domain-related fixes (base type), remove functions get_min_range_value() & get_max_range_value(), overloaded function get_part_range() (written in C), fix calls of get_part_range() - pass dummy NULL cast to partitioned column's type

Author: funbringer

expected/pg_pathman.out

@@ -9,7 +9,7 @@ INSERT INTO test.hash_rel VALUES (1, 1);
 INSERT INTO test.hash_rel VALUES (2, 2);
 INSERT INTO test.hash_rel VALUES (3, 3);
 SELECT pathman.create_hash_partitions('test.hash_rel', 'value', 3);
-ERROR:  Partitioning key 'value' must be NOT NULL
+ERROR:  partitioning key 'value' must be NOT NULL
 ALTER TABLE test.hash_rel ALTER COLUMN value SET NOT NULL;
 SELECT pathman.create_hash_partitions('test.hash_rel', 'value', 3, partition_data:=false);
  create_hash_partitions 
@@ -130,10 +130,10 @@ CREATE INDEX ON test.range_rel (dt);
 INSERT INTO test.range_rel (dt, txt)
 SELECT g, md5(g::TEXT) FROM generate_series('2015-01-01', '2015-04-30', '1 day'::interval) as g;
 SELECT pathman.create_range_partitions('test.range_rel', 'dt', '2015-01-01'::DATE, '1 month'::INTERVAL, 2);
-ERROR:  Partitioning key 'dt' must be NOT NULL
+ERROR:  partitioning key 'dt' must be NOT NULL
 ALTER TABLE test.range_rel ALTER COLUMN dt SET NOT NULL;
 SELECT pathman.create_range_partitions('test.range_rel', 'dt', '2015-01-01'::DATE, '1 month'::INTERVAL, 2);
-ERROR:  Not enough partitions to fit all values of 'dt'
+ERROR:  not enough partitions to fit all values of 'dt'
 SELECT pathman.create_range_partitions('test.range_rel', 'DT', '2015-01-01'::DATE, '1 month'::INTERVAL);
 NOTICE:  sequence "range_rel_seq" does not exist, skipping
  create_range_partitions 
@@ -1045,7 +1045,7 @@ EXPLAIN (COSTS OFF) SELECT * FROM test.range_rel WHERE dt BETWEEN '2014-12-15' A
 (3 rows)
 
 SELECT pathman.add_range_partition('test.range_rel', '2014-12-01'::DATE, '2015-01-02'::DATE);
-ERROR:  Specified range overlaps with existing partitions
+ERROR:  specified range overlaps with existing partitions
 SELECT pathman.add_range_partition('test.range_rel', '2014-12-01'::DATE, '2015-01-01'::DATE);
  add_range_partition 
 ---------------------
@@ -1064,7 +1064,7 @@ EXPLAIN (COSTS OFF) SELECT * FROM test.range_rel WHERE dt BETWEEN '2014-12-15' A
 
 CREATE TABLE test.range_rel_archive (LIKE test.range_rel INCLUDING ALL);
 SELECT pathman.attach_range_partition('test.range_rel', 'test.range_rel_archive', '2014-01-01'::DATE, '2015-01-01'::DATE);
-ERROR:  Specified range overlaps with existing partitions
+ERROR:  specified range overlaps with existing partitions
 SELECT pathman.attach_range_partition('test.range_rel', 'test.range_rel_archive', '2014-01-01'::DATE, '2014-12-01'::DATE);
  attach_range_partition 
 ------------------------
@@ -1103,12 +1103,12 @@ CREATE TABLE test.range_rel_test1 (
 	txt TEXT,
 	abc INTEGER);
 SELECT pathman.attach_range_partition('test.range_rel', 'test.range_rel_test1', '2013-01-01'::DATE, '2014-01-01'::DATE);
-ERROR:  Partition must have the exact same structure as parent
+ERROR:  partition must have the exact same structure as parent
 CREATE TABLE test.range_rel_test2 (
 	id  SERIAL PRIMARY KEY,
 	dt  TIMESTAMP);
 SELECT pathman.attach_range_partition('test.range_rel', 'test.range_rel_test2', '2013-01-01'::DATE, '2014-01-01'::DATE);
-ERROR:  Partition must have the exact same structure as parent
+ERROR:  partition must have the exact same structure as parent
 /*
  * Zero partitions count and adding partitions with specified name
  */
@@ -1124,9 +1124,9 @@ NOTICE:  sequence "zero_seq" does not exist, skipping
 (1 row)
 
