Method tableExist

dialect/sql/schema/postgres.go:62–70

tableExist checks if a table exists in the database and current schema.

(ctx context.Context, conn dialect.ExecQuerier, name string)

// tableExist checks if a table exists in the database and current schema.
func (d *Postgres) tableExist(ctx context.Context, conn dialect.ExecQuerier, name string) (bool, error) {
	query, args := sql.Dialect(dialect.Postgres).
		Select(sql.Count("*")).From(sql.Table("tables").Schema("information_schema")).
		Where(sql.And(
			d.matchSchema(),
			sql.EQ("table_name", name),
		)).Query()
	return exist(ctx, conn, query, args...)
}

// matchSchema returns the predicate for matching table schema.
func (d *Postgres) matchSchema(columns ...string) *sql.Predicate {