SELECT table_schema, table_name, Count(*) AS nr_of_boolean_columns
FROM INFORMATION_SCHEMA.columns
WHERE data_type~*'bool'
AND (table_schema, table_name) IN (SELECT table_schema, table_name
FROM INFORMATION_SCHEMA.tables WHERE table_type='BASE TABLE')
AND table_schema NOT IN (SELECT schema_name
FROM INFORMATION_SCHEMA.schemata
WHERE schema_name<>'public' AND
schema_owner='postgres' AND schema_name IS NOT NULL)
GROUP BY table_schema, table_name
HAVING Count(*)>1
ORDER BY Count(*) DESC;
Collections
This query belongs to the following collections:
Name
Description
Find problems by overview
Queries that results point to different aspects of database that might have problems. A human reviewer has to decide based on the results as to whether there are problems or not .
Categories
This query is classified under the following categories:
Name
Description
Boolean data
Queries of this category provide information about truth-values data that is kept in the database.
Data types
Queries of this category provide information about the data types and their usage.