Solr JDBC doesn't implement columns' metadata

This is the error I get (from Squirrel SQL) while trying to get the objects -meaning both tables and columns metadata

2016-12-12 13:47:48,241 [Thread-2] ERROR net.sourceforge.squirrel_sql.client.session.schemainfo.SchemaInfo - Error occurred creating data types collection
java.lang.UnsupportedOperationException
at org.apache.solr.client.solrj.io.sql.DatabaseMetaDataImpl.getTypeInfo(DatabaseMetaDataImpl.java:773)
at net.sourceforge.squirrel_sql.fw.sql.SQLDatabaseMetaData.getDataTypesSimpleNames(SQLDatabaseMetaData.java:1978)
at net.sourceforge.squirrel_sql.client.session.schemainfo.SchemaInfo.loadDataTypes(SchemaInfo.java:900)
at net.sourceforge.squirrel_sql.client.session.schemainfo.SchemaInfo.privateLoadAll(SchemaInfo.java:315)
at net.sourceforge.squirrel_sql.client.session.schemainfo.SchemaInfo.reloadAll(SchemaInfo.java:208)
at net.sourceforge.squirrel_sql.client.session.schemainfo.SchemaInfo.reloadAll(SchemaInfo.java:198)
at net.sourceforge.squirrel_sql.client.session.mainpanel.objecttree.ObjectTree$3.run(ObjectTree.java:315)
at net.sourceforge.squirrel_sql.fw.util.TaskExecuter.run(TaskExecuter.java:82)
at java.lang.Thread.run(Thread.java:745)