Support for hints in create dataset statement.
ASTERIX allows user to give additional information in form of hints.
These hints can come handy in scenarios such as determining other parameters like the size of bloom filter to hold data.
To begin with, the onyl hint supported by Asterix is the 'CARDINALITY' hint.
CARDINALITY gives the expected number of tuples in the dataset.
An example create dataset statement that provides hints is given below:-
create dataset X(TypeY)
partitioned by key id
hints (CARDINALITY=2500);
Please note that hints are case-insensitive.
Test Cases:-
Positive
asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_1.aql
asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_2.aql
asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_3.aql
asterix-app/src/test/resources/metadata/queries/basic/issue_251_dataset_hint_4.aql
Negative
asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_1.aql
asterix-app/src/test/resources/metadata/queries/exception/issue_251_dataset_hint_error_2.aql
git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_stabilization_issue_251@1105 eaa15691-b419-025a-1212-ee371bd00084
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta09.adm b/asterix-app/src/test/resources/metadata/results/basic/meta09.adm
index b85737d..9bcb2a4 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/meta09.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta09.adm
@@ -1 +1 @@
-{ "DataverseName": "test", "DatasetName": "t1", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Sat Nov 24 14:28:44 PST 2012" }
+{ "DataverseName": "test", "DatasetName": "t1", "DataTypeName": "testtype", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{ }}, "Timestamp": "Tue Jan 29 18:55:25 PST 2013" }