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##########################################################################
#
# pgAdmin 4 - PostgreSQL Tools
#
# Copyright (C) 2013 - 2024, The pgAdmin Development Team
# This software is released under the PostgreSQL Licence
#
##########################################################################
"""Add support for prepare_threshold param
https://www.psycopg.org/psycopg3/docs/advanced/prepare.html#prepared-statements
Revision ID: 44b9ce549393
Revises: 9426ad06a63b
Create Date: 2023-10-12 12:15:01.757931
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = '44b9ce549393'
down_revision = '9426ad06a63b'
branch_labels = None
depends_on = None
def upgrade():
with op.batch_alter_table(
"server", table_kwargs={'sqlite_autoincrement': True}) as batch_op:
batch_op.add_column(sa.Column('prepare_threshold', sa.Integer(),
nullable=True))
with op.batch_alter_table("sharedserver") as batch_op:
batch_op.add_column(sa.Column('prepare_threshold', sa.Integer(),
nullable=True))
# get metadata from current connection
meta = sa.MetaData()
# define table representation
meta.reflect(op.get_bind(), only=('server', 'sharedserver'))
table = sa.Table('server', meta)
op.execute(
table.update().values(prepare_threshold=5)
)
table = sa.Table('sharedserver', meta)
op.execute(
table.update().values(prepare_threshold=5)
)
def downgrade():
# pgAdmin only upgrades, downgrade not implemented.
pass