superset/migrations/shared/utils.py

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from alembic import op
from sqlalchemy import engine_from_config
from sqlalchemy.engine import reflection
from sqlalchemy.exc import NoSuchTableError


def table_has_column(table: str, column: str) -> bool:
    """
    Checks if a column exists in a given table.

    :param table: A table name
    :param column: A column name
    :returns: True iff the column exists in the table
    """

    config = op.get_context().config
    engine = engine_from_config(
        config.get_section(config.config_ini_section), prefix="sqlalchemy."
    )
    insp = reflection.Inspector.from_engine(engine)
    try:
        return any(col["name"] == column for col in insp.get_columns(table))
    except NoSuchTableError:
        return False