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muhammadshoaibmuhammadshoaib
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Inital version of AGE Meta
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‎Makefile‎

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@@ -110,6 +110,7 @@ REGRESS = scan \
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name_validation \
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jsonb_operators \
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list_comprehension \
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age_meta \
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drop
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srcdir=`pwd`

‎regress/expected/age_meta.out‎

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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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LOAD 'age';
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SET search_path TO ag_catalog;
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SELECT create_graph('meta_test_graph');
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NOTICE: graph "meta_test_graph" has been created
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create_graph
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--------------
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(1 row)
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SELECT list_graphs();
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list_graphs
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-----------------
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meta_test_graph
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(1 row)
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SELECT list_vertex_labels('meta_test_graph');
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list_vertex_labels
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--------------------
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_ag_label_vertex
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(1 row)
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SELECT count_vertex_labels('meta_test_graph');
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count_vertex_labels
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---------------------
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1
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(1 row)
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SELECT create_vlabel('meta_test_graph','vertex_a');
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NOTICE: VLabel "vertex_a" has been created
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create_vlabel
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---------------
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(1 row)
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SELECT list_vertex_labels('meta_test_graph');
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list_vertex_labels
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--------------------
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_ag_label_vertex
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vertex_a
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(2 rows)
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SELECT count_vertex_labels('meta_test_graph');
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count_vertex_labels
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---------------------
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2
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(1 row)
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SELECT list_edge_labels('meta_test_graph');
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list_edge_labels
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------------------
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_ag_label_edge
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(1 row)
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SELECT count_edge_labels('meta_test_graph');
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count_edge_labels
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-------------------
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1
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(1 row)
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SELECT create_elabel('meta_test_graph','edge_a');
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NOTICE: ELabel "edge_a" has been created
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create_elabel
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---------------
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(1 row)
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SELECT list_edge_labels('meta_test_graph');
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list_edge_labels
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------------------
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_ag_label_edge
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edge_a
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(2 rows)
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SELECT count_edge_labels('meta_test_graph');
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count_edge_labels
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-------------------
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2
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(1 row)
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SELECT drop_graph('meta_test_graph', true);
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NOTICE: drop cascades to 4 other objects
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DETAIL: drop cascades to table meta_test_graph._ag_label_vertex
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drop cascades to table meta_test_graph._ag_label_edge
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drop cascades to table meta_test_graph.vertex_a
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drop cascades to table meta_test_graph.edge_a
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NOTICE: graph "meta_test_graph" has been dropped
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drop_graph
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------------
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(1 row)
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‎regress/sql/age_meta.sql‎

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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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LOAD 'age';
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SET search_path TO ag_catalog;
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SELECT create_graph('meta_test_graph');
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SELECT list_graphs();
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SELECT list_vertex_labels('meta_test_graph');
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SELECT count_vertex_labels('meta_test_graph');
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SELECT create_vlabel('meta_test_graph','vertex_a');
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SELECT list_vertex_labels('meta_test_graph');
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SELECT count_vertex_labels('meta_test_graph');
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SELECT list_edge_labels('meta_test_graph');
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SELECT count_edge_labels('meta_test_graph');
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SELECT create_elabel('meta_test_graph','edge_a');
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SELECT list_edge_labels('meta_test_graph');
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SELECT count_edge_labels('meta_test_graph');
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SELECT drop_graph('meta_test_graph', true);

