Kristo Mägi questions

Kristo Mägi answers

• PostgreSQL: column "rolcatupdate" does not exist error?
• PostgreSQL query with dynamic number of columns
• Compare boolean values in PostgreSQL 9.3 json objects
• PostgreSQL - hiding tables from user [duplicate]
• Group_by - Ruby/Rails + Postgres
• How to use PostgreSQL JSONB_SET() to create new deep object element
• How to show leading/trailing whitespace in a PostgreSQL column?
• Query Postgres JSONB where key doesn't exist