Bump version client 0.11.0
This commit is contained in:
Carla Iriberri
7
NEWS.md
7
NEWS.md
@@ -1,3 +1,10 @@
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September 1, 2016
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===========
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* Released version 0.11.0 of the client
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* Include DS table functions to create and populate a table with the GetMeasure function in observatory
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* Released version 0.15.1 of the server
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* Rename DS table functions
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August 29, 2016
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===========
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* Released version 0.15.0 of the server
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@@ -13,8 +13,8 @@ OLD_VERSIONS = $(wildcard old_versions/*.sql)
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# @see http://www.postgresql.org/docs/current/static/extend-pgxs.html
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DATA = $(NEW_EXTENSION_ARTIFACT) \
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$(OLD_VERSIONS) \
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cdb_dataservices_client--0.10.1--0.10.2.sql \
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cdb_dataservices_client--0.10.2--0.10.1.sql
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cdb_dataservices_client--0.10.2--0.11.0.sql \
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cdb_dataservices_client--0.11.0--0.10.2.sql
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REGRESS = $(notdir $(basename $(wildcard test/sql/*test.sql)))
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289
client/cdb_dataservices_client--0.10.2--0.11.0.sql
Normal file
289
client/cdb_dataservices_client--0.10.2--0.11.0.sql
Normal file
@@ -0,0 +1,289 @@
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--DO NOT MODIFY THIS FILE, IT IS GENERATED AUTOMATICALLY FROM SOURCES
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-- Complain if script is sourced in psql, rather than via CREATE EXTENSION
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\echo Use "ALTER EXTENSION cdb_dataservices_client UPDATE TO '0.11.0'" to load this file. \quit
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DROP FUNCTION IF EXISTS cdb_dataservices_client._OBS_GetTable(text, text, text, json);
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DROP FUNCTION IF EXISTS cdb_dataservices_client._OBS_AugmentTable(text, text, json);
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DROP FUNCTION IF EXISTS cdb_dataservices_client.__OBS_AugmentTable(text, text, text, text, text, text, text, json);
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DROP FUNCTION IF EXISTS cdb_dataservices_client.__OBS_GetTable(text, text, text, text, text, text, text, text, json);
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DROP FUNCTION IF EXISTS cdb_dataservices_client._OBS_ConnectUserTable(text, text, text, text, text, text);
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DROP FUNCTION IF EXISTS cdb_dataservices_client._OBS_GetReturnMetadata(text, text, text, json);
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DROP FUNCTION IF EXISTS cdb_dataservices_client._OBS_FetchJoinFdwTableData(text, text, text, text, text, json);
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DROP FUNCTION IF EXISTS cdb_dataservices_client._OBS_DisconnectUserTable(text, text, text, text, text);
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CREATE OR REPLACE FUNCTION cdb_dataservices_client._DST_PrepareTableOBS_GetMeasure(
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output_table_name text,
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params json
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) RETURNS boolean AS $$
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DECLARE
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username text;
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user_db_role text;
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orgname text;
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user_schema text;
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result boolean;
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BEGIN
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IF session_user = 'publicuser' OR session_user ~ 'cartodb_publicuser_*' THEN
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RAISE EXCEPTION 'The api_key must be provided';
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END IF;
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SELECT session_user INTO user_db_role;
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SELECT u, o INTO username, orgname FROM cdb_dataservices_client._cdb_entity_config() AS (u text, o text);
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-- JSON value stored "" is taken as literal
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IF username IS NULL OR username = '' OR username = '""' THEN
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RAISE EXCEPTION 'Username is a mandatory argument';
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END IF;
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IF orgname IS NULL OR orgname = '' OR orgname = '""' THEN
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user_schema := 'public';
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ELSE
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user_schema := username;
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END IF;
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SELECT cdb_dataservices_client.__DST_PrepareTableOBS_GetMeasure(
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username,
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orgname,
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user_db_role,
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user_schema,
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output_table_name,
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params
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) INTO result;
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RETURN result;
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END;
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$$ LANGUAGE 'plpgsql' SECURITY DEFINER;
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CREATE OR REPLACE FUNCTION cdb_dataservices_client._DST_PopulateTableOBS_GetMeasure(
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table_name text,
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output_table_name text,
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params json
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) RETURNS boolean AS $$
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DECLARE
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username text;
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user_db_role text;
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orgname text;
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dbname text;
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user_schema text;
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result boolean;
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BEGIN
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IF session_user = 'publicuser' OR session_user ~ 'cartodb_publicuser_*' THEN
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RAISE EXCEPTION 'The api_key must be provided';
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END IF;
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SELECT session_user INTO user_db_role;
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SELECT u, o INTO username, orgname FROM cdb_dataservices_client._cdb_entity_config() AS (u text, o text);
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-- JSON value stored "" is taken as literal
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IF username IS NULL OR username = '' OR username = '""' THEN
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RAISE EXCEPTION 'Username is a mandatory argument';
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END IF;