‎sql/age_meta.sql‎

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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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DROP FUNCTION IF EXISTS ag_catalog.list_graphs;
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CREATE OR REPLACE FUNCTION ag_catalog.list_graphs()
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RETURNS TABLE (graph_name name)
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LANGUAGE plpgsql
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IMMUTABLE
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RETURNS NULL ON NULL INPUT
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AS $$
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BEGIN
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RETURN QUERY EXECUTE 'SELECT name FROM ag_catalog.ag_graph';
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END $$;
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DROP FUNCTION IF EXISTS ag_catalog.list_vertex_labels;
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CREATE OR REPLACE FUNCTION ag_catalog.list_vertex_labels(graph_name name)
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RETURNS TABLE (label_name name)
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LANGUAGE plpgsql
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IMMUTABLE
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RETURNS NULL ON NULL INPUT
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AS $$
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DECLARE
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stmt TEXT;
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BEGIN
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stmt = FORMAT('SELECT ag_catalog.ag_label.name FROM ag_catalog.ag_label ' ||
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'INNER JOIN ag_catalog.ag_graph ' ||
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'ON ag_catalog.ag_label.graph = ag_catalog.ag_graph.graphid ' ||
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'WHERE kind = ''v'' AND ag_catalog.ag_graph.name = %L', graph_name);
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RETURN QUERY EXECUTE stmt;
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END $$;
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DROP FUNCTION IF EXISTS ag_catalog.count_vertex_labels;
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CREATE OR REPLACE FUNCTION ag_catalog.count_vertex_labels(graph_name name)
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RETURNS TABLE (total_vertex_labels bigint)
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LANGUAGE plpgsql
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IMMUTABLE
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RETURNS NULL ON NULL INPUT
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AS $$
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DECLARE
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stmt TEXT;
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BEGIN
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stmt = FORMAT('SELECT COUNT(ag_catalog.ag_label.name) AS total_vertex_labels ' ||
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'FROM ag_catalog.ag_label INNER JOIN ag_catalog.ag_graph ' ||
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'ON ag_catalog.ag_label.graph = ag_catalog.ag_graph.graphid ' ||
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'WHERE kind = ''v'' AND ag_catalog.ag_graph.name = %L', graph_name);
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RETURN QUERY EXECUTE stmt;
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END $$;
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DROP FUNCTION IF EXISTS ag_catalog.list_edge_labels;
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CREATE OR REPLACE FUNCTION ag_catalog.list_edge_labels(graph_name name)
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RETURNS TABLE (label_name name)
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LANGUAGE plpgsql
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IMMUTABLE
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RETURNS NULL ON NULL INPUT
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AS $$
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DECLARE
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stmt TEXT;
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BEGIN
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stmt = FORMAT('SELECT ag_catalog.ag_label.name FROM ag_catalog.ag_label ' ||
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'INNER JOIN ag_catalog.ag_graph ' ||
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'ON ag_catalog.ag_label.graph = ag_catalog.ag_graph.graphid ' ||
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'WHERE kind = ''e'' AND ag_catalog.ag_graph.name = %L', graph_name);
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RETURN QUERY EXECUTE stmt;
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END $$;
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DROP FUNCTION IF EXISTS ag_catalog.count_edge_labels;
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CREATE OR REPLACE FUNCTION ag_catalog.count_edge_labels(graph_name name)
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RETURNS TABLE (total_edges_labels bigint)
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LANGUAGE plpgsql
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IMMUTABLE
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RETURNS NULL ON NULL INPUT
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AS $$
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DECLARE
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stmt TEXT;
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BEGIN
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stmt = FORMAT('SELECT COUNT(ag_catalog.ag_label.name) AS total_edges_labels ' ||
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'FROM ag_catalog.ag_label INNER JOIN ag_catalog.ag_graph ' ||
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'ON ag_catalog.ag_label.graph = ag_catalog.ag_graph.graphid ' ||
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'WHERE kind = ''e'' AND ag_catalog.ag_graph.name = %L', graph_name);
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RETURN QUERY EXECUTE stmt;
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END $$;
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CREATE FUNCTION mul(numeric, numeric) RETURNS numeric
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AS 'select $1*$2;'
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LANGUAGE SQL
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IMMUTABLE
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RETURNS NULL ON NULL INPUT;

‎sql/sql_files‎

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@@ -14,3 +14,4 @@ age_string
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age_trig
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age_aggregate
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agtype_typecast
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age_meta

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