Pg16 Support (#367)

* feat: add support for PG16

* chore: update changelog and docs

changelogs/fragments/366.yml

@@ -0,0 +1,2 @@
+major_changes:
+ - postgres_exporter - Add support for PostgreSQL 16  

hugo/content/_index.md

@@ -54,7 +54,6 @@ pgMonitor combines multiple open-source software packages and necessary configur
 - RHEL 7/8 (Build/Run Testing, Setup Instructions)
 - CentOS 7 (Build/Run Testing, Setup Instructions)
 - Ubuntu 20 (Build/Run Testing)
-- SLES 15.4 (Build/Run Testing)
 
 ### PostgreSQL
 

postgres_exporter/common/pg16/queries_general.yml

@@ -0,0 +1,31 @@
+###
+#
+# Begin File: PG16 queries_general.yml
+#
+# Copyright © 2017-2023 Crunchy Data Solutions, Inc. All Rights Reserved.
+#
+###
+
+
+ccp_data_checksum_failure:
+  query: "SELECT datname AS dbname
+            , checksum_failures AS count
+            , coalesce(extract(epoch from (clock_timestamp() - checksum_last_failure)), 0) AS time_since_last_failure_seconds
+          FROM pg_catalog.pg_stat_database;"
+  metrics:
+    - dbname:
+        usage: "LABEL"
+        description: "Database name"
+    - count:
+        usage: "GAUGE"
+        description: "Total number of checksum failures on this database"
+    - time_since_last_failure_seconds:
+        usage: "GAUGE"
+        description: "Time interval in seconds since the last checksum failure was encountered"
+
+
+###
+#
+# End File: PG16 queries_general.yml
+#
+###