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IF orgname IS NULL OR orgname = '' OR orgname = '""' THEN
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user_schema := 'public';
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ELSE
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user_schema := username;
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END IF;
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SELECT current_database() INTO dbname;
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SELECT cdb_dataservices_client.__DST_PopulateTableOBS_GetMeasure(
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username,
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orgname,
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user_db_role,
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user_schema,
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dbname,
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table_name,
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output_table_name,
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params
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) INTO result;
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RETURN result;
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END;
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$$ LANGUAGE 'plpgsql' SECURITY DEFINER;
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CREATE OR REPLACE FUNCTION cdb_dataservices_client.__DST_PrepareTableOBS_GetMeasure(
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username text,
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orgname text,
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user_db_role text,
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user_schema text,
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output_table_name text,
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params json
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) RETURNS boolean AS $$
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function_name = 'GetMeasure'
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# Obtain return types for augmentation procedure
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ds_return_metadata = plpy.execute("SELECT colnames, coltypes "
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"FROM cdb_dataservices_client._DST_GetReturnMetadata({username}::text, {orgname}::text, {function_name}::text, {params}::json);"
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.format(
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username=plpy.quote_nullable(username),
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orgname=plpy.quote_nullable(orgname),
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function_name=plpy.quote_literal(function_name),
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params=plpy.quote_literal(params)
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)
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)
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if ds_return_metadata[0]["colnames"]:
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colnames_arr = ds_return_metadata[0]["colnames"]
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coltypes_arr = ds_return_metadata[0]["coltypes"]
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else:
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raise Exception('Error retrieving OBS_GetMeasure metadata')
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# Prepare column and type strings required in the SQL queries
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columns_with_types_arr = [colnames_arr[i] + ' ' + coltypes_arr[i] for i in range(0,len(colnames_arr))]
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columns_with_types = ','.join(columns_with_types_arr)
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# Create a new table with the required columns
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plpy.execute('CREATE TABLE "{schema}".{table_name} ( '
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'cartodb_id int, the_geom geometry, {columns_with_types} '
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');'
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.format(schema=user_schema, table_name=output_table_name, columns_with_types=columns_with_types)
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)
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plpy.execute('ALTER TABLE "{schema}".{table_name} OWNER TO "{user}";'
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.format(schema=user_schema, table_name=output_table_name, user=user_db_role)
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)
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return True
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$$ LANGUAGE plpythonu;
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CREATE OR REPLACE FUNCTION cdb_dataservices_client.__DST_PopulateTableOBS_GetMeasure(
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username text,
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orgname text,
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user_db_role text,
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user_schema text,
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dbname text,
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table_name text,
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output_table_name text,
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params json
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) RETURNS boolean AS $$
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function_name = 'GetMeasure'
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# Obtain return types for augmentation procedure
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ds_return_metadata = plpy.execute(
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"SELECT colnames, coltypes "
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"FROM cdb_dataservices_client._DST_GetReturnMetadata({username}::text, {orgname}::text, {function_name}::text, {params}::json);" .format(
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username=plpy.quote_nullable(username),
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orgname=plpy.quote_nullable(orgname),
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function_name=plpy.quote_literal(function_name),
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params=plpy.quote_literal(params)))
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if ds_return_metadata[0]["colnames"]:
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colnames_arr = ds_return_metadata[0]["colnames"]
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coltypes_arr = ds_return_metadata[0]["coltypes"]
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else:
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raise Exception('Error retrieving OBS_GetMeasure metadata')
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# Prepare column and type strings required in the SQL queries
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columns_with_types_arr = [
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colnames_arr[i] +
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' ' +
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coltypes_arr[i] for i in range(
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0,
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len(colnames_arr))]
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columns_with_types = ','.join(columns_with_types_arr)
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aliased_colname_list = ','.join(
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['result.' + name for name in colnames_arr])
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# Instruct the OBS server side to establish a FDW
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# The metadata is obtained as well in order to:
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# - (a) be able to write the query to grab the actual data to be executed in the remote server via pl/proxy,
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# - (b) be able to tell OBS to free resources when done.
