Update database_db_versions data source

* Adds `is_latest_for_major_version` field
* Refresh Database related documentation

Author: ccushing

CHANGELOG.md

@@ -2,15 +2,15 @@
 
 ### Added
 - Support for importing tag. Note tag uses custom Id(import only) format (tagNamespaces/{tagNamespaceId}/tags/{tagName}) to support import.
+- Support for tagging in `oci_dns_zone`
+- New attribute `nameservers` is added to `oci_dns_zone`
+- Support for in-transit encryption for paravirtualized boot and data attachment
+- Identify latest database version with `oci_databse_db_versions` data source using `is_latest_for_major_version` property
 
 ## 3.10.0 (December 11, 2018)
 
 ### Added
 - Support for attaching Route Table to Subnet. Issue [#270](https://github.com/terraform-providers/terraform-provider-oci/issues/270)
-- Support for tagging in `oci_dns_zone`
-- New attribute `nameservers` is added to `oci_dns_zone`
-- Support for in-transit encryption for paravirtualized boot and data attachment
-
 
 ## 3.9.0 (December 04, 2018)
 

oci/database_db_version_test.go

@@ -59,6 +59,7 @@ func TestDatabaseDbVersionResource_basic(t *testing.T) {
 
 					resource.TestCheckResourceAttr(datasourceName+"_by_db_system_shape", "db_system_shape", "BM.DenseIO1.36"),
 					resource.TestCheckResourceAttrSet(datasourceName+"_by_db_system_shape", "db_versions.#"),
+					resource.TestCheckResourceAttrSet(datasourceName+"_by_db_system_shape", "db_versions.0.is_latest_for_major_version"),
 					resource.TestCheckResourceAttrSet(datasourceName+"_by_db_system_shape", "db_versions.0.supports_pdb"),
 					resource.TestCheckResourceAttrSet(datasourceName+"_by_db_system_shape", "db_versions.0.version"),
 				),

oci/database_db_versions_data_source.go

@@ -36,6 +36,10 @@ func DbVersionsDataSource() *schema.Resource {
 						// Optional
 
 						// Computed
+						"is_latest_for_major_version": {
+							Type:     schema.TypeBool,
+							Computed: true,
+						},
 						"supports_pdb": {
 							Type:     schema.TypeBool,
 							Computed: true,
@@ -141,6 +145,10 @@ func (s *DbVersionsDataSourceCrud) SetData() error {
 	for _, r := range s.Res.Items {
 		dbVersion := map[string]interface{}{}
 
+		if r.IsLatestForMajorVersion != nil {
+			dbVersion["is_latest_for_major_version"] = *r.IsLatestForMajorVersion
+		}
+
 		if r.SupportsPdb != nil {
 			dbVersion["supports_pdb"] = *r.SupportsPdb
 		}

website/docs/d/database_db_versions.html.markdown

@@ -43,6 +43,7 @@ The following attributes are exported:
 
 The following attributes are exported:
 
+* `is_latest_for_major_version` - True if this version of the Oracle Database software is the latest version for a release.
 * `supports_pdb` - True if this version of the Oracle Database software supports pluggable databases.
 * `version` - A valid Oracle Database version.