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fix rewrite bug: replace column with const value

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This commit is contained in:
wjhh2008
2022-11-25 11:37:50 +00:00
committed by wangzelin.wzl
parent fe0de4b0d5
commit f34a588a9a
4 changed files with 19 additions and 28 deletions
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4
src/sql/engine/expr/ob_expr_cast.cpp
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@ -294,6 +294,7 @@ int ObExprCast::calc_result_type2(ObExprResType &type,
ObRawExpr *cast_raw_expr = NULL;
const sql::ObSQLSessionInfo *session = NULL;
bool is_explicit_cast = false;
bool is_to_column_cs_level = false;
if (OB_ISNULL(session = type_ctx.get_session()) ||
OB_ISNULL(cast_raw_expr = get_raw_expr())) {
ret = OB_ERR_UNEXPECTED;
@ -310,6 +311,7 @@ int ObExprCast::calc_result_type2(ObExprResType &type,
"dst", ob_obj_type_str(dst_type.get_type()));
} else if (FALSE_IT(is_explicit_cast = CM_IS_EXPLICIT_CAST(cast_raw_expr->get_extra()))) {
// check cast supported in cast_map but not support here.
} else if (FALSE_IT(is_to_column_cs_level = CM_IS_TO_COLUMN_CS_LEVEL(cast_raw_expr->get_extra()))) {
} else if (!check_cast_allowed(type1.get_type(), type1.get_collation_type(),
dst_type.get_type(), dst_type.get_collation_type(),
is_explicit_cast)) {
@ -355,7 +357,7 @@ int ObExprCast::calc_result_type2(ObExprResType &type,
type1.set_calc_type(get_calc_cast_type(type1.get_type(), dst_type.get_type()));
int32_t length = 0;
if (ob_is_string_or_lob_type(dst_type.get_type()) || ob_is_raw(dst_type.get_type()) || ob_is_json(dst_type.get_type())) {
type.set_collation_level(is_explicit_cast
type.set_collation_level((is_explicit_cast || is_to_column_cs_level)
? CS_LEVEL_IMPLICIT
: type1.get_collation_level());
int32_t len = dst_type.get_length();