Add new test

Makefile

@@ -20,7 +20,7 @@ DATA = pg_ivm--1.0.sql \
        pg_ivm--1.9--1.10.sql \
 	   pg_ivm--1.10.sql
 
-REGRESS = pg_ivm create_immv refresh_immv
+REGRESS = pg_ivm create_immv refresh_immv preload_libraries_warning
 
 PGVER = $(shell $(PG_CONFIG) --version | sed "s/^[^ ]* \([0-9]*\).*$$/\1/" 2>/dev/null)
 

expected/preload_libraries_warning.out

@@ -0,0 +1,123 @@
+-- SQL tests to validate that the session_preload_libraries warning is emitted
+-- whenever pg_ivm is not in session_preload_libraries.
+DROP EXTENSION IF EXISTS pg_ivm CASCADE;
+NOTICE:  drop cascades to 12 other objects
+DETAIL:  drop cascades to trigger IVM_trigger_ins_before_17637 on table t
+drop cascades to trigger IVM_trigger_del_before_17638 on table t
+drop cascades to trigger IVM_trigger_upd_before_17639 on table t
+drop cascades to trigger IVM_trigger_truncate_before_17640 on table t
+drop cascades to trigger IVM_trigger_ins_after_17641 on table t
+drop cascades to trigger IVM_trigger_del_after_17642 on table t
+drop cascades to trigger IVM_trigger_upd_after_17643 on table t
+drop cascades to trigger IVM_trigger_truncate_after_17644 on table t
+drop cascades to trigger IVM_prevent_immv_change_17621 on table mv
+drop cascades to trigger IVM_prevent_immv_change_17622 on table mv
+drop cascades to trigger IVM_prevent_immv_change_17623 on table mv
+drop cascades to trigger IVM_prevent_immv_change_17624 on table mv
+-- Validate that pg_ivm 1.10 cannot be created if pg_ivm is not in
+-- session_preload_libraries.
+ALTER SYSTEM RESET session_preload_libraries;
+SELECT pg_reload_conf();
+ pg_reload_conf 
+----------------
+ t
+(1 row)
+
+\c -
+CREATE EXTENSION pg_ivm VERSION '1.9';  -- expect success
+ALTER EXTENSION pg_ivm UPDATE;          -- expect failure
+ERROR:  pg_ivm is not loaded in shared_preload_libraries or session_preload_libraries
+HINT:  Add pg_ivm to session_preload_libraries and restart the session. Or, add pg_ivm to shared_preload_libraries and restart Postgres.
+CONTEXT:  PL/pgSQL function inline_code_block line 13 at RAISE
+DROP EXTENSION pg_ivm;
+CREATE EXTENSION pg_ivm;                -- expect failure
+ERROR:  pg_ivm is not loaded in shared_preload_libraries or session_preload_libraries
+HINT:  Add pg_ivm to session_preload_libraries and restart the session. Or, add pg_ivm to shared_preload_libraries and restart Postgres.
+CONTEXT:  PL/pgSQL function inline_code_block line 13 at RAISE
+-- Validate that pg_ivm 1.10 can be created if pg_ivm is in
+-- session_preload_libraries.
+ALTER SYSTEM SET session_preload_libraries = pg_ivm;
+SELECT pg_reload_conf();
+ pg_reload_conf 
+----------------
+ t
+(1 row)
+
+\c -
+CREATE EXTENSION pg_ivm VERSION '1.9';  -- expect success
+ALTER EXTENSION pg_ivm UPDATE;          -- expect success
+DROP EXTENSION pg_ivm;
+CREATE EXTENSION pg_ivm;                -- expect success
+-- Verify that the warning is emitted when each SQL function is called.
+ALTER SYSTEM RESET session_preload_libraries;
+SELECT pg_reload_conf();
+ pg_reload_conf 
+----------------
+ t
+(1 row)
+
+\c -
+CREATE TABLE mytab (i int primary key, a text);
+SELECT pgivm.create_immv('myview', 'SELECT i, reverse(a) FROM mytab');
+WARNING:  pg_ivm is not loaded in shared_preload_libraries or session_preload_libraries
+HINT:  Add pg_ivm to session_preload_libraries and restart the session. Or, add pg_ivm to shared_preload_libraries and restart Postgres.
+NOTICE:  created index "myview_index" on immv "myview"
+ create_immv 
+-------------
+           0
+(1 row)
+
+SELECT pgivm.refresh_immv('myview', true);
+WARNING:  pg_ivm is not loaded in shared_preload_libraries or session_preload_libraries
+HINT:  Add pg_ivm to session_preload_libraries and restart the session. Or, add pg_ivm to shared_preload_libraries and restart Postgres.
+ refresh_immv 
+--------------
+            0
+(1 row)
+
+SELECT pgivm.get_immv_def('myview');
+WARNING:  pg_ivm is not loaded in shared_preload_libraries or session_preload_libraries
+HINT:  Add pg_ivm to session_preload_libraries and restart the session. Or, add pg_ivm to shared_preload_libraries and restart Postgres.
+       get_immv_def        
+---------------------------
+  SELECT i,               +
+     reverse(a) AS reverse+
+    FROM mytab
+(1 row)
+
+-- Verify that the warning is emitted by the maintenance triggers.
+INSERT INTO mytab VALUES (1, 'asdf');
+WARNING:  pg_ivm is not loaded in shared_preload_libraries or session_preload_libraries
+HINT:  Add pg_ivm to session_preload_libraries and restart the session. Or, add pg_ivm to shared_preload_libraries and restart Postgres.
+-- Verify that the warning is not emitted after pg_ivm is added to
+-- session_preload_libraries.
+ALTER SYSTEM SET session_preload_libraries = pg_ivm;
+SELECT pg_reload_conf();
+ pg_reload_conf 
+----------------
+ t
+(1 row)
+
+\c -
+SELECT pgivm.create_immv('myview2', 'SELECT i, reverse(a) FROM mytab');
+NOTICE:  created index "myview2_index" on immv "myview2"
+ create_immv 
+-------------
+           1
+(1 row)
+
+SELECT pgivm.refresh_immv('myview2', true);
+ refresh_immv 
+--------------
+            1
+(1 row)
+
+SELECT pgivm.get_immv_def('myview2');
+       get_immv_def        
+---------------------------
+  SELECT i,               +
+     reverse(a) AS reverse+
+    FROM mytab
+(1 row)
+
+INSERT INTO mytab VALUES (2, 'qwer');