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ds_fdw_metadata = plpy.execute(
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"SELECT schemaname, tabname, servername "
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"FROM cdb_dataservices_client._DST_ConnectUserTable({username}::text, {orgname}::text, {user_db_role}::text, "
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"{schema}::text, {dbname}::text, {table_name}::text);" .format(
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username=plpy.quote_nullable(username),
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orgname=plpy.quote_nullable(orgname),
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user_db_role=plpy.quote_literal(user_db_role),
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schema=plpy.quote_literal(user_schema),
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dbname=plpy.quote_literal(dbname),
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table_name=plpy.quote_literal(table_name)))
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if ds_fdw_metadata[0]["schemaname"]:
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server_schema = ds_fdw_metadata[0]["schemaname"]
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server_table_name = ds_fdw_metadata[0]["tabname"]
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server_name = ds_fdw_metadata[0]["servername"]
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else:
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raise Exception('Error connecting dataset via FDW')
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# Create a new table with the required columns
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plpy.execute(
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'INSERT INTO "{schema}".{analysis_table_name} '
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'SELECT ut.cartodb_id, ut.the_geom, {colname_list} '
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'FROM "{schema}".{table_name} ut '
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'LEFT JOIN _DST_FetchJoinFdwTableData({username}::text, {orgname}::text, {server_schema}::text, {server_table_name}::text, '
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'{function_name}::text, {params}::json) '
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'AS result ({columns_with_types}, cartodb_id int) '
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'ON result.cartodb_id = ut.cartodb_id;' .format(
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schema=user_schema,
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analysis_table_name=output_table_name,
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colname_list=aliased_colname_list,
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table_name=table_name,
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username=plpy.quote_nullable(username),
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orgname=plpy.quote_nullable(orgname),
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server_schema=plpy.quote_literal(server_schema),
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server_table_name=plpy.quote_literal(server_table_name),
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function_name=plpy.quote_literal(function_name),
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params=plpy.quote_literal(params),
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columns_with_types=columns_with_types))
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# Wipe user FDW data from the server
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wiped = plpy.execute(
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"SELECT cdb_dataservices_client._DST_DisconnectUserTable({username}::text, {orgname}::text, {server_schema}::text, "
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"{server_table_name}::text, {fdw_server}::text)" .format(
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username=plpy.quote_nullable(username),
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orgname=plpy.quote_nullable(orgname),
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server_schema=plpy.quote_literal(server_schema),
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server_table_name=plpy.quote_literal(server_table_name),
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fdw_server=plpy.quote_literal(server_name)))
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return True
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$$ LANGUAGE plpythonu;
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CREATE OR REPLACE FUNCTION cdb_dataservices_client._DST_ConnectUserTable(
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username text,
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orgname text,
