Issue Number: 343572c
| Issue | When obtaining meta information of user bind parameters used in Operator and Function through JDBC, it was only output as UNKNOWN. |
| Cause | Methods like getParameterType are executed with Msg Request Type as Prepare, causing the bind meta to be output as UNKNOWN. In some databases, when the bind is UNKNOWN, the meta is estimated and applied. |
| Solutions | A feature to estimate the meta of user bind parameters was implemented. |
| Note | A template for the estimation logic was created, and it was initially implemented for some functions. (Operator: comparison operations, IN / Function: NVL, Case, TO conversion functions) |