FACTS :

1. Sequences are based on bigint arithmetic, so the range cannot exceed
   the range of an eight-byte integer (-9223372036854775808 to
   9223372036854775807). On some older platforms, there may be no
   compiler support for eight-byte integers, in which case sequences
   use regular integer arithmetic (range -2147483648 to +2147483647).
2. The CYCLE option allows the sequence to wrap around when the
   maxvalue or minvalue has been reached by an ascending or descending
   sequence respectively. If the limit is reached, the next number
   generated will be the minvalue or maxvalue, respectively.

Reality :

 * version
   PostgreSQL 8.4.12 on x86_64-pc-linux-gnu, compiled by GCC
   gcc-4.4.real (Debian 4.4.5-8) 4.4.5, 64-bit

 * Colonne|Type|Valeur
   sequence_name|name|xxx_id_seq
   last_value|bigint|1
   start_value|bigint|1
   increment_by|bigint|1
   max_value|bigint|9223372036854775807
   min_value|bigint|1
   cache_value|bigint|1
   log_cnt|bigint|32
   is_cycled|boolean|t
   is_called|boolean|t

 * In an increasing sequence whose max value is set to
   9223372036854775807 and cycle option is activated, as shown above,
   from 2147483647 to 9223372036854775807 it is displaying error
   "ERREUR:  entier en dehors des limites" and after that it resets it
   to 1 which is normal for any sequence whose cycle option is activated.
 * Can you please tell what to do during the interval (2147483647 to
   9223372036854775807) or How to restart the sequence at 2147483647 ?

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Harsh Raj SINGHAL
Cy-Play

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