geonames_select.output(),
SumAggregator(geonames_select.output().schema(), 'count'))
engines.append(geonames_aggregate)
select = Select(
channel,
UniversalSelect(channel.schema(), {
'oid': {
'type': int,
'args': ['oid'],
'function': lambda v: v
},
}))
engines.append(select)
counties_grouper = Group(select.output(), {'oid': lambda a, b: a == b})
engines.append(counties_grouper)
joiner = Join(counties_grouper.output(), geonames_aggregate.output())
engines.append(joiner)
mux_streams.append(joiner.output())
# mux_streams.append(counties_select.output())
mux = Mux(*mux_streams)
engines.append(mux)
result_stack = ResultFile(
'results.txt',
mux.output(),
)
engines.append(result_stack)
'counties.oid': {
'type': int,
'args': ['oid'],
'function': lambda v: v,
},
'counties.the_geom': {
'type': Geometry,
'args': ['counties.the_geom'],
'function': lambda v: v,
},
}))
engines.append(counties_oid_select)
# Group states by OID
states_group = Group(states_select.output(), {
'states.oid': lambda a, b: a == b
})
engines.append(states_group)
# Join counties and states
states_counties_join = Join(
states_group.output(),
counties_oid_select.output(),
)
engines.append(states_counties_join)
# De-multiplex the joined stream across multiple tracks for better CPU core
# utilization.
demux = Demux(states_counties_join.output())
mux_streams = []
for i in range(tracks):
data_schema = Schema()
data_schema.append(Attribute('name', str))
data_schema.append(Attribute('age', int))
data_schema.append(Attribute('rowid', int, True))
data_source = DBTable('test.db', 'person', data_schema)
# create a data accessor
data_accessor = DataAccessor(
query_streamer.output(),
data_source,
FindRange
)
query_grouper = Group(
query_streamer.output(),
{'age': lambda a, b: a is b}
)
qselect = Select(
query_grouper.output(),
AttributeRename(
query_grouper.output().schema(),
{ 'age': 'age_range' }
)
)
aggregate = Aggregate(
data_accessor.output(),
SumAgeAggregator(data_accessor.output().schema())
)
data_schema.append(Attribute('age', int))
data_schema.append(Attribute('rowid', int, True))
data_source = DBTable('test.db', 'person', data_schema)
# create a data accessor
data_accessor = DataAccessor(
query_streamer.output(),
data_source,
FindRange
)
name_age_combiner = NameAgeCombiner(data_accessor.output().schema())
select = Select(data_accessor.output(), name_age_combiner)
query_grouper = Group(
query_streamer.output(),
{'age': lambda a, b: a is b}
)
joiner = Join(query_grouper.output(), select.output())
filter = Filter(joiner.output(), FilterNameAge(joiner.output().schema()))
result_stack = ResultStack(
filter.output(),
# joiner.output(),
# query_streamer.output(),
# query_grouper.output(),
# select.output(),
)
info_queue = Queue()
# The query stream contains only a single query.
query_streamer = ArrayStreamer(query_schema, [
(IntInterval(0, int(1E10)), ),
])
engines.append(query_streamer)
# Create a family data source: a table in the input database.
family_source = DBTable(input_file, 'family', family_schema)
# Data accessor for the species data source.
family_accessor = DataAccessor(query_streamer.output(), family_source,
FindRange)
engines.append(family_accessor)
# A group mini-engine to split the family IDs into groups.
family_id_grouper = Group(family_accessor.output(), {
'family.id': lambda a, b: a == b
})
engines.append(family_id_grouper)
# Select only the family ID for querying genera.
family_id_select = Select(
family_accessor.output(),
UniversalSelect(
family_accessor.output().schema(), {
'genus.family_id': {
'type': int,
'args': ['family.id'],
'function': lambda v: v
}
}))
engines.append(family_id_select)
])
# schema definition of the data stream
data_schema = Schema()
data_schema.append(Attribute('name', str))
data_schema.append(Attribute('age', int))
data_schema.append(Attribute('rowid', int, True))
data_source = DBTable('test.db', 'person', data_schema)
# create a data accessor
data_accessor = DataAccessor(query_streamer.output(), data_source, FindRange)
name_age_combiner = NameAgeCombiner(data_accessor.output().schema())
select = Select(data_accessor.output(), name_age_combiner)
query_grouper = Group(query_streamer.output(), {'age': lambda a, b: a is b})
joiner = Join(query_grouper.output(), select.output())
filter = Filter(joiner.output(), FilterNameAge(joiner.output().schema()))
result_stack = ResultStack(
filter.output(),
# joiner.output(),
# query_streamer.output(),
# query_grouper.output(),
# select.output(),
)
info_queue = Queue()
UniversalSelect(
geonames_accessor.output().schema(),
{"count": {"type": int, "args": ["geonames.location"], "function": lambda v: 1}},
),
)
engines.append(geonames_select)
geonames_aggregate = Aggregate(geonames_select.output(), SumAggregator(geonames_select.output().schema(), "count"))
engines.append(geonames_aggregate)
select = Select(
channel, UniversalSelect(channel.schema(), {"oid": {"type": int, "args": ["oid"], "function": lambda v: v}})
)
engines.append(select)
counties_grouper = Group(select.output(), {"oid": lambda a, b: a == b})
engines.append(counties_grouper)
joiner = Join(counties_grouper.output(), geonames_aggregate.output())
engines.append(joiner)
mux_streams.append(joiner.output())
# mux_streams.append(counties_select.output())
mux = Mux(*mux_streams)
engines.append(mux)
result_stack = ResultFile("results.txt", mux.output())
engines.append(result_stack)
# result_stack = ResultStack(
# mux.output(),
])
engines.append(query_streamer)