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user_db_role text,
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user_schema text,
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dbname text,
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table_name text
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)RETURNS cdb_dataservices_client.ds_fdw_metadata AS $$
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CONNECT cdb_dataservices_client._server_conn_str();
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TARGET cdb_dataservices_server._DST_ConnectUserTable;
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$$ LANGUAGE plproxy;
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CREATE OR REPLACE FUNCTION cdb_dataservices_client._DST_GetReturnMetadata(
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username text,
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orgname text,
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function_name text,
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params json
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) RETURNS cdb_dataservices_client.ds_return_metadata AS $$
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CONNECT cdb_dataservices_client._server_conn_str();
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TARGET cdb_dataservices_server._DST_GetReturnMetadata;
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$$ LANGUAGE plproxy;
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CREATE OR REPLACE FUNCTION cdb_dataservices_client._DST_FetchJoinFdwTableData(
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username text,
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orgname text,
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table_schema text,
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table_name text,
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function_name text,
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params json
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) RETURNS SETOF record AS $$
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CONNECT cdb_dataservices_client._server_conn_str();
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TARGET cdb_dataservices_server._DST_FetchJoinFdwTableData;
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$$ LANGUAGE plproxy;
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CREATE OR REPLACE FUNCTION cdb_dataservices_client._DST_DisconnectUserTable(
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username text,
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orgname text,
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table_schema text,
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table_name text,
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server_name text
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) RETURNS boolean AS $$
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CONNECT cdb_dataservices_client._server_conn_str();
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TARGET cdb_dataservices_server._DST_DisconnectUserTable;
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$$ LANGUAGE plproxy;
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GRANT EXECUTE ON FUNCTION cdb_dataservices_client._DST_PrepareTableOBS_GetMeasure(output_table_name text, params json) TO publicuser;
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GRANT EXECUTE ON FUNCTION cdb_dataservices_client._DST_PopulateTableOBS_GetMeasure(table_name text, output_table_name text, params json) TO publicuser;
|
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|
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281
client/cdb_dataservices_client--0.11.0--0.10.2.sql
Normal file
281
client/cdb_dataservices_client--0.11.0--0.10.2.sql
Normal file
@@ -0,0 +1,281 @@
|
||||
--DO NOT MODIFY THIS FILE, IT IS GENERATED AUTOMATICALLY FROM SOURCES
|
||||
-- Complain if script is sourced in psql, rather than via CREATE EXTENSION
|
||||
\echo Use "ALTER EXTENSION cdb_dataservices_client UPDATE TO '0.10.2'" to load this file. \quit
|
||||
|
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DROP FUNCTION IF EXISTS cdb_dataservices_client._DST_PrepareTableOBS_GetMeasure(text, json);
|
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DROP FUNCTION IF EXISTS cdb_dataservices_client._DST_PopulateTableOBS_GetMeasure(text, text, json);
|
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DROP FUNCTION IF EXISTS cdb_dataservices_client.__DST_PrepareTableOBS_GetMeasure(text, text, text, text, text, json);
|
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DROP FUNCTION IF EXISTS cdb_dataservices_client.__DST_PopulateTableOBS_GetMeasure(text, text, text, text, text, text, text, json);
|
||||
DROP FUNCTION IF EXISTS cdb_dataservices_client._DST_ConnectUserTable(text, text, text, text, text, text);
