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[CP] fix bug about timestampdiff and timestampadd

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This commit is contained in:
obdev
2023-04-13 08:33:02 +00:00
committed by ob-robot
parent 1723a953cc
commit 0442dd622b
3 changed files with 11 additions and 14 deletions
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13
src/sql/engine/expr/ob_expr_timestamp_add.cpp
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@ -46,17 +46,14 @@ inline int ObExprTimeStampAdd::calc_result_type3(ObExprResType &type,
ObExprResType &timestamp,
common::ObExprTypeCtx &type_ctx) const
{
UNUSED(type_ctx);
UNUSED(unit);
UNUSED(interval);
UNUSED(timestamp);
int ret = OB_SUCCESS;
ObCompatibilityMode compat_mode = get_compatibility_mode();
//not timestamp. compatible with mysql.
type.set_varchar();
type.set_length(common::ObAccuracy::MAX_ACCURACY2[compat_mode][common::ObTimestampType].precision_
+ common::ObAccuracy::MAX_ACCURACY2[compat_mode][common::ObTimestampType].scale_ + 1);
//timestamp.set_calc_type(common::ObDateTimeType);
type.set_length(common::ObAccuracy::MAX_ACCURACY2[compat_mode][common::ObDateTimeType].precision_
+ common::ObAccuracy::MAX_ACCURACY2[compat_mode][common::ObDateTimeType].scale_ + 1);
type.set_collation_level(common::CS_LEVEL_IMPLICIT);
//not connection collation. compatible with mysql.
type.set_collation_type(common::ObCharset::get_default_collation(common::ObCharset::get_default_charset()));
@ -216,7 +213,7 @@ int calc_timestampadd_expr(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res_datu
int64_t interval_int = interval_datum->get_int();
int64_t res = 0;
ObTime ot;
ObTimeConvertCtx cvrt_ctx(get_timezone_info(ctx.exec_ctx_.get_my_session()), true);
ObTimeConvertCtx cvrt_ctx(get_timezone_info(ctx.exec_ctx_.get_my_session()), false);
char *buf = NULL;
int64_t buf_len = OB_CAST_TO_VARCHAR_MAX_LENGTH;
int64_t out_len = 0;
@ -233,7 +230,7 @@ int calc_timestampadd_expr(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res_datu
} else if (OB_ISNULL(buf = expr.get_str_res_mem(ctx, buf_len))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("allocate memory failed", K(ret), K(buf_len));
} else if (OB_FAIL(common_datetime_string(ObTimestampType, ObVarcharType,
} else if (OB_FAIL(common_datetime_string(ObDateTimeType, ObVarcharType,
expr.args_[2]->datum_meta_.scale_, false,
res, ctx, buf, buf_len, out_len))) {
LOG_WARN("common_datetime_string failed", K(ret), K(res), K(expr));