patch 4.0
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@ -14,29 +14,34 @@
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#define SRC_SQL_ENGINE_EXPR_OB_EXPR_QUOTE_H_
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#include "sql/engine/expr/ob_expr_operator.h"
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namespace oceanbase {
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namespace sql {
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class ObExprQuote : public ObStringExprOperator {
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namespace oceanbase
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{
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namespace sql
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{
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class ObExprQuote: public ObStringExprOperator
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{
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public:
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ObExprQuote();
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explicit ObExprQuote(common::ObIAllocator& alloc);
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explicit ObExprQuote(common::ObIAllocator &alloc);
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virtual ~ObExprQuote();
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virtual int calc_result_type1(
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ObExprResType& type, ObExprResType& type1, common::ObExprTypeCtx& type_ctx) const override;
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virtual int calc_result1(common::ObObj& result, const common::ObObj& obj, common::ObExprCtx& expr_ctx) const override;
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virtual int cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const override;
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static int calc_quote_expr(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum);
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virtual int calc_result_type1(ObExprResType &type,
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ObExprResType &type1,
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common::ObExprTypeCtx &type_ctx) const;
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virtual int cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const override;
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static int calc_quote_expr(const ObExpr &expr, ObEvalCtx &ctx,
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ObDatum &res_datum);
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private:
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static const int16_t APPEND_LEN = 2;
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static const int16_t LEN_OF_NULL = 4;
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// quote string
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static int calc(common::ObString& res_str, common::ObString str, common::ObCollationType coll_type,
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common::ObIAllocator* allocator);
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static int string_write_buf(const common::ObString& str, char* buf, const int64_t buf_len, int64_t& pos);
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static int calc(common::ObString &res_str, common::ObString str,
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common::ObCollationType coll_type, common::ObIAllocator *allocator);
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static int string_write_buf(const common::ObString &str, char *buf, const int64_t buf_len, int64_t &pos);
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DISALLOW_COPY_AND_ASSIGN(ObExprQuote);
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};
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} // namespace sql
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} // namespace oceanbase
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}
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}
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#endif /* SRC_SQL_ENGINE_EXPR_OB_EXPR_QUOTE_H_ */
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