method
extract_scale
extract_scale(sql_type)
private
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# File activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb, line 221 def extract_scale(sql_type) case sql_type when /^(numeric|decimal|number)\((\d+)\)/i then 0 when /^(numeric|decimal|number)\((\d+)(,(\d+))\)/i then $4.to_i end end