future releases of Firebird):
* - row count is always zero before the first fetch;
* - row count for SELECT ... FOR UPDATE is broken -> never returns a
* higher number than the number of records fetched so far;
* - row count for other statements is merely a lower bound on the number
* of records => calling ibase_num_rows() again after a couple of fetches
* will most likely return a new (higher) figure for large result sets.
*
* 12-aug-2003 Ard Biesheuvel
*/
zval **result_arg;
ibase_result *ib_result;
char info_count[] = {isc_info_sql_records}, result[64];