def _get_sample_partition_query(self, database, table, column='*', limit=100): max_parts = QUERY_PARTITIONS_LIMIT.get() partitions = self.get_partitions(database, table, partition_spec=None, max_parts=max_parts) if partitions and max_parts: # Need to reformat partition specs for where clause syntax partition_specs = [ part.partition_spec.replace(',', ' AND ') for part in partitions ] partition_filters = ' OR '.join([ '(%s)' % partition_spec for partition_spec in partition_specs ]) partition_clause = 'WHERE %s' % partition_filters else: partition_clause = '' return "SELECT %(column)s FROM `%(database)s`.`%(table)s` %(partition_clause)s LIMIT %(limit)s" % \ {'column': column, 'database': database, 'table': table.name, 'partition_clause': partition_clause, 'limit': limit}
def _get_sample_partition_query(self, database, table, column='*', limit=100): max_parts = QUERY_PARTITIONS_LIMIT.get() partitions = self.get_partitions(database, table, partition_spec=None, max_parts=max_parts) if partitions and max_parts: # Need to reformat partition specs for where clause syntax partition_specs = [part.partition_spec.replace(',', ' AND ') for part in partitions] partition_filters = ' OR '.join(['(%s)' % partition_spec for partition_spec in partition_specs]) partition_clause = 'WHERE %s' % partition_filters else: partition_clause = '' return "SELECT %(column)s FROM `%(database)s`.`%(table)s` %(partition_clause)s LIMIT %(limit)s" % \ {'column': column, 'database': database, 'table': table.name, 'partition_clause': partition_clause, 'limit': limit}
def _get_sample_partition_query(self, database, table, limit): max_parts = QUERY_PARTITIONS_LIMIT.get() partitions = self.get_partitions(database, table, partition_spec=None, max_parts=max_parts) if partitions and max_parts: # Need to reformat partition specs for where clause syntax partition_specs = [part.partition_spec.replace(",", " AND ") for part in partitions] partition_filters = " OR ".join(["(%s)" % partition_spec for partition_spec in partition_specs]) partition_clause = "WHERE %s" % partition_filters else: partition_clause = "" return "SELECT * FROM `%(database)s`.`%(table)s` %(partition_clause)s LIMIT %(limit)s" % { "database": database, "table": table.name, "partition_clause": partition_clause, "limit": limit, }
def _get_sample_partition_query(self, database, table, column='*', limit=100, operation=None): max_parts = QUERY_PARTITIONS_LIMIT.get() partitions = self.get_partitions(database, table, partition_spec=None, max_parts=max_parts) if partitions and max_parts: # Need to reformat partition specs for where clause syntax partition_specs = [part.partition_spec.replace(',', ' AND ') for part in partitions] partition_filters = ' OR '.join(['(%s)' % partition_spec for partition_spec in partition_specs]) partition_clause = 'WHERE %s' % partition_filters else: partition_clause = '' if operation == 'distinct': prefix = 'SELECT DISTINCT %s' % column elif operation == 'max': prefix = 'SELECT max(%s)' % column elif operation == 'min': prefix = 'SELECT min(%s)' % column else: prefix = 'SELECT %s' % column return prefix + " FROM `%(database)s`.`%(table)s` %(partition_clause)s LIMIT %(limit)s" % \ {'database': database, 'table': table.name, 'partition_clause': partition_clause, 'limit': limit}
def _get_sample_partition_query(self, database, table, column='*', limit=100, operation=None): max_parts = QUERY_PARTITIONS_LIMIT.get() partitions = self.get_partitions(database, table, partition_spec=None, max_parts=max_parts) if partitions and max_parts: # Need to reformat partition specs for where clause syntax partition_specs = [part.partition_spec.replace(',', ' AND ') for part in partitions] partition_filters = ' OR '.join(['(%s)' % partition_spec for partition_spec in partition_specs]) partition_clause = 'WHERE %s' % partition_filters else: partition_clause = '' if operation == 'distinct': prefix = 'SELECT DISTINCT %s' % column elif operation == 'max': prefix = 'SELECT max(%s)' % column elif operation == 'min': prefix = 'SELECT min(%s)' % column else: prefix = 'SELECT %s' % column return prefix + " FROM `%(database)s`.`%(table)s` %(partition_clause)s LIMIT %(limit)s" % \ {'database': database, 'table': table.name, 'partition_clause': partition_clause, 'limit': limit}