Module: Bmg::Sql::Summarizer

Includes:
Expr
Defined in:
lib/bmg/sql/nodes/summarizer.rb

Constant Summary

Constants included from Expr

Expr::AND, Expr::AS, Expr::COMMA, Expr::DOT, Expr::EQUAL, Expr::EXISTS, Expr::FALSE, Expr::GREATER, Expr::GREATER_OR_EQUAL, Expr::IN, Expr::LEFT_PARENTHESE, Expr::LESS, Expr::LESS_OR_EQUAL, Expr::NOT, Expr::NOT_EQUAL, Expr::OR, Expr::QUOTE, Expr::RIGHT_PARENTHESE, Expr::SPACE, Expr::TRUE

Instance Method Summary collapse

Methods included from Expr

#each_child, #flatten, #group_by?, #join?, #limit_or_offset?, #order_by?, #ordering, #set_operator?, #with_insert, #with_push, #with_update

Instance Method Details

#is_computed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bmg/sql/nodes/summarizer.rb', line 14

def is_computed?
  true
end

#summary_expr ⇒ Object 



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# File 'lib/bmg/sql/nodes/summarizer.rb', line 10

def summary_expr
  self.last
end

#summary_func ⇒ Object 



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# File 'lib/bmg/sql/nodes/summarizer.rb', line 6

def summary_func
  self[1]
end

#to_sql(buffer, dialect) ⇒ Object 



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# File 'lib/bmg/sql/nodes/summarizer.rb', line 18

def to_sql(buffer, dialect)
  buffer << summary_func.upcase << "("
  summary_expr.to_sql(buffer, dialect)
  buffer << ")"
  buffer
end