Failure of getting column descriptions for some tables

[yruslan]

Describe the bug

Fetching database metadata for JDBC sources sometimes gets 10s of gigabytes of data from the server.

Until this is fixed, let's disable fetching column descriptions for MS SQL Server.

The driver is: "com.microsoft.sqlserver.jdbc.SQLServerDriver"

Steps to reproduce

    val statement = connection.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY)

    val rs = statement.executeQuery("SELECT CAST(SERVERPROPERTY('EngineEdition') as INT)")

    rs.next()

    println(rs.getLong(1))

Expected behavior

Pramen pipelines should not fail with out of memory exceptions when loading column descriptions.

Root cause

The route cause is the the above query, but the fact that we query the data query to get the resultset to get metadata from. This is fixed by ensuring that the metadata query does not return any actual records.