sql/preload_libraries_warning.sql

@@ -0,0 +1,51 @@
+-- SQL tests to validate that the session_preload_libraries warning is emitted
+-- whenever pg_ivm is not in session_preload_libraries.
+
+DROP EXTENSION IF EXISTS pg_ivm CASCADE;
+
+-- Validate that pg_ivm 1.10 cannot be created if pg_ivm is not in
+-- session_preload_libraries.
+ALTER SYSTEM RESET session_preload_libraries;
+SELECT pg_reload_conf();
+\c -
+
+CREATE EXTENSION pg_ivm VERSION '1.9';  -- expect success
+ALTER EXTENSION pg_ivm UPDATE;          -- expect failure
+DROP EXTENSION pg_ivm;
+CREATE EXTENSION pg_ivm;                -- expect failure
+
+-- Validate that pg_ivm 1.10 can be created if pg_ivm is in
+-- session_preload_libraries.
+ALTER SYSTEM SET session_preload_libraries = pg_ivm;
+SELECT pg_reload_conf();
+\c -
+
+CREATE EXTENSION pg_ivm VERSION '1.9';  -- expect success
+ALTER EXTENSION pg_ivm UPDATE;          -- expect success
+DROP EXTENSION pg_ivm;
+CREATE EXTENSION pg_ivm;                -- expect success
+
+-- Verify that the warning is emitted when each SQL function is called.
+ALTER SYSTEM RESET session_preload_libraries;
+SELECT pg_reload_conf();
+\c -
+
+CREATE TABLE mytab (i int primary key, a text);
+SELECT pgivm.create_immv('myview', 'SELECT i, reverse(a) FROM mytab');
+SELECT pgivm.refresh_immv('myview', true);
+SELECT pgivm.get_immv_def('myview');
+
+-- Verify that the warning is emitted by the maintenance triggers.
+INSERT INTO mytab VALUES (1, 'asdf');
+
+-- Verify that the warning is not emitted after pg_ivm is added to
+-- session_preload_libraries.
+ALTER SYSTEM SET session_preload_libraries = pg_ivm;
+SELECT pg_reload_conf();
+\c -
+
+SELECT pgivm.create_immv('myview2', 'SELECT i, reverse(a) FROM mytab');
+SELECT pgivm.refresh_immv('myview2', true);
+SELECT pgivm.get_immv_def('myview2');
+INSERT INTO mytab VALUES (2, 'qwer');
+