<filename>compiler/dialect_libraries/bq_library.py
#!/usr/bin/python
#
# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

library = """
->(left:, right:) = {arg: left, value: right};

# All ORDER BY arguments are wrapped, to avoid confusion with
# column index.
ArgMin(a) = SqlExpr("ARRAY_AGG({arg} order by [{value}][offset(0)] limit 1)[OFFSET(0)]",
                    {arg: a.arg, value: a.value});

ArgMax(a) = SqlExpr(
  "ARRAY_AGG({arg} order by  [{value}][offset(0)] desc limit 1)[OFFSET(0)]",
  {arg: a.arg, value: a.value});

ArgMaxK(a, l) = SqlExpr(
  "ARRAY_AGG({arg} order by  [{value}][offset(0)] desc limit {lim})",
  {arg: a.arg, value: a.value, lim: l});

ArgMinK(a, l) = SqlExpr(
  "ARRAY_AGG({arg} order by  [{value}][offset(0)] limit {lim})",
  {arg: a.arg, value: a.value, lim: l});

Array(a) = SqlExpr(
  "ARRAY_AGG({value} order by [{arg}][offset(0)])",
  {arg: a.arg, value: a.value});

"""

<filename>compiler/dialect_libraries/bq_library.py
#!/usr/bin/python
#
# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

library = """
->(left:, right:) = {arg: left, value: right};

# All ORDER BY arguments are wrapped, to avoid confusion with
# column index.
ArgMin(a) = SqlExpr("ARRAY_AGG({arg} order by [{value}][offset(0)] limit 1)[OFFSET(0)]",
                    {arg: a.arg, value: a.value});

ArgMax(a) = SqlExpr(
  "ARRAY_AGG({arg} order by  [{value}][offset(0)] desc limit 1)[OFFSET(0)]",
  {arg: a.arg, value: a.value});

ArgMaxK(a, l) = SqlExpr(
  "ARRAY_AGG({arg} order by  [{value}][offset(0)] desc limit {lim})",
  {arg: a.arg, value: a.value, lim: l});

ArgMinK(a, l) = SqlExpr(
  "ARRAY_AGG({arg} order by  [{value}][offset(0)] limit {lim})",
  {arg: a.arg, value: a.value, lim: l});

Array(a) = SqlExpr(
  "ARRAY_AGG({value} order by [{arg}][offset(0)])",
  {arg: a.arg, value: a.value});

"""

#!/usr/bin/python # # Copyright 2020 Google LLC # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # #      http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. ->(left:, right:) = {arg: left, value: right};  # All ORDER BY arguments are wrapped, to avoid confusion with # column index. ArgMin(a) = SqlExpr("ARRAY_AGG({arg} order by [{value}][offset(0)] limit 1)[OFFSET(0)]",                     {arg: a.arg, value: a.value});  ArgMax(a) = SqlExpr(   "ARRAY_AGG({arg} order by  [{value}][offset(0)] desc limit 1)[OFFSET(0)]",   {arg: a.arg, value: a.value});  ArgMaxK(a, l) = SqlExpr(   "ARRAY_AGG({arg} order by  [{value}][offset(0)] desc limit {lim})",   {arg: a.arg, value: a.value, lim: l});  ArgMinK(a, l) = SqlExpr(   "ARRAY_AGG({arg} order by  [{value}][offset(0)] limit {lim})",   {arg: a.arg, value: a.value, lim: l});  Array(a) = SqlExpr(   "ARRAY_AGG({value} order by [{arg}][offset(0)])",   {arg: a.arg, value: a.value});