drill

14ba6a87 - DRILL-7968: ANALYZE TABLE ... REFRESH METADATA fails with FLOAT4 column. (#2267)

DRILL-7968: ANALYZE TABLE ... REFRESH METADATA fails with FLOAT4 column. (#2267) * DRILL-7968: ANALYZE TABLE ... REFRESH METADATA fails with FLOAT4 column. This commit adds support for java.lang.Float to PojoWriters.java and a test for the problem described in DRILL-7968 to TestMetastoreCommands.java. * Address review comments and fix path to alltypes_optional.parquet in test.