# Create a family data source: a table in the input database.
family_source = DBTable(input_file, 'family', family_schema)
# Data accessor for the species data source.
family_accessor = DataAccessor(
query_streamer.output(),
family_source,
FindRange
)
engines.append(family_accessor)
# A group mini-engine to split the family IDs into groups.
family_id_grouper = Group(
family_accessor.output(),
{'family.id': lambda a, b: a == b}
)
engines.append(family_id_grouper)
# Select only the family ID for querying genera.
family_id_select = Select(
family_accessor.output(),
UniversalSelect(
family_accessor.output().schema(),
{
'genus.family_id': {
'type': int,
'args': ['family.id'],
'function': lambda v: v
}
}
'args': ['states.oid'],
'function': lambda v: v,
},
'states.geom': {
'type': Geometry,
'args': ['queries.geom', 'states.geom'],
'function': lambda a, b: intersection(a, b),
}
}
)
)
engines.append(states_trim)
states_group = Group(
states_trim.output(),
{
'states.oid': lambda a, b: a == b,
}
)
engines.append(states_group)
#############################################################
#
# Counties
#
#############################################################
counties_query = Select(
states_trim.output(),
UniversalSelect(
states_trim.output().schema(),
{
zip_accessor = DataAccessor(select.output(), zip_source, FindRange)
sub_schema2 = SubSchema(zip_accessor.output().schema(), {'oid': 'zip'})
zip_select = Select(zip_accessor.output(), sub_schema2)
zip_selects.append(zip_select)
sort = Sort(
zip_select.output(),
{
'zip': lambda a, b: cmp(a / 100, b / 100)
},
# {'zip': None },
# True
)
sorts.append(sort)
group = Group(sort.output(), {
'zip': lambda a, b: (a / 1000) == (b / 1000)
}
# {'zip': None }
)
groups.append(group)
data_accessors.append(zip_accessor)
mux = Mux(*[s.output() for s in groups])
result_stack = ResultStack(
# query_streamer.output(),
mux.output(),
# data_accessor.output(),
)
tasks = []
UniversalSelect(
plants_filter.output().schema(), {
'plants.height': {
'type': int,
'args': ['plants.height'],
'function': lambda v: v
}
}))
engines.append(plants_height_select)
plants_height_aggregate = Aggregate(
plants_height_select.output(),
MaxHeightAggregator(plants_height_select.output().schema()))
engines.append(plants_height_aggregate)
species_id_grouper = Group(channel, {'species.id': lambda a, b: a == b})
engines.append(species_id_grouper)
joiner = Join(species_id_grouper.output(),
plants_height_aggregate.output())
engines.append(joiner)
mux_streams.append(joiner.output())
mux = Mux(*mux_streams)
result_stack = ResultFile(
'results.txt',
mux.output(),
)
info_queue = Queue()
'args': ['oid'],
'function': lambda v: v,
},
'counties.the_geom': {
'type': Geometry,
'args': ['counties.the_geom'],
'function': lambda v: v,
},
}
)
)
engines.append(counties_oid_select)
# Group states by OID
states_group = Group(
states_select.output(),
{'states.oid': lambda a, b: a == b}
)
engines.append(states_group)
# Join counties and states
states_counties_join = Join(
states_group.output(),
counties_oid_select.output(),
)
engines.append(states_counties_join)
# De-multiplex the joined stream across multiple tracks for better CPU core
# utilization.
demux = Demux(states_counties_join.output())
mux_streams = []
for i in range(tracks):
states_join.output().schema(), {
'states.oid': {
'type': int,
'args': ['states.oid'],
'function': lambda v: v,
},
'states.geom': {
'type': Geometry,
'args': ['queries.geom', 'states.geom'],
'function': lambda a, b: intersection(a, b),
}
}))
engines.append(states_trim)
states_group = Group(states_trim.output(), {
'states.oid': lambda a, b: a == b,
})
engines.append(states_group)
#############################################################
#
# Counties
#
#############################################################
counties_query = Select(
states_trim.output(),
UniversalSelect(
states_trim.output().schema(), {
'counties.geom': {
'type': Geometry,
'args': ['plants.height'],
'function': lambda v: v
}
}
)
)
engines.append(plants_height_select)
plants_height_aggregate = Aggregate(
plants_height_select.output(),
MaxHeightAggregator(plants_height_select.output().schema())
)
engines.append(plants_height_aggregate)
species_id_grouper = Group(
channel,
{'species.id': lambda a, b: a == b}
)
engines.append(species_id_grouper)
joiner = Join(species_id_grouper.output(), plants_height_aggregate.output())
engines.append(joiner)
mux_streams.append(joiner.output())
mux = Mux(*mux_streams)
result_stack = ResultFile(
'results.txt',
mux.output(),
)
info_queue = Queue()