Common Case Scenario:
You have a very aggravated person who demands you purge their email from any table you have in your system.
You have lots of tables that have email addresses. How do you find which tables have this person's email address.
Below is a handy plpgsql function we wrote that does the following. Given a search criteria, field name pattern, table_name pattern,
schema name pattern, data type pattern, and max length of field to check, it will search all fields in the database fitting those
patterns and return to you the names of these schema.table.field names that contain the search phrase.
To use the below you would do something like:
SELECT pc_search_tablefield('%john@hotmail%', '%email%', '%', '%', '%', null);
The above will return all database field names that have the phrase email in the field name and that contain the term john@hotmail