[JDBC] ParameterMetadata column type inference

[chernser]

Description

There are several method that are used to get information about parameter types. We may not know parameters upfront but should do all best to return a correct and not confusing results.

Here is list of these methods:

• getParameterCount()
• isSigned(int param)
• getPrecision(int param)
• isNullable(int param)
• getScale(int param)
• getParameterType(int param)
• getParameterTypeName(int param)
• getParameterClassName(int param)
• getParameterMode(int param)