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fix: [CPCAP-12685] getting statistics for PG17+ #574

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fix: [CPCAP-12685] getting statistics for PG17+ #574

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fix: [CPCAP-12685] getting statistics for PG17+
svetychkina Aug 6, 2026
e3ea1e7
fix: [CPCAP-12685] queries separation for backward compatibility
svetychkina Aug 7, 2026
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40 changes: 32 additions & 8 deletions operator/charts/patroni-services/query-exporter/query-exporter-queries.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1214,24 +1214,48 @@ queries:
AS value, ARRAY_AