def get_sql(self, get_ids):
sql = self._compose_sql(get_ids)
# ORDERING
sort = []
ordering = []
for ci, c in enumerate(self.columns):
if c.sort:
sort.append(quote_column(c.column_alias) + SQL_IS_NOT_NULL)
sort.append(quote_column(c.column_alias))
ordering.append(ci)
union_all_sql = SQL_UNION_ALL.join(sql)
union_all_sql = ConcatSQL(
SQL_SELECT,
SQL_STAR,
SQL_FROM,
sql_alias(sql_iso(union_all_sql), "a"),
SQL_ORDERBY,
sql_list(sort),
)
if DEBUG:
Log.note("{{sql}}", sql=union_all_sql)
return union_all_sql
push_child=push_child, # CAN NOT HANDLE TUPLES IN COLUMN
pull=pull,
sql=sql,
type=sql_type_to_json_type[sql_type],
column_alias=sql_name)
vals = [v for t, v in edge_values]
if query_edge.domain.type == "set":
domain_name = "d" + text(edge_index) + "c" + text(column_index)
domain_names = [domain_name]
if len(edge_names) > 1:
Log.error("Do not know how to handle")
if query_edge.value:
domain = SQL_UNION_ALL.join(
SQL_SELECT + sql_alias(
quote_value(coalesce(p.dataIndex, i)), "rownum") +
SQL_COMMA +
sql_alias(quote_value(p.value), domain_name)
for i, p in enumerate(query_edge.domain.partitions))
if query_edge.allowNulls:
domain += (SQL_UNION_ALL + SQL_SELECT + sql_alias(
quote_value(len(query_edge.domain.partitions)),
"rownum") + SQL_COMMA +
sql_alias(SQL_NULL, domain_name))
where = None
join_type = SQL_LEFT_JOIN if query_edge.allowNulls else SQL_INNER_JOIN
on_clause = (SQL_OR.join(
quote_column(edge_alias, k) + SQL_EQ + v
for k, v in zip(domain_names, vals)) + SQL_OR +
sql_iso(
quote_column(edge_alias, domain_name) +
SQL_IS_NULL + SQL_AND +
def update(self, command):
"""
:param command: EXPECTING dict WITH {"set": s, "clear": c, "where": w} FORMAT
"""
command = wrap(command)
clear_columns = set(listwrap(command['clear']))
# REJECT DEEP UPDATES
touched_columns = command.set.keys() | clear_columns
for c in self.schema.columns:
if c.name in touched_columns and len(c.nested_path) > 1:
Log.error("Deep update not supported")
# ADD NEW COLUMNS
where = jx_expression(command.where) or TRUE
_vars = where.vars()
_map = {
v: c.es_column
for v in _vars for c in self.columns.get(v, Null)
if c.jx_type not in STRUCT
}
where_sql = where.map(_map).to_sql(self.schema)[0].sql.b
new_columns = set(command.set.keys()) - set(
c.name for c in self.schema.columns)
for new_column_name in new_columns:
nested_value = command.set[new_column_name]
ctype = get_jx_type(nested_value)
column = Column(name=new_column_name,
jx_type=ctype,
es_index=self.name,
es_type=json_type_to_sqlite_type(ctype),
es_column=typed_column(new_column_name, ctype),
last_updated=Date.now())
self.add_column(column)
# UPDATE THE NESTED VALUES
for nested_column_name, nested_value in command.set.items():
if get_jx_type(nested_value) == "nested":
nested_table_name = concat_field(self.name, nested_column_name)
nested_table = nested_tables[nested_column_name]
self_primary_key = sql_list(
quote_column(c.es_column) for u in self.uid
for c in self.columns[u])
extra_key_name = UID + text(len(self.uid))
extra_key = [e
for e in nested_table.columns[extra_key_name]][0]
sql_command = (
SQL_DELETE + SQL_FROM + quote_column(nested_table.name) +
SQL_WHERE + "EXISTS" +
sql_iso(SQL_SELECT + SQL_ONE + SQL_FROM +
sql_alias(quote_column(nested_table.name), "n") +
SQL_INNER_JOIN +
sql_iso(SQL_SELECT + self_primary_key + SQL_FROM +
quote_column(abs_schema.fact) + SQL_WHERE +
where_sql) + " t ON " +
SQL_AND.join(
quote_column("t", c.es_column) + SQL_EQ +
quote_column("n", c.es_column)
for u in self.uid for c in self.columns[u])))
self.db.execute(sql_command)
# INSERT NEW RECORDS
if not nested_value:
continue
doc_collection = {}
for d in listwrap(nested_value):
nested_table.flatten(d,
Data(),
doc_collection,
path=nested_column_name)
prefix = SQL_INSERT + quote_column(nested_table.name) + sql_iso(
sql_list([self_primary_key] + [quote_column(extra_key)] + [
quote_column(c.es_column)
for c in doc_collection.get(".", Null).active_columns
]))
# BUILD THE PARENT TABLES
parent = (SQL_SELECT + self_primary_key + SQL_FROM +
quote_column(abs_schema.fact) + SQL_WHERE +
jx_expression(command.where).to_sql(schema))
# BUILD THE RECORDS
children = SQL_UNION_ALL.join(
SQL_SELECT +
sql_alias(quote_value(i), extra_key.es_column) +
SQL_COMMA + sql_list(
sql_alias(quote_value(row[c.name]),
quote_column(c.es_column))
for c in doc_collection.get(".", Null).active_columns)
for i, row in enumerate(
doc_collection.get(".", Null).rows))
sql_command = (prefix + SQL_SELECT + sql_list([
quote_column("p", c.es_column) for u in self.uid
for c in self.columns[u]
] + [quote_column("c", extra_key)] + [
quote_column("c", c.es_column)
for c in doc_collection.get(".", Null).active_columns
]) + SQL_FROM + sql_iso(parent) + " p" + SQL_INNER_JOIN +
sql_iso(children) + " c" + SQL_ON + SQL_TRUE)
self.db.execute(sql_command)
# THE CHILD COLUMNS COULD HAVE EXPANDED
# ADD COLUMNS TO SELF
for n, cs in nested_table.columns.items():
for c in cs:
column = Column(name=c.name,
jx_type=c.jx_type,
es_type=c.es_type,
es_index=c.es_index,
es_column=c.es_column,
nested_path=[nested_column_name] +
c.nested_path,
last_updated=Date.now())
if c.name not in self.columns:
self.columns[column.name] = {column}
elif c.jx_type not in [
c.jx_type for c in self.columns[c.name]
]:
self.columns[column.name].add(column)
command = ConcatSQL(
SQL_UPDATE, quote_column(self.name), SQL_SET,
sql_list([
quote_column(c.es_column) + SQL_EQ +
quote_value(get_if_type(v, c.jx_type))
for c in self.schema.columns
if c.jx_type != NESTED and len(c.nested_path) == 1
for v in [command.set[c.name]] if v != None
] + [
quote_column(c.es_column) + SQL_EQ + SQL_NULL
for c in self.schema.columns
if (c.name in clear_columns and command.set[c.name] != None
and c.jx_type != NESTED and len(c.nested_path) == 1)
]), SQL_WHERE, where_sql)
with self.db.transaction() as t:
t.execute(command)
def _make_sql_for_one_nest_in_set_op(
self,
primary_nested_path,
selects, # EVERY SELECT CLAUSE (NOT TO BE USED ON ALL TABLES, OF COURSE
where_clause,
active_columns,
index_to_sql_select # MAP FROM INDEX TO COLUMN (OR SELECT CLAUSE)
):
"""
FOR EACH NESTED LEVEL, WE MAKE A QUERY THAT PULLS THE VALUES/COLUMNS REQUIRED
WE `UNION ALL` THEM WHEN DONE
:param primary_nested_path:
:param selects:
:param where_clause:
:param active_columns:
:param index_to_sql_select:
:return: SQL FOR ONE NESTED LEVEL
"""
parent_alias = "a"
from_clause = []
select_clause = []
children_sql = []
done = []
if not where_clause:
where_clause = SQL_TRUE
# STATEMENT FOR EACH NESTED PATH
for i, (nested_path, sub_table) in enumerate(self.snowflake.tables):
if any(startswith_field(nested_path, d) for d in done):
continue
alias = "__" + unichr(ord('a') + i) + "__"
if primary_nested_path == nested_path:
select_clause = []
# ADD SELECT CLAUSE HERE
for select_index, s in enumerate(selects):
sql_select = index_to_sql_select.get(select_index)
if not sql_select:
select_clause.append(selects[select_index])
continue
if startswith_field(sql_select.nested_path[0],
nested_path):
select_clause.append(
sql_alias(sql_select.sql, sql_select.column_alias))
else:
# DO NOT INCLUDE DEEP STUFF AT THIS LEVEL
select_clause.append(
sql_alias(SQL_NULL, sql_select.column_alias))
if nested_path == ".":
from_clause.append(SQL_FROM)
from_clause.append(
sql_alias(quote_column(self.snowflake.fact_name),
alias))
else:
from_clause.append(SQL_LEFT_JOIN)
from_clause.append(
sql_alias(
quote_column(self.snowflake.fact_name,
sub_table.name), alias))
from_clause.append(SQL_ON)
from_clause.append(quote_column(alias, PARENT))
from_clause.append(SQL_EQ)
from_clause.append(quote_column(parent_alias, UID))
where_clause = sql_iso(
where_clause) + SQL_AND + quote_column(alias,
ORDER) + " > 0"
parent_alias = alias
elif startswith_field(primary_nested_path, nested_path):
# PARENT TABLE
# NO NEED TO INCLUDE COLUMNS, BUT WILL INCLUDE ID AND ORDER
if nested_path == ".":
from_clause.append(SQL_FROM)
from_clause.append(
sql_alias(quote_column(self.snowflake.fact_name),
alias))
else:
parent_alias = alias = unichr(ord('a') + i - 1)
from_clause.append(SQL_LEFT_JOIN)
from_clause.append(
sql_alias(
quote_column(self.snowflake.fact_name,
sub_table.name), alias))
from_clause.append(SQL_ON)
from_clause.append(quote_column(alias, PARENT))
from_clause.append(SQL_EQ)
from_clause.append(quote_column(parent_alias, UID))
where_clause = sql_iso(
where_clause) + SQL_AND + quote_column(
parent_alias, ORDER) + " > 0"
parent_alias = alias
elif startswith_field(nested_path, primary_nested_path):
# CHILD TABLE
# GET FIRST ROW FOR EACH NESTED TABLE
from_clause.append(SQL_LEFT_JOIN)
from_clause.append(
sql_alias(
quote_column(self.snowflake.fact_name, sub_table.name),
alias))
from_clause.append(SQL_ON)
from_clause.append(quote_column(alias, PARENT))
from_clause.append(SQL_EQ)
from_clause.append(quote_column(parent_alias, UID))
from_clause.append(SQL_AND)
from_clause.append(quote_column(alias, ORDER))
from_clause.append(SQL_EQ)
from_clause.append(SQL_ZERO)
# IMMEDIATE CHILDREN ONLY
done.append(nested_path)
# NESTED TABLES WILL USE RECURSION
children_sql.append(
self._make_sql_for_one_nest_in_set_op(
nested_path,
selects, # EVERY SELECT CLAUSE (NOT TO BE USED ON ALL TABLES, OF COURSE
where_clause,
active_columns,
index_to_sql_select # MAP FROM INDEX TO COLUMN (OR SELECT CLAUSE)
))
else:
# SIBLING PATHS ARE IGNORED
continue
sql = SQL_UNION_ALL.join([
ConcatSQL(SQL_SELECT, sql_list(select_clause),
ConcatSQL(*from_clause), SQL_WHERE, where_clause)
], *children_sql)
return sql