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from migrate.changeset import ansisql
from sqlalchemy.databases import postgres as sa_base
#import sqlalchemy as sa
PGSchemaGenerator = sa_base.PGSchemaGenerator
class PGColumnGenerator(PGSchemaGenerator,ansisql.ANSIColumnGenerator):
def _do_quote_table_identifier(self, identifier):
return identifier
class PGColumnDropper(ansisql.ANSIColumnDropper):
def _do_quote_table_identifier(self, identifier):
return identifier
class PGSchemaChanger(ansisql.ANSISchemaChanger):
def _do_quote_table_identifier(self, identifier):
return identifier
def _do_quote_column_identifier(self, identifier):
return '"%s"'%identifier
class PGConstraintGenerator(ansisql.ANSIConstraintGenerator):
def _do_quote_table_identifier(self, identifier):
return identifier
class PGConstraintDropper(ansisql.ANSIConstraintDropper):
pass
class PGDialect(ansisql.ANSIDialect):
columngenerator = PGColumnGenerator
columndropper = PGColumnDropper
schemachanger = PGSchemaChanger
constraintgenerator = PGConstraintGenerator
constraintdropper = PGConstraintDropper
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