pg_set_chunked_rows_size

    (PHP 8 >= 8.4.0)

    pg_set_chunked_rows_size — Set the query results to be retrieved in chunk mode

    Açıklama

    pg_set_chunked_rows_size(PgSql\Connection $connection, int $size): bool

    Set the query results to be retrieved in chunk mode. The query results returned afterward will be divided into multiple chunks, each containing up to size rows. This function must be called before retrieving results with pg_get_result(). This function is only available when libpq is version 17 or higher.

    Bağımsız Değişkenler

    connection

    PostgreSQL veritabanı bağlantısı özkaynağı.

    size
    The number of rows to be retrieved in each chunk.

    Dönen Değerler

    Başarı durumunda true, başarısızlık durumunda false döner.

    Hatalar/İstisnalar

    If size is less than 1, a ValueError will be thrown.

    Örnekler

    Örnek 1 pg_result_memory_size() example

    <?php

    $conn     = pg_connect($conn_str);

    for (    $i = 0; $i < 10; $i ++) {
    pg_query($conn, "INSERT INTO users DEFAULT VALUES");
    }

    pg_send_query($conn, "SELECT * FROM users");
    pg_set_chunked_rows_size($conn, 1);

    $result = pg_get_result($conn);
    var_dump(pg_num_rows($result));

    // No effect after the result is retrieved
    var_dump(pg_set_chunked_rows_size($conn, 10));

    Yukarıdaki örneğin çıktısı:

    int(1)
bool(false)

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