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Rename CDB_FDW_Create to CDB_FDW_Setup, formatting fixes

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This commit is contained in:
Alejandro Martínez 2016-02-04 12:06:22 +01:00
parent d7b560324a
commit a9b9f1ff6c
1 changed files with 36 additions and 48 deletions
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84
scripts-available/CDB_ForeignTable.sql
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@ -4,7 +4,7 @@
-- All the FDW settings are read from the `cdb_conf.fdws` entry json file. -- All the FDW settings are read from the `cdb_conf.fdws` entry json file.
--------------------------- ---------------------------
CREATE OR REPLACE FUNCTION cartodb._CDB_Create_FDW(name text, config json) CREATE OR REPLACE FUNCTION cartodb._CDB_Setup_FDW(fdw_name text, config json)
RETURNS void RETURNS void
AS $$ AS $$
DECLARE DECLARE
@ -12,55 +12,49 @@ DECLARE
option record; option record;
org_role text; org_role text;
BEGIN BEGIN
IF NOT EXISTS ( SELECT * FROM pg_extension WHERE extname = 'postgres_fdw') -- This function tries to be as idempotent as possible, by not creating anything more than once
THEN -- (not even using IF NOT EXIST to avoid throwing warnings)
IF NOT EXISTS ( SELECT * FROM pg_extension WHERE extname = 'postgres_fdw') THEN
CREATE EXTENSION postgres_fdw; CREATE EXTENSION postgres_fdw;
END IF; END IF;
-- This function is idempotent
-- Create FDW first if it does not exist -- Create FDW first if it does not exist
IF NOT EXISTS ( SELECT * FROM pg_foreign_server WHERE srvname = name) IF NOT EXISTS ( SELECT * FROM pg_foreign_server WHERE srvname = fdw_name)
THEN THEN
EXECUTE FORMAT('CREATE SERVER %I FOREIGN DATA WRAPPER postgres_fdw ', EXECUTE FORMAT('CREATE SERVER %I FOREIGN DATA WRAPPER postgres_fdw', fdw_name);
name);
END IF; END IF;
-- Set FDW settings -- Set FDW settings
FOR row IN SELECT p.key, p.value from lateral json_each_text(config->'server') p FOR row IN SELECT p.key, p.value from lateral json_each_text(config->'server') p
LOOP LOOP
IF NOT EXISTS (WITH a AS (select split_part(unnest(srvoptions), '=', 1) as options from pg_foreign_server where srvname=name) SELECT * from a where options = row.key) IF NOT EXISTS (WITH a AS (select split_part(unnest(srvoptions), '=', 1) as options from pg_foreign_server where srvname=fdw_name) SELECT * from a where options = row.key)
THEN THEN
EXECUTE FORMAT('ALTER SERVER %I OPTIONS (ADD %I %L)', name, row.key, row.value); EXECUTE FORMAT('ALTER SERVER %I OPTIONS (ADD %I %L)', fdw_name, row.key, row.value);
ELSE ELSE
EXECUTE FORMAT('ALTER SERVER %I OPTIONS (SET %I %L)', name, row.key, row.value); EXECUTE FORMAT('ALTER SERVER %I OPTIONS (SET %I %L)', fdw_name, row.key, row.value);
END IF; END IF;
END LOOP; END LOOP;
-- Create user mappings -- Create user mappings
FOR row IN SELECT p.key, p.value from lateral json_each(config->'users') p FOR row IN SELECT p.key, p.value from lateral json_each(config->'users') p LOOP
LOOP
-- Check if entry on pg_user_mappings exists -- Check if entry on pg_user_mappings exists
IF NOT EXISTS ( SELECT * FROM pg_user_mappings WHERE srvname = name AND usename = row.key ) IF NOT EXISTS ( SELECT * FROM pg_user_mappings WHERE srvname = name AND usename = row.key ) THEN
THEN EXECUTE FORMAT ('CREATE USER MAPPING FOR %I SERVER %I', row.key, fdw_name);
EXECUTE FORMAT ('CREATE USER MAPPING FOR %I SERVER %I', row.key, name);
END IF; END IF;
-- Update user mapping settings -- Update user mapping settings
FOR option IN SELECT o.key, o.value from lateral json_each_text(row.value) o FOR option IN SELECT o.key, o.value from lateral json_each_text(row.value) o LOOP
LOOP IF NOT EXISTS (WITH a AS (select split_part(unnest(umoptions), '=', 1) as options from pg_user_mappings WHERE srvname = name AND usename = row.key) SELECT * from a where options = option.key) THEN
IF NOT EXISTS (WITH a AS (select split_part(unnest(umoptions), '=', 1) as options from pg_user_mappings WHERE srvname = name AND usename = row.key) SELECT * from a where options = option.key) EXECUTE FORMAT('ALTER USER MAPPING FOR %I SERVER %I OPTIONS (ADD %I %L)', row.key, fdw_name, option.key, option.value);
THEN
EXECUTE FORMAT('ALTER USER MAPPING FOR %I SERVER %I OPTIONS (ADD %I %L)', row.key, name, option.key, option.value);
ELSE ELSE
EXECUTE FORMAT('ALTER USER MAPPING FOR %I SERVER %I OPTIONS (SET %I %L)', row.key, name, option.key, option.value); EXECUTE FORMAT('ALTER USER MAPPING FOR %I SERVER %I OPTIONS (SET %I %L)', row.key, fdw_name, option.key, option.value);
END IF; END IF;
END LOOP; END LOOP;
END LOOP; END LOOP;
-- Create schema if it does not exist. -- Create schema if it does not exist.
