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[FEAT MERGE] information_schema enhence

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This commit is contained in:
obdev
2023-01-13 03:42:07 +00:00
committed by OB-robot
parent 9ce9e1a357
commit ec56715ea5
98 changed files with 4513 additions and 3156 deletions
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18
src/sql/engine/expr/ob_expr_cast.cpp
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@ -525,11 +525,27 @@ int ObExprCast::get_cast_type(const ObExprResType param_type2,
ParseNode parse_node;
parse_node.value_ = param.get_int();
ObObjType obj_type = static_cast<ObObjType>(parse_node.int16_values_[OB_NODE_CAST_TYPE_IDX]);
bool is_explicit_cast = CM_IS_EXPLICIT_CAST(cast_mode);
dst_type.set_collation_type(static_cast<ObCollationType>(parse_node.int16_values_[OB_NODE_CAST_COLL_IDX]));
dst_type.set_type(obj_type);
if (ob_is_string_type(obj_type) || ob_is_lob_locator(obj_type)) {
int64_t maxblen = 4;
if (ob_is_lob_locator(obj_type)) {
// cast(x as char(10)) or cast(x as binary(10))
dst_type.set_full_length(parse_node.int32_values_[OB_NODE_CAST_C_LEN_IDX], param_type2.get_accuracy().get_length_semantics());
} else if (ob_is_string_type(obj_type)) {
dst_type.set_full_length(parse_node.int32_values_[OB_NODE_CAST_C_LEN_IDX], param_type2.get_accuracy().get_length_semantics());
if (lib::is_mysql_mode() && is_explicit_cast && !dst_type.is_binary() && !dst_type.is_varbinary()) {
if (dst_type.get_length() > OB_MAX_CAST_CHAR_VARCHAR_LENGTH && dst_type.get_length() <= OB_MAX_CAST_CHAR_TEXT_LENGTH) {
dst_type.set_type(ObTextType);
dst_type.set_length(OB_MAX_CAST_CHAR_TEXT_LENGTH);
} else if (dst_type.get_length() > OB_MAX_CAST_CHAR_TEXT_LENGTH && dst_type.get_length() <= OB_MAX_CAST_CHAR_MEDIUMTEXT_LENGTH) {
dst_type.set_type(ObMediumTextType);
dst_type.set_length(OB_MAX_CAST_CHAR_MEDIUMTEXT_LENGTH);
} else if (dst_type.get_length() > OB_MAX_CAST_CHAR_MEDIUMTEXT_LENGTH) {
dst_type.set_type(ObLongTextType);
dst_type.set_length(OB_MAX_LONGTEXT_LENGTH / maxblen);
}
}
} else if (ob_is_raw(obj_type)) {
dst_type.set_length(parse_node.int32_values_[OB_NODE_CAST_C_LEN_IDX]);
} else if (ob_is_extend(obj_type)) {