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• jsonb_extract_path   ---- this expression specifies the PATH necessary to get the last field entered in the path; the result is a json object and will display in double quotes
• jsonb_extract_path_text   ---- this expression does the same thing as jsonb_extract_path, but returns a TEXT object (displays without quotes)
• jsonb_array_elements   ---- this expression is used for extracting values within an array object
• the operator #>>. The format for using this operator is: table_name_or_alias.jsonb #>> '{path_of_fields_in_the_hierarchy_separated_by_commas}' 
  • Example: audit_loan.jsonb #>> '{loan, metadata, updatedByUserId}'  -- this will get the value for "updatedByUserId"

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