refactor out postgres metrics test

tests/otel_postgres_metrics_e2e/postgres_metrics.json

@@ -0,0 +1,146 @@
+{
+  "postgresql.backends": {
+    "data_type": "Sum",
+    "description": "The number of backends."
+  },
+  "postgresql.bgwriter.buffers.allocated": {
+    "data_type": "Sum",
+    "description": "Number of buffers allocated."
+  },
+  "postgresql.bgwriter.buffers.writes": {
+    "data_type": "Sum",
+    "description": "Number of buffers written."
+  },
+  "postgresql.bgwriter.checkpoint.count": {
+    "data_type": "Sum",
+    "description": "The number of checkpoints performed."
+  },
+  "postgresql.bgwriter.duration": {
+    "data_type": "Sum",
+    "description": "Total time spent writing and syncing files to disk by checkpoints."
+  },
+  "postgresql.bgwriter.maxwritten": {
+    "data_type": "Sum",
+    "description": "Number of times the background writer stopped a cleaning scan because it had written too many buffers."
+  },
+  "postgresql.blks_hit": {
+    "data_type": "Sum",
+    "description": "Number of times disk blocks were found already in the buffer cache."
+  },
+  "postgresql.blks_read": {
+    "data_type": "Sum",
+    "description": "Number of disk blocks read in this database."
+  },
+  "postgresql.blocks_read": {
+    "data_type": "Sum",
+    "description": "The number of blocks read"
+  },
+  "postgresql.commits": {
+    "data_type": "Sum",
+    "description": "The number of commits."
+  },
+  "postgresql.connection.max": {
+    "data_type": "Gauge",
+    "description": "Configured maximum number of client connections allowed"
+  },
+  "postgresql.database.count": {
+    "data_type": "Sum",
+    "description": "Number of user databases."
+  },
+  "postgresql.database.locks": {
+    "data_type": "Gauge",
+    "description": "The number of database locks."
+  },
+  "postgresql.db_size": {
+    "data_type": "Sum",
+    "description": "The database disk usage."
+  },
+  "postgresql.deadlocks": {
+    "data_type": "Sum",
+    "description": "The number of deadlocks."
+  },
+  "postgresql.function.calls": {
+    "data_type": "Sum",
+    "description": "The number of calls made to a function. Requires `track_functions=pl|all` in Postgres config."
+  },
+  "postgresql.index.scans": {
+    "data_type": "Sum",
+    "description": "The number of index scans on a table"
+  },
+  "postgresql.index.size": {
+    "data_type": "Gauge",
+    "description": "The size of the index on disk."
+  },
+  "postgresql.operations": {
+    "data_type": "Sum",
+    "description": "The number of db row operations"
+  },
+  "postgresql.replication.data_delay": {
+    "data_type": "Gauge",
+    "description": "The amount of data delayed in replication."
+  },
+  "postgresql.rollbacks": {
+    "data_type": "Sum",
+    "description": "The number of rollbacks."
+  },
+  "postgresql.rows": {
+    "data_type": "Sum",
+    "description": "The number of rows in the database"
+  },
+  "postgresql.sequential_scans": {
+    "data_type": "Sum",
+    "description": "The number of sequential scans"
+  },
+  "postgresql.table.count": {
+    "data_type": "Sum",
+    "description": "Number of user tables in a database."
+  },
+  "postgresql.table.size": {
+    "data_type": "Sum",
+    "description": "Disk space used by a table."
+  },
+  "postgresql.table.vacuum.count": {
+    "data_type": "Sum",
+    "description": "Number of times a table has manually been vacuumed"
+  },
+  "postgresql.temp.io": {
+    "data_type": "Sum",
+    "description": "Total amount of data written to temporary files by queries"
+  },
+  "postgresql.temp_files": {
+    "data_type": "Sum",
+    "description": "The number of temp files."
+  },
+  "postgresql.tup_deleted": {
+    "data_type": "Sum",
+    "description": "Number of rows deleted by queries in the database"
+  },
+  "postgresql.tup_fetched": {
+    "data_type": "Sum",
+    "description": "Number of rows fetched by queries in the database"
+  },
+  "postgresql.tup_inserted": {
+    "data_type": "Sum",
+    "description": "Number of rows inserted by queries in the database"
+  },
+  "postgresql.tup_returned": {
+    "data_type": "Sum",
+    "description": "Number of rows returned by queries in the database"
+  },
+  "postgresql.tup_updated": {
+    "data_type": "Sum",
+    "description": "Number of rows updated by queries in the database"
+  },
+  "postgresql.wal.age": {
+    "data_type": "Gauge",
+    "description": "Age of the oldest WAL file"
+  },
+  "postgresql.wal.delay": {
+    "data_type": "Gauge",
+    "description": "Time between flushing recent WAL locally and receiving notification that the standby server has completed an operation with it."
+  },
+  "postgresql.wal.lag": {
+    "data_type": "Gauge",
+    "description": "Time between flushing recent WAL locally and receiving notification that the standby server has completed an operation with it."
+  }
+}