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patch 4.0

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wangzelin.wzl
2022-10-24 10:34:53 +08:00
parent 4ad6e00ec3
commit 93a1074b0c
10533 changed files with 2588271 additions and 2299373 deletions
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46
src/sql/engine/expr/ob_expr_concat_ws.h
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@ -13,35 +13,39 @@
#ifndef SRC_SQL_ENGINE_EXPR_OB_EXPR_CONCAT_WS_H_
#define SRC_SQL_ENGINE_EXPR_OB_EXPR_CONCAT_WS_H_
#include "sql/engine/expr/ob_expr_operator.h"
namespace oceanbase {
namespace sql {
// stands for Concatenate With Separator and is a special form of CONCAT()
class ObExprConcatWs : public ObStringExprOperator {
namespace oceanbase
{
namespace sql
{
//stands for Concatenate With Separator and is a special form of CONCAT()
class ObExprConcatWs: public ObStringExprOperator
{
public:
ObExprConcatWs();
explicit ObExprConcatWs(common::ObIAllocator& alloc);
explicit ObExprConcatWs(common::ObIAllocator &alloc);
virtual ~ObExprConcatWs();
virtual int calc_result_typeN(
ObExprResType& type, ObExprResType* types, int64_t param_num, common::ObExprTypeCtx& type_ctx) const override;
virtual int calc_resultN(
common::ObObj& result, const common::ObObj* objs, int64_t param_num, common::ObExprCtx& expr_ctx) const override;
virtual int calc_result_typeN(ObExprResType &type,
ObExprResType *types,
int64_t param_num,
common::ObExprTypeCtx &type_ctx) const;
// connect two strings by separator
static int concat_ws(
const common::ObString obj1, const common::ObString obj2, const int64_t buf_len, char** string_buf, int64_t& pos);
// connect any strings by separator
static int calc(common::ObObj& result, const common::ObString& sep_str, const common::ObObj* objs,
const int64_t param_num, common::ObExprCtx& expr_ctx);
virtual int cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const override;
static int calc_concat_ws_expr(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res);
static int calc(const common::ObString& sep_str, const common::ObIArray<common::ObString>& words,
common::ObIAllocator& alloc, common::ObString& res_str);
static int concat_ws(const common::ObString obj1,
const common::ObString obj2,
const int64_t buf_len,
char **string_buf,
int64_t &pos);
virtual int cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
ObExpr &rt_expr) const override;
static int calc_concat_ws_expr(const ObExpr &expr, ObEvalCtx &ctx,
ObDatum &res);
static int calc(const common::ObString &sep_str, const common::ObIArray<common::ObString> &words,
common::ObIAllocator &alloc, common::ObString &res_str);
private:
// disallow copy
DISALLOW_COPY_AND_ASSIGN(ObExprConcatWs);
};
} // namespace sql
} // namespace oceanbase
}
}
#endif /* SRC_SQL_ENGINE_EXPR_OB_EXPR_CONCAT_WS_H_ */