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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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72
src/sql/engine/expr/ob_expr_time_diff.h
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@ -17,42 +17,54 @@
#include "share/object/ob_obj_cast.h"
#include "sql/engine/expr/ob_expr_operator.h"
namespace oceanbase {
namespace sql {
class ObExprTimeDiff : public ObFuncExprOperator {
namespace oceanbase
{
namespace sql
{
class ObExprTimeDiff : public ObFuncExprOperator
{
public:
explicit ObExprTimeDiff(common::ObIAllocator& alloc);
explicit ObExprTimeDiff(common::ObIAllocator &alloc);
virtual ~ObExprTimeDiff();
virtual int calc_result_type2(
ObExprResType& type, ObExprResType& left, ObExprResType& right, common::ObExprTypeCtx& type_ctx) const;
static int calc(
common::ObObj& result, const common::ObObj& left, const common::ObObj& right, common::ObCastCtx& cast_ctx);
virtual int calc_result2(
common::ObObj& result, const common::ObObj& left, const common::ObObj& right, common::ObExprCtx& expr_ctx) const;
virtual int cg_expr(ObExprCGCtx& op_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const override;
static int calc_timediff(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
virtual int calc_result_type2(ObExprResType &type,
ObExprResType &left,
ObExprResType &right,
common::ObExprTypeCtx &type_ctx) const;
static int calc(common::ObObj &result, const common::ObObj &left,
const common::ObObj &right, common::ObCastCtx &cast_ctx);
virtual int cg_expr(ObExprCGCtx &op_cg_ctx,
const ObRawExpr &raw_expr,
ObExpr &rt_expr) const override;
static int calc_timediff(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum);
private:
static int get_diff_value(
const common::ObObj& obj1, const common::ObObj& obj2, const common::ObTimeZoneInfo* tz_info, int64_t& diff);
static int get_diff_value_with_ob_time(
common::ObTime& ot1, common::ObTime& ot2, const common::ObTimeZoneInfo* tz_info, int64_t& diff);
static int get_diff_value(const common::ObObj &obj1,
const common::ObObj &obj2,
const common::ObTimeZoneInfo *tz_info,
int64_t &diff);
static int get_diff_value_with_ob_time(common::ObTime &ot1,
common::ObTime &ot2,
const common::ObTimeZoneInfo *tz_info,
int64_t &diff);
// disallow copy
DISALLOW_COPY_AND_ASSIGN(ObExprTimeDiff);
};
inline int ObExprTimeDiff::calc_result_type2(
ObExprResType& type, ObExprResType& left, ObExprResType& right, common::ObExprTypeCtx& type_ctx) const
inline int ObExprTimeDiff::calc_result_type2(ObExprResType &type,
ObExprResType &left,
ObExprResType &right,
common::ObExprTypeCtx &type_ctx) const
{
// TODO actually ,the source of the objs will bring up different results
// if obj is constant and of string type.
// e.g. select timediff("12:34:56.123", "13:33:22.34567");
// then the scale of result type will be 5 (the larger one)
// if obj comes from a column of a table , then the scale of result type will be 6
// no matter what the scale of objs is.
// e.g. select timediff(tableA.left,tableB.right) from tableA,tableB
// when left and right are both STRING type(varchar)
// the scale of result type may be 6, always.
//TODO<xiaoni> actually ,the source of the objs will bring up different results
//if obj is constant and of string type.
//e.g. select timediff("12:34:56.123", "13:33:22.34567");
//then the scale of result type will be 5 (the larger one)
//if obj comes from a column of a table , then the scale of result type will be 6
//no matter what the scale of objs is.
//e.g. select timediff(tableA.left,tableB.right) from tableA,tableB
//when left and right are both STRING type(varchar)
//the scale of result type may be 6, always.
int ret = common::OB_SUCCESS;
common::ObScale scale = static_cast<common::ObScale>(common::max(left.get_scale(), right.get_scale()));
if (scale > common::MAX_SCALE_FOR_TEMPORAL) {
@ -74,6 +86,6 @@ inline int ObExprTimeDiff::calc_result_type2(
UNUSED(type_ctx);
return ret;
}
} // namespace sql
} // namespace oceanbase
#endif //_OCEANBASE_SQL_OB_EXPR_TIME_DIFF_H_
} //sql
} //oceanbase
#endif //_OCEANBASE_SQL_OB_EXPR_TIME_DIFF_H_