 SELECT pathman.append_range_partition('test.zero', 'test.zero_0');
-ERROR:  Cannot append to empty partitions set
+ERROR:  cannot append to empty partitions set
 SELECT pathman.prepend_range_partition('test.zero', 'test.zero_1');
-ERROR:  Cannot prepend to empty partitions set
+ERROR:  cannot prepend to empty partitions set
 SELECT pathman.add_range_partition('test.zero', 50, 70, 'test.zero_50');
  add_range_partition 
 ---------------------
@@ -1689,8 +1689,8 @@ CREATE TABLE replies(id SERIAL PRIMARY KEY, message_id INTEGER REFERENCES messag
 INSERT INTO messages SELECT g, md5(g::text) FROM generate_series(1, 10) as g;
 INSERT INTO replies SELECT g, g, md5(g::text) FROM generate_series(1, 10) as g;
 SELECT create_range_partitions('messages', 'id', 1, 100, 2);
-WARNING:  Foreign key 'replies_message_id_fkey' references to the relation 'messages'
-ERROR:  Relation "messages" is referenced from other relations
+WARNING:  foreign key 'replies_message_id_fkey' references relation 'messages'
+ERROR:  relation "messages" is referenced from other relations
 ALTER TABLE replies DROP CONSTRAINT replies_message_id_fkey;
 SELECT create_range_partitions('messages', 'id', 1, 100, 2);
 NOTICE:  sequence "messages_seq" does not exist, skipping

init.sql

@@ -332,30 +332,30 @@ BEGIN
 	WHERE oid = p_relation INTO rel_persistence;
 
 	IF rel_persistence = 't'::CHAR THEN
-		RAISE EXCEPTION 'Temporary table "%" cannot be partitioned',
+		RAISE EXCEPTION 'temporary table "%" cannot be partitioned',
 						p_relation::TEXT;
 	END IF;
 
 	IF EXISTS (SELECT * FROM @extschema@.pathman_config
 			   WHERE partrel = p_relation) THEN
-		RAISE EXCEPTION 'Relation "%" has already been partitioned', p_relation;
+		RAISE EXCEPTION 'relation "%" has already been partitioned', p_relation;
 	END IF;
 
 	IF @extschema@.is_attribute_nullable(p_relation, p_attribute) THEN
-		RAISE EXCEPTION 'Partitioning key ''%'' must be NOT NULL', p_attribute;
+		RAISE EXCEPTION 'partitioning key ''%'' must be NOT NULL', p_attribute;
 	END IF;
 
 	/* Check if there are foreign keys that reference the relation */
 	FOR v_rec IN (SELECT *
 				  FROM pg_constraint WHERE confrelid = p_relation::regclass::oid)
 	LOOP
 		is_referenced := TRUE;
-		RAISE WARNING 'Foreign key ''%'' references to the relation ''%''',
+		RAISE WARNING 'foreign key ''%'' references relation ''%''',
 				v_rec.conname, p_relation;
 	END LOOP;
 
 	IF is_referenced THEN
-		RAISE EXCEPTION 'Relation "%" is referenced from other relations', p_relation;
+		RAISE EXCEPTION 'relation "%" is referenced from other relations', p_relation;
 	END IF;
 
 	RETURN TRUE;
@@ -414,7 +414,7 @@ BEGIN
 	relname = @extschema@.get_schema_qualified_name(cls);
 
 	IF relname IS NULL THEN
-		RAISE EXCEPTION 'Relation %s does not exist', cls;
+		RAISE EXCEPTION 'relation %s does not exist', cls;
 	END IF;
 
 	RETURN relname;
@@ -529,7 +529,7 @@ BEGIN
 	DELETE FROM @extschema@.pathman_config_params WHERE partrel = parent_relid;
 
 	IF conf_num_del = 0 THEN
-		RAISE EXCEPTION 'Relation "%" has no partitions', parent_relid::text;
+		RAISE EXCEPTION 'relation "%" has no partitions', parent_relid::text;
 	END IF;
 
 	FOR v_rec IN (SELECT inhrelid::regclass::text AS tbl