|
||||
DROP FUNCTION IF EXISTS cdb_dataservices_client._DST_GetReturnMetadata(text, text, text, json);
|
||||
DROP FUNCTION IF EXISTS cdb_dataservices_client._DST_FetchJoinFdwTableData(text, text, text, text, text, json);
|
||||
DROP FUNCTION IF EXISTS cdb_dataservices_client._DST_DisconnectUserTable(text, text, text, text, text);
|
||||
|
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CREATE OR REPLACE FUNCTION cdb_dataservices_client._OBS_GetTable(table_name text, output_table_name text, function_name text, params json)
|
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RETURNS boolean AS $$
|
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DECLARE
|
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username text;
|
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user_db_role text;
|
||||
orgname text;
|
||||
dbname text;
|
||||
user_schema text;
|
||||
result boolean;
|
||||
BEGIN
|
||||
IF session_user = 'publicuser' OR session_user ~ 'cartodb_publicuser_*' THEN
|
||||
RAISE EXCEPTION 'The api_key must be provided';
|
||||
END IF;
|
||||
|
||||
SELECT session_user INTO user_db_role;
|
||||
|
||||
SELECT u, o INTO username, orgname FROM cdb_dataservices_client._cdb_entity_config() AS (u text, o text);
|
||||
-- JSON value stored "" is taken as literal
|
||||
IF username IS NULL OR username = '' OR username = '""' THEN
|
||||
RAISE EXCEPTION 'Username is a mandatory argument';
|
||||
END IF;
|
||||
|
||||
IF orgname IS NULL OR orgname = '' OR orgname = '""' THEN
|
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user_schema := 'public';
|
||||
ELSE
|
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user_schema := username;
|
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END IF;
|
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|
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SELECT current_database() INTO dbname;
|
||||
|
||||
SELECT cdb_dataservices_client.__OBS_GetTable(username, orgname, user_db_role, user_schema, dbname, table_name, output_table_name, function_name, params) INTO result;
|
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|
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RETURN result;
|
||||
END;
|
||||
$$ LANGUAGE 'plpgsql' SECURITY DEFINER;
|
||||
|
||||
|
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CREATE OR REPLACE FUNCTION cdb_dataservices_client._OBS_AugmentTable(table_name text, function_name text, params json)
|
||||
RETURNS boolean AS $$
|
||||
DECLARE
|
||||
username text;
|
||||
user_db_role text;
|
||||
orgname text;
|
||||
dbname text;
|
||||
user_schema text;
|
||||
result boolean;
|
||||
BEGIN
|
||||
IF session_user = 'publicuser' OR session_user ~ 'cartodb_publicuser_*' THEN
|
||||
RAISE EXCEPTION 'The api_key must be provided';
|
||||
END IF;
|
||||
|
||||
SELECT session_user INTO user_db_role;
|
||||
|
||||
SELECT u, o INTO username, orgname FROM cdb_dataservices_client._cdb_entity_config() AS (u text, o text);
|
||||
-- JSON value stored "" is taken as literal
|
||||
IF username IS NULL OR username = '' OR username = '""' THEN
|
||||
RAISE EXCEPTION 'Username is a mandatory argument';
|
||||
END IF;
|
||||
|
||||
IF orgname IS NULL OR orgname = '' OR orgname = '""' THEN
|
||||
user_schema := 'public';
|
||||
ELSE
|
||||
user_schema := username;
|
||||
END IF;
|
||||
|
||||
SELECT current_database() INTO dbname;
|
||||
|
||||
SELECT cdb_dataservices_client.__OBS_AugmentTable(username, orgname, user_db_role, user_schema, dbname, table_name, function_name, params) INTO result;
|
||||
|
||||
RETURN result;
|
||||
END;
|
||||
$$ LANGUAGE 'plpgsql' SECURITY DEFINER;
|
||||
|
||||
CREATE OR REPLACE FUNCTION cdb_dataservices_client.__OBS_AugmentTable(username text, orgname text, user_db_role text, user_schema text, dbname text, table_name text, function_name text, params json)
|
||||
RETURNS boolean AS $$
|
||||
from time import strftime
|
||||
try:
|
||||
server_table_name = None
|
||||
temporary_table_name = 'ds_tmp_' + str(strftime("%s")) + table_name
|
||||
|
||||
# Obtain return types for augmentation procedure
|
||||
ds_return_metadata = plpy.execute("SELECT colnames, coltypes "
|
||||
"FROM cdb_dataservices_client._OBS_GetReturnMetadata({username}::text, {orgname}::text, {function_name}::text, {params}::json);"
|
||||
.format(username=plpy.quote_nullable(username), orgname=plpy.quote_nullable(orgname), function_name=plpy.quote_literal(function_name), params=plpy.quote_literal(params))
|
||||
)
|
||||
|
||||
colnames_arr = ds_return_metadata[0]["colnames"]
|
||||
coltypes_arr = ds_return_metadata[0]["coltypes"]
|
||||
|
||||
# Prepare column and type strings required in the SQL queries
|
||||
colnames = ','.join(colnames_arr)
|
||||
columns_with_types_arr = [colnames_arr[i] + ' ' + coltypes_arr[i] for i in range(0,len(colnames_arr))]
|
||||
columns_with_types = ','.join(columns_with_types_arr)