postgres_exporter/common/pg16/queries_pg_stat_statements.yml

@@ -0,0 +1,169 @@
+###
+#
+# Begin File: PG16 queries_pg_stat_statements.yml
+#
+# Copyright © 2017-2023 Crunchy Data Solutions, Inc. All Rights Reserved.
+#
+###
+
+ccp_pg_stat_statements_total:
+  query: "SELECT pg_get_userbyid(s.userid) as role,
+              d.datname AS dbname,
+              sum(s.calls) AS calls_count,
+              sum(s.total_exec_time) AS exec_time_ms,
+              avg(s.mean_exec_time) AS mean_exec_time_ms,
+              sum(s.rows) AS row_count
+          FROM public.pg_stat_statements s
+          JOIN pg_catalog.pg_database d
+          ON d.oid = s.dbid
+          GROUP BY 1,2"
+  metrics:
+    - role:
+        usage: "LABEL"
+        description: "Role that executed the statement"
+    - dbname:
+        usage: "LABEL"
+        description: "Database in which the statement was executed"
+    - calls_count:
+        usage: "GAUGE"
+        description: "Total number of queries run per user/database"
+    - exec_time_ms:
+        usage: "GAUGE"
+        description: "Total runtime of all queries per user/database"
+    - mean_exec_time_ms:
+        usage: "GAUGE"
+        description: "Mean runtime of all queries per user/database"
+    - row_count:
+        usage: "GAUGE"
+        description: "Total rows returned from all queries per user/database"
+
+
+ccp_pg_stat_statements_top_mean:
+  query: "SELECT pg_get_userbyid(s.userid) as role,
+              d.datname AS dbname,
+              s.queryid,
+              btrim(replace(left(s.query, 40), '\n', '')) AS query,
+              max(s.mean_exec_time) exec_time_ms
+          FROM public.pg_stat_statements s
+          JOIN pg_catalog.pg_database d
+          ON d.oid = s.dbid
+          GROUP BY 1,2,3,4
+          ORDER BY 5 DESC
+          LIMIT #PG_STAT_STATEMENTS_LIMIT#"
+  metrics:
+    - role:
+        usage: "LABEL"
+        description: "Role that executed the statement"
+    - dbname:
+        usage: "LABEL"
+        description: "Database in which the statement was executed"
+    - queryid:
+        usage: "LABEL"
+        description: "Internal hash code, computed from the statement's parse tree"
+    - query:
+        usage: "LABEL"
+        description: "First 40 characters of query text"
+    - exec_time_ms:
+        usage: "GAUGE"
+        description: "Average query runtime in milliseconds"
+
+
+ccp_pg_stat_statements_top_total:
+  query: "SELECT pg_get_userbyid(s.userid) as role,
+              d.datname AS dbname,
+              s.queryid,
+              btrim(replace(left(s.query, 40), '\n', '')) AS query,
+              s.total_exec_time exec_time_ms
+          FROM public.pg_stat_statements s
+          JOIN pg_catalog.pg_database d
+          ON d.oid = s.dbid
+          ORDER BY 5 DESC
+          LIMIT #PG_STAT_STATEMENTS_LIMIT#"
+  metrics:
+    - role:
+        usage: "LABEL"
+        description: "Role that executed the statement"
+    - dbname:
+        usage: "LABEL"
+        description: "Database in which the statement was executed"
+    - queryid:
+        usage: "LABEL"
+        description: "Internal hash code, computed from the statement's parse tree"
+    - query:
+        usage: "LABEL"
+        description: "First 40 characters of query text"
+    - exec_time_ms:
+        usage: "GAUGE"
+        description: "Total time spent in the statement in milliseconds"
+
+
+ccp_pg_stat_statements_top_max:
+  query: "SELECT pg_get_userbyid(s.userid) as role,
+              d.datname AS dbname,
+              s.queryid,
+              btrim(replace(left(s.query, 40), '\n', '')) AS query,
+              s.max_exec_time AS exec_time_ms
+          FROM public.pg_stat_statements s
+          JOIN pg_catalog.pg_database d
+          ON d.oid = s.dbid
+          ORDER BY 5 DESC
+          LIMIT #PG_STAT_STATEMENTS_LIMIT#"
+  metrics:
+    - role:
+        usage: "LABEL"
+        description: "Role that executed the statement"
+    - dbname:
+        usage: "LABEL"
+        description: "Database in which the statement was executed"
+    - queryid:
+        usage: "LABEL"
+        description: "Internal hash code, computed from the statement's parse tree"
+    - query:
+        usage: "LABEL"
+        description: "First 40 characters of query text"
+    - exec_time_ms:
+        usage: "GAUGE"
+        description: "Maximum time spent in the statement in milliseconds"
+
+
+ccp_pg_stat_statements_top_wal:
+  query: "SELECT pg_get_userbyid(s.userid) as role,
+              d.datname AS dbname,
+              s.queryid,
+              btrim(replace(left(s.query, 40), '\n', '')) AS query,
+              s.wal_records AS records,
+              s.wal_fpi AS fpi,
+              s.wal_bytes AS bytes
+          FROM public.pg_stat_statements s
+          JOIN pg_catalog.pg_database d
+          ON d.oid = s.dbid
+          ORDER BY s.wal_bytes DESC
+          LIMIT #PG_STAT_STATEMENTS_LIMIT#"
+  metrics:
+    - role:
+        usage: "LABEL"
+        description: "Role that executed the statement"
+    - dbname:
+        usage: "LABEL"
+        description: "Database in which the statement was executed"
+    - queryid:
+        usage: "LABEL"
+        description: "Internal hash code, computed from the statement's parse tree"
+    - query:
+        usage: "LABEL"
+        description: "First 40 characters of query text"
+    - records:
+        usage: "GAUGE"
+        description: "Total number of WAL records generated by the statement"
+    - fpi:
+        usage: "GAUGE"
+        description: "Total number of WAL full page images generated by the statement"
+    - bytes:
+        usage: "GAUGE"
+        description: "Total amount of WAL generated by the statement in bytes"
+
+###
+#
+# End File: PG16 queries_pg_stat_statements.yml
+#
+###

postgres_exporter/common/pg16/queries_pg_stat_statements_reset_info.yml

@@ -0,0 +1,20 @@
+###
+#
+# Begin File: pg_stat_statements_reset_info.yml
+#
+# Copyright © 2017-2023 Crunchy Data Solutions, Inc. All Rights Reserved.
+#
+###
+ccp_pg_stat_statements_reset:
+  query: "select monitor.pg_stat_statements_reset_info(#PG_STAT_STATEMENTS_THROTTLE_MINUTES#) as time"
+  metrics:
+    - time:
+        usage: "GAUGE"
+        description: "Epoch time when stats were reset"
+
+###
+#
+# End File: pg_stat_statements_reset_info.yml
+#
+###
+