add new scripts

Author: Shane Borden

Makefile

@@ -66,7 +66,9 @@ build-sqlscripts: clean-sqlscripts      ## Build the collector SQL scripts.
 	python3 -c "import m2r; python_text = m2r.convert(open('postgres/README.md').read()); f = open('postgres/README.txt', 'w'); f.write(python_text); f.close()"
 	@mkdir -p $(BUILD_DIR)/postgres
 	@cp postgres/*.sql $(BUILD_DIR)/postgres
+	@cp postgres/.psqlrc $(BUILD_DIR)/postgres
 	@cp postgres/README.txt $(BUILD_DIR)/postgres
+	@cp postgres/README.md $(BUILD_DIR)/postgres
 	@cp  LICENSE $(BUILD_DIR)/postgres
 	@echo "SQL Helper Scripts for Postgres version $(VERSION) ($(COMMIT_SHA))" > $(BUILD_DIR)/postgres/VERSION.txt
 

mssql/mssql_detect_tde_db_encryption.sql

@@ -0,0 +1,22 @@
+SELECT
+    d.name AS DatabaseName,
+    d.is_encrypted,
+    dek.encryption_state,
+    CASE dek.encryption_state
+        WHEN 0 THEN 'No Database Encryption Key Present, Not Encrypted'
+        WHEN 1 THEN 'Unencrypted'
+        WHEN 2 THEN 'Encryption in Progress'
+        WHEN 3 THEN 'Encrypted'
+        WHEN 4 THEN 'Key Change in Progress'
+        WHEN 5 THEN 'Decryption in Progress'
+        WHEN 6 THEN 'Protection Change in Progress'
+        ELSE 'Not Encrypted or No Key' -- Or NULL if no entry in dek
+    END AS EncryptionStatusDescription,
+    dek.percent_complete,
+    dek.key_algorithm,
+    dek.key_length
+FROM
+    sys.databases d
+LEFT JOIN
+    sys.dm_database_encryption_keys dek ON d.database_id = dek.database_id
+WHERE d.is_encrypted <> 0;

postgres/postgres_report_high_water_mark_wasted_space.sql

@@ -0,0 +1,74 @@
+-- Copyright 2024 shaneborden
+-- 
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+-- 
+--     https://www.apache.org/licenses/LICENSE-2.0
+-- 
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+
+CREATE EXTENSION pg_freespacemap;
+ 
+CREATE OR REPLACE FUNCTION show_empty_pages(p_table_name TEXT)
+RETURNS VOID AS $$
+DECLARE
+    -- Core processing variables
+    table_oid_regclass  REGCLASS;
+    block_size          BIGINT;
+    fsm_granularity     BIGINT;
+    max_fsm_free_space  BIGINT;
+    total_pages         BIGINT;
+    high_water_mark     BIGINT := 0;
+ 
+    -- Variables for the final summary
+    first_empty_block   BIGINT;
+    free_pages_at_end   BIGINT;
+    free_space_at_end   TEXT;
+BEGIN
+    -- Setup
+    table_oid_regclass := p_table_name::regclass;
+    block_size  := current_setting('block_size')::bigint;
+    SELECT relpages INTO total_pages FROM pg_class WHERE oid = table_oid_regclass;
+    fsm_granularity    := block_size / 256;
+    max_fsm_free_space := floor((block_size - 24) / fsm_granularity) * fsm_granularity;
+ 
+    --------------------------------------------------------------------------------
+    -- PASS 1: FIND THE HIGH-WATER MARK (last page with data)
+    --------------------------------------------------------------------------------
+    FOR i IN REVERSE (total_pages - 1)..0 LOOP
+        IF pg_freespace(table_oid_regclass, i) < max_fsm_free_space THEN
+            high_water_mark := i;
+            EXIT;
+        END IF;
+    END LOOP;
+ 
+    --------------------------------------------------------------------------------
+    -- FINAL STEP: CALCULATE AND RAISE THE SUMMARY NOTICE
+    --------------------------------------------------------------------------------
+    first_empty_block := high_water_mark + 1;
+    free_pages_at_end := total_pages - first_empty_block;
+    IF free_pages_at_end < 0 THEN
+        free_pages_at_end := 0;
+    END IF;
+    free_space_at_end := pg_size_pretty(free_pages_at_end * block_size);
+ 
+    RAISE NOTICE '-------------------------------------------------------------';
+    RAISE NOTICE 'Summary for table: %', p_table_name;
+    RAISE NOTICE '-------------------------------------------------------------';
+    RAISE NOTICE 'The High Water Mark (HWM) is at page: %', total_pages;
+    IF total_pages <> first_empty_block THEN
+        RAISE NOTICE 'First potentially empty page is at: %', first_empty_block;
+        RAISE NOTICE 'Total Pages in Table: %', total_pages;
+        RAISE NOTICE 'Number of potentially truncatable pages at the end: %', free_pages_at_end;
+        RAISE NOTICE 'Amount of free space at the end of the table: %', free_space_at_end;
+    ELSE
+        RAISE NOTICE 'There are no empty pages to truncate';
+    END IF;
+    RAISE NOTICE '-------------------------------------------------------------';
+END;
+$$ LANGUAGE plpgsql;

postgres/postgres_table_and_index_bloat_stats.sql

@@ -133,6 +133,6 @@ ROUND((
             0.0
         ELSE
             sml.relpages::float / otta
-        END)::numeric, 1) > 10
+        END)::numeric, 1) > 0
 ORDER BY
     2,4,3 DESC;