IF NOT EXISTS ( SELECT * from pg_namespace WHERE nspname=name) IF NOT EXISTS ( SELECT * from pg_namespace WHERE nspname=fdw_name) THEN
THEN EXECUTE FORMAT ('CREATE SCHEMA %I', fdw_name);
EXECUTE FORMAT ('CREATE SCHEMA %I', name);
END IF; END IF;
-- Give the organization role usage permisions over the schema -- Give the organization role usage permisions over the schema
@ -68,55 +62,49 @@ BEGIN
EXECUTE FORMAT ('GRANT USAGE ON SCHEMA %I TO %I', name, org_role); EXECUTE FORMAT ('GRANT USAGE ON SCHEMA %I TO %I', name, org_role);
-- Bring here the remote cdb_tablemetadata -- Bring here the remote cdb_tablemetadata
IF NOT EXISTS ( SELECT * FROM PG_CLASS WHERE relnamespace = (SELECT oid FROM pg_namespace WHERE nspname='do') and relname='cdb_tablemetadata') IF NOT EXISTS ( SELECT * FROM PG_CLASS WHERE relnamespace = (SELECT oid FROM pg_namespace WHERE nspname='do') and relname='cdb_tablemetadata') THEN
THEN EXECUTE FORMAT ('IMPORT FOREIGN SCHEMA cartodb LIMIT TO (cdb_tablemetadata) FROM SERVER %I INTO %I;', fdw_name, fdw_name, fdw_name);
EXECUTE FORMAT ('IMPORT FOREIGN SCHEMA cartodb LIMIT TO (cdb_tablemetadata) FROM SERVER %I INTO %I;', name, name, name);
END IF; END IF;
EXECUTE FORMAT ('GRANT SELECT ON %I.cdb_tablemetadata TO %I', name, org_role); EXECUTE FORMAT ('GRANT SELECT ON %I.cdb_tablemetadata TO %I', fdw_name, org_role);
END END
$$ $$
LANGUAGE PLPGSQL; LANGUAGE PLPGSQL;
CREATE OR REPLACE FUNCTION cartodb._CDB_Create_FDWS() CREATE OR REPLACE FUNCTION cartodb._CDB_Setup_FDWS()
RETURNS VOID AS RETURNS VOID AS
$$ $$
DECLARE DECLARE
row record; row record;
BEGIN BEGIN
FOR row IN SELECT p.key, p.value from lateral json_each(cartodb.CDB_Conf_GetConf('fdws')) p FOR row IN SELECT p.key, p.value from lateral json_each(cartodb.CDB_Conf_GetConf('fdws')) p LOOP
LOOP EXECUTE 'SELECT cartodb._CDB_Setup_FDW($1, $2)' USING row.key, row.value;
EXECUTE 'SELECT cartodb._CDB_Create_FDW($1, $2)' USING row.key, row.value;
END LOOP; END LOOP;
END END
$$ $$
LANGUAGE PLPGSQL; LANGUAGE PLPGSQL;
CREATE OR REPLACE FUNCTION cartodb._CDB_Create_FDW(name text) CREATE OR REPLACE FUNCTION cartodb._CDB_Setup_FDW(fdw_name text)
RETURNS void AS RETURNS void AS
$BODY$ $BODY$
DECLARE DECLARE
config json; config json;
BEGIN BEGIN
SELECT p.value FROM LATERAL json_each(cartodb.CDB_Conf_GetConf('fdws')) p WHERE p.key = name INTO config; SELECT p.value FROM LATERAL json_each(cartodb.CDB_Conf_GetConf('fdws')) p WHERE p.key = fdw_name INTO config;
EXECUTE 'SELECT cartodb._CDB_Create_FDW($1, $2)' USING name, config; EXECUTE 'SELECT cartodb._CDB_Setup_FDW($1, $2)' USING fdw_name, config;
END END
$BODY$ $BODY$
LANGUAGE plpgsql VOLATILE LANGUAGE plpgsql VOLATILE;
SECURITY DEFINER;
CREATE OR REPLACE FUNCTION cartodb.CDB_Add_Remote_Table(source text, table_name text) CREATE OR REPLACE FUNCTION cartodb.CDB_Add_Remote_Table(source text, table_name text)
RETURNS void AS RETURNS void AS
$$ $$
BEGIN BEGIN
PERFORM cartodb._CDB_Create_FDW(source); PERFORM cartodb._CDB_Setup_FDW(source);
EXECUTE FORMAT ('IMPORT FOREIGN SCHEMA %I LIMIT TO (%I) FROM SERVER %I INTO %I;', source, table_name, source, source); EXECUTE FORMAT ('IMPORT FOREIGN SCHEMA %I LIMIT TO (%I) FROM SERVER %I INTO %I;', source, table_name, source, source);
--- Grant SELECT to publicuser --- Grant SELECT to publicuser
EXECUTE FORMAT ('GRANT SELECT ON %I.%I TO publicuser;', source, table_name); EXECUTE FORMAT ('GRANT SELECT ON %I.%I TO publicuser;', source, table_name);
END END
$$ $$
LANGUAGE plpgsql LANGUAGE plpgsql;
security definer;