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"""psycopg2cffi -- global constants
This module can be imported from everywhere without problems of cross imports.
"""
# Isolation level values.
ISOLATION_LEVEL_AUTOCOMMIT = 0
ISOLATION_LEVEL_READ_UNCOMMITTED = 4
ISOLATION_LEVEL_READ_COMMITTED = 1
ISOLATION_LEVEL_REPEATABLE_READ = 2
ISOLATION_LEVEL_SERIALIZABLE = 3
# psycopg connection status values.
STATUS_SETUP = 0
STATUS_READY = 1
STATUS_BEGIN = 2
STATUS_SYNC = 3 # currently unused
STATUS_ASYNC = 4 # currently unused
STATUS_PREPARED = 5
STATUS_CONNECTING = 20
STATUS_DATESTYLE = 21
# This is a usefull mnemonic to check if the connection is in a transaction
STATUS_IN_TRANSACTION = STATUS_BEGIN
# psycopg asynchronous connection polling values
POLL_OK = 0
POLL_READ = 1
POLL_WRITE = 2
POLL_ERROR = 3
# Backend transaction status values.
TRANSACTION_STATUS_IDLE = 0
TRANSACTION_STATUS_ACTIVE = 1
TRANSACTION_STATUS_INTRANS = 2
TRANSACTION_STATUS_INERROR = 3
TRANSACTION_STATUS_UNKNOWN = 4
ASYNC_DONE = 0
ASYNC_READ = 1
ASYNC_WRITE = 2
LOBJECT_READ = 1
LOBJECT_WRITE = 2
LOBJECT_TEXT = 4
LOBJECT_BINARY = 8
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