|
||||
|
||||
|
||||
# Instruct the OBS server side to establish a FDW
|
||||
# The metadata is obtained as well in order to:
|
||||
# - (a) be able to write the query to grab the actual data to be executed in the remote server via pl/proxy,
|
||||
# - (b) be able to tell OBS to free resources when done.
|
||||
ds_fdw_metadata = plpy.execute("SELECT schemaname, tabname, servername "
|
||||
"FROM cdb_dataservices_client._OBS_ConnectUserTable({username}::text, {orgname}::text, {user_db_role}::text, {user_schema}::text, {dbname}::text, {table_name}::text);"
|
||||
.format(username=plpy.quote_nullable(username), orgname=plpy.quote_nullable(orgname), user_db_role=plpy.quote_literal(user_db_role), user_schema=plpy.quote_literal(user_schema), dbname=plpy.quote_literal(dbname), table_name=plpy.quote_literal(table_name))
|
||||
)
|
||||
|
||||
server_schema = ds_fdw_metadata[0]["schemaname"]
|
||||
server_table_name = ds_fdw_metadata[0]["tabname"]
|
||||
server_name = ds_fdw_metadata[0]["servername"]
|
||||
|
||||
# Create temporary table with the augmented results
|
||||
plpy.execute('CREATE UNLOGGED TABLE "{user_schema}".{temp_table_name} AS '
|
||||
'(SELECT {columns}, cartodb_id '
|
||||
'FROM cdb_dataservices_client._OBS_FetchJoinFdwTableData('
|
||||
'{username}::text, {orgname}::text, {schema}::text, {table_name}::text, {function_name}::text, {params}::json) '
|
||||
'AS results({columns_with_types}, cartodb_id int) )'
|
||||
.format(columns=colnames, username=plpy.quote_nullable(username), orgname=plpy.quote_nullable(orgname),
|
||||
user_schema=user_schema, schema=plpy.quote_literal(server_schema), table_name=plpy.quote_literal(server_table_name),
|
||||
function_name=plpy.quote_literal(function_name), params=plpy.quote_literal(params), columns_with_types=columns_with_types,
|
||||
temp_table_name=temporary_table_name)
|
||||
)
|
||||
|
||||
# Wipe user FDW data from the server
|
||||
wiped = plpy.execute("SELECT cdb_dataservices_client._OBS_DisconnectUserTable({username}::text, {orgname}::text, {server_schema}::text, {server_table_name}::text, {fdw_server}::text)"
|
||||
.format(username=plpy.quote_nullable(username), orgname=plpy.quote_nullable(orgname), server_schema=plpy.quote_literal(server_schema), server_table_name=plpy.quote_literal(server_table_name), fdw_server=plpy.quote_literal(server_name))
|
||||
)
|
||||
|
||||
# Add index to cartodb_id
|
||||
plpy.execute('CREATE UNIQUE INDEX {temp_table_name}_pkey ON "{user_schema}".{temp_table_name} (cartodb_id)'
|
||||
.format(user_schema=user_schema, temp_table_name=temporary_table_name)
|
||||
)
|
||||
|
||||
# Prepare table to receive augmented results in new columns
|
||||
for idx, column in enumerate(colnames_arr):
|
||||
if colnames_arr[idx] is not 'the_geom':
|
||||
plpy.execute('ALTER TABLE "{user_schema}".{table_name} ADD COLUMN {column_name} {column_type}'
|
||||
.format(user_schema=user_schema, table_name=table_name, column_name=colnames_arr[idx], column_type=coltypes_arr[idx])
|
||||
)
|
||||
|
||||
# Populate the user table with the augmented results
|
||||
plpy.execute('UPDATE "{user_schema}".{table_name} SET {columns} = '
|
||||
'(SELECT {columns} FROM "{user_schema}".{temporary_table_name} '
|
||||
'WHERE "{user_schema}".{temporary_table_name}.cartodb_id = "{user_schema}".{table_name}.cartodb_id)'
|
||||
.format(columns = colnames, username=plpy.quote_nullable(username), orgname=plpy.quote_nullable(orgname),
|
||||
user_schema = user_schema, table_name=table_name, function_name=function_name, params=params, columns_with_types=columns_with_types,
|
||||
temporary_table_name=temporary_table_name)
|
||||
)
|
||||
|
||||
plpy.execute('DROP TABLE IF EXISTS "{user_schema}".{temporary_table_name}'
|
||||
.format(user_schema=user_schema, table_name=table_name, temporary_table_name=temporary_table_name)
|
||||
)
|
||||
|
||||
return True
|
||||
except Exception as e:
|
||||
plpy.warning('Error trying to augment table {0}'.format(e))
|
||||
# Wipe user FDW data from the server in case of failure if the table was connected
|
||||
if server_table_name:
|
||||
# Wipe local temporary table
|
||||
plpy.execute('DROP TABLE IF EXISTS "{user_schema}".{temporary_table_name}'
|
||||
.format(user_schema=user_schema, table_name=table_name, temporary_table_name=temporary_table_name)
|
||||
)
|
||||
|
||||
wiped = plpy.execute("SELECT cdb_dataservices_client._OBS_DisconnectUserTable({username}::text, {orgname}::text, {server_schema}::text, {server_table_name}::text, {fdw_server}::text)"
|
||||
.format(username=plpy.quote_nullable(username), orgname=plpy.quote_nullable(orgname), server_schema=plpy.quote_literal(server_schema), server_table_name=plpy.quote_literal(server_table_name), fdw_server=plpy.quote_literal(server_name))
|
||||
)
|
||||
return False
|
||||
$$ LANGUAGE plpythonu;
|
||||
|
||||
|
||||
|
||||
CREATE OR REPLACE FUNCTION cdb_dataservices_client.__OBS_GetTable(username text, orgname text, user_db_role text, user_schema text, dbname text, table_name text, output_table_name text, function_name text, params json)
|
||||
RETURNS boolean AS $$
|
||||
try:
|
||||
server_table_name = None
|
||||
# Obtain return types for augmentation procedure
|
||||
ds_return_metadata = plpy.execute("SELECT colnames, coltypes "
|
||||
"FROM cdb_dataservices_client._OBS_GetReturnMetadata({username}::text, {orgname}::text, {function_name}::text, {params}::json);"
|
||||
.format(username=plpy.quote_nullable(username), orgname=plpy.quote_nullable(orgname), function_name=plpy.quote_literal(function_name), params=plpy.quote_literal(params))
|
||||
)
|
||||
|
||||
colnames_arr = ds_return_metadata[0]["colnames"]
|
||||
coltypes_arr = ds_return_metadata[0]["coltypes"]
|
||||
|
||||
# Prepare column and type strings required in the SQL queries
|
||||
colnames = ','.join(colnames_arr)
|
||||
columns_with_types_arr = [colnames_arr[i] + ' ' + coltypes_arr[i] for i in range(0,len(colnames_arr))]
|
||||
columns_with_types = ','.join(columns_with_types_arr)
|
||||
|
||||
|
||||
# Instruct the OBS server side to establish a FDW
|
||||
# The metadata is obtained as well in order to:
|
||||
# - (a) be able to write the query to grab the actual data to be executed in the remote server via pl/proxy,
|
||||
# - (b) be able to tell OBS to free resources when done.
|
||||
ds_fdw_metadata = plpy.execute("SELECT schemaname, tabname, servername "
|
||||
"FROM cdb_dataservices_client._OBS_ConnectUserTable({username}::text, {orgname}::text, {user_db_role}::text, {schema}::text, {dbname}::text, {table_name}::text);"
|
||||
.format(username=plpy.quote_nullable(username), orgname=plpy.quote_nullable(orgname), user_db_role=plpy.quote_literal(user_db_role), schema=plpy.quote_literal(user_schema), dbname=plpy.quote_literal(dbname), table_name=plpy.quote_literal(table_name))
|
||||
)
|
||||
|
||||
server_schema = ds_fdw_metadata[0]["schemaname"]
|
||||
server_table_name = ds_fdw_metadata[0]["tabname"]
|
||||
server_name = ds_fdw_metadata[0]["servername"]
|
||||
|
||||
# Get list of user columns to include in the new table
|
||||
user_table_columns = ','.join(
|
||||
plpy.execute('SELECT array_agg(\'user_table.\' || attname) AS columns '
|
||||
'FROM pg_attribute WHERE attrelid = \'"{user_schema}".{table_name}\'::regclass '
|
||||
'AND attnum > 0 AND NOT attisdropped AND attname NOT LIKE \'the_geom_webmercator\' '
|
||||
'AND NOT attname LIKE ANY(string_to_array(\'{colnames}\',\',\'));'
|
||||
.format(user_schema=user_schema, table_name=table_name, colnames=colnames)
|
||||
)[0]["columns"]
|
||||
)
|
||||
|
||||
# Populate a new table with the augmented results
|
||||
plpy.execute('CREATE TABLE "{user_schema}".{output_table_name} AS '
|
||||
'(SELECT results.{columns}, {user_table_columns} '
|
||||
'FROM {table_name} AS user_table '
|
||||
'LEFT JOIN cdb_dataservices_client._OBS_FetchJoinFdwTableData({username}::text, {orgname}::text, {server_schema}::text, {server_table_name}::text, {function_name}::text, {params}::json) as results({columns_with_types}, cartodb_id int) '
|
||||
'ON results.cartodb_id = user_table.cartodb_id)'
|
||||
.format(output_table_name=output_table_name, columns=colnames, user_table_columns=user_table_columns, username=plpy.quote_nullable(username),
|
||||
orgname=plpy.quote_nullable(orgname), user_schema=user_schema, server_schema=plpy.quote_literal(server_schema), server_table_name=plpy.quote_literal(server_table_name),
|
||||
table_name=table_name, function_name=plpy.quote_literal(function_name), params=plpy.quote_literal(params), columns_with_types=columns_with_types)
|
||||
)
|
||||
|
||||
plpy.execute('ALTER TABLE "{schema}".{table_name} OWNER TO "{user}";'
|
||||
.format(schema=user_schema, table_name=output_table_name, user=user_db_role)
|
||||
)
|
||||
|
||||
# Wipe user FDW data from the server
|
||||
wiped = plpy.execute("SELECT cdb_dataservices_client._OBS_DisconnectUserTable({username}::text, {orgname}::text, {server_schema}::text, {server_table_name}::text, {fdw_server}::text)"
|
||||
.format(username=plpy.quote_nullable(username), orgname=plpy.quote_nullable(orgname), server_schema=plpy.quote_literal(server_schema), server_table_name=plpy.quote_literal(server_table_name), fdw_server=plpy.quote_literal(server_name))
|
||||
)
|
||||
|
||||
return True
|
||||
except Exception as e:
|
||||
plpy.warning('Error trying to get table {0}'.format(e))
|
||||
# Wipe user FDW data from the server in case of failure if the table was connected
|
||||
if server_table_name:
|
||||
wiped = plpy.execute("SELECT cdb_dataservices_client._OBS_DisconnectUserTable({username}::text, {orgname}::text, {server_schema}::text, {server_table_name}::text, {fdw_server}::text)"
|
||||
.format(username=plpy.quote_nullable(username), orgname=plpy.quote_nullable(orgname), server_schema=plpy.quote_literal(server_schema), server_table_name=plpy.quote_literal(server_table_name), fdw_server=plpy.quote_literal(server_name))
|
||||
)
|
||||
return False
|
||||
$$ LANGUAGE plpythonu;
|
||||
|
||||
|
||||
CREATE OR REPLACE FUNCTION cdb_dataservices_client._OBS_ConnectUserTable(username text, orgname text, user_db_role text, user_schema text, dbname text, table_name text)
|
||||
RETURNS cdb_dataservices_client.ds_fdw_metadata AS $$
|
||||
CONNECT _server_conn_str();
|
||||
TARGET cdb_dataservices_server._OBS_ConnectUserTable;
|
||||
$$ LANGUAGE plproxy;
|
||||
|
||||
CREATE OR REPLACE FUNCTION cdb_dataservices_client._OBS_GetReturnMetadata(username text, orgname text, function_name text, params json)
|
||||
RETURNS cdb_dataservices_client.ds_return_metadata AS $$
|
||||
CONNECT _server_conn_str();
|
||||
TARGET cdb_dataservices_server._OBS_GetReturnMetadata;
|
||||
$$ LANGUAGE plproxy;
|
||||
|
||||
CREATE OR REPLACE FUNCTION cdb_dataservices_client._OBS_FetchJoinFdwTableData(username text, orgname text, table_schema text, table_name text, function_name text, params json)
|
||||
RETURNS SETOF record AS $$
|
||||
CONNECT _server_conn_str();
|
||||
TARGET cdb_dataservices_server._OBS_FetchJoinFdwTableData;
|
||||
$$ LANGUAGE plproxy;
|
||||
|
||||
CREATE OR REPLACE FUNCTION cdb_dataservices_client._OBS_DisconnectUserTable(username text, orgname text, table_schema text, table_name text, server_name text)
|
||||
RETURNS boolean AS $$
|
||||
CONNECT _server_conn_str();
|
||||
TARGET cdb_dataservices_server._OBS_DisconnectUserTable;
|
||||
$$ LANGUAGE plproxy;
|
||||
|
||||
GRANT EXECUTE ON FUNCTION cdb_dataservices_client._obs_augmenttable(table_name text, function_name text, params json) TO publicuser;
|
||||
GRANT EXECUTE ON FUNCTION cdb_dataservices_client._obs_gettable(table_name text, output_table_name text, function_name text, params json) TO publicuser;
|
||||
0
client/cdb_dataservices_client--0.11.0.sql
Normal file
0
client/cdb_dataservices_client--0.11.0.sql
Normal file
@@ -1,5 +1,5 @@
|
||||
comment = 'CartoDB dataservices client API extension'
|
||||
default_version = '0.10.2'
|
||||
default_version = '0.11.0'
|
||||
requires = 'plproxy, cartodb'
|
||||
superuser = true
|
||||
schema = cdb_dataservices_client
|
||||
|
||||
Reference in New Issue
Block a user