CREATE TABLE dataset.TABLEUPPER (lower INT NOT NULL, UPPER INT NOT NULL, MiXeD INT NOT NULL)
CREATE TABLE dataset.tablelower (lower INT NOT NULL, UPPER INT NOT NULL, MiXeD INT NOT NULL)
CREATE TABLE dataset.tAbLEmIxEd (lower INT NOT NULL, UPPER INT NOT NULL, MiXeD INT NOT NULL)
CREATE TABLE dataset.TaBlEMiXeD1 (lower INT NOT NULL, UPPER INT NOT NULL, MiXeD INT NOT NULL)

SELECT table_name, column_name, data_type, description FROM `dataset.INFORMATION_SCHEMA.COLUMN_FIELD_PATHS`

table       column  type
-----       ------  ----
TaBlEMiXeD1 lower   INT64
TaBlEMiXeD1 UPPER   INT64
TaBlEMiXeD1 MiXeD   INT64
TABLEUPPER  lower   INT64
TABLEUPPER  UPPER   INT64
TABLEUPPER  MiXeD   INT64
tablelower  lower   INT64
tablelower  UPPER   INT64
tablelower  MiXeD   INT64
tAbLEmIxEd  lower   INT64
tAbLEmIxEd  UPPER   INT64
tAbLEmIxEd  MiXeD   INT64