Support longs (#52)

Author: ryannedolan

hoptimator-catalog/src/main/java/com/linkedin/hoptimator/catalog/AvroConverter.java

@@ -32,6 +32,8 @@ public static Schema avro(String namespace, String name, RelDataType dataType) {
       switch (dataType.getSqlTypeName()) {
       case INTEGER:
         return createAvroTypeWithNullability(Schema.Type.INT, dataType.isNullable());
+      case BIGINT:
+        return createAvroTypeWithNullability(Schema.Type.LONG, dataType.isNullable());
       case VARCHAR:
         return createAvroTypeWithNullability(Schema.Type.STRING, dataType.isNullable());
       case FLOAT:
@@ -72,9 +74,10 @@ public static RelDataType rel(Schema schema, RelDataTypeFactory typeFactory) {
         .filter(x -> x.getValue().getSqlTypeName() != unknown.getSqlTypeName())
         .collect(Collectors.toList()));
     case INT:
-    case LONG:
       // schema.isNullable() should be false for basic types iiuc
       return createRelTypeWithNullability(typeFactory, SqlTypeName.INTEGER, schema.isNullable());
+    case LONG:
+      return createRelTypeWithNullability(typeFactory, SqlTypeName.BIGINT, schema.isNullable());
     case ENUM:
     case STRING:
       return createRelTypeWithNullability(typeFactory, SqlTypeName.VARCHAR, schema.isNullable());

hoptimator-catalog/src/main/java/com/linkedin/hoptimator/catalog/builtin/DatagenSchemaFactory.java

@@ -27,7 +27,8 @@ public Schema create(SchemaPlus parentSchema, String name, Map<String, Object> o
     RelDataTypeFactory typeFactory = new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
     Map<String, HopTable> datagenTables = new HashMap<>();
     datagenTables.put("PERSON", new HopTable("DATAGEN", "PERSON", (new RelDataTypeFactory.Builder(typeFactory))
-      .add("NAME", SqlTypeName.VARCHAR).add("AGE", SqlTypeName.INTEGER).build(), ConfigProvider.empty()
+      .add("NAME", SqlTypeName.VARCHAR).add("AGE", SqlTypeName.INTEGER)
+      .add("EMPID", SqlTypeName.BIGINT).build(), ConfigProvider.empty()
       .with("connector", "datagen").with("number-of-rows", "10").with("fields.AGE.min", "0")
       .with("fields.AGE.max", "100").with("fields.NAME.length", "5").config("PERSON")));
     datagenTables.put("COMPANY", new HopTable("DATAGEN", "COMPANY", (new RelDataTypeFactory.Builder(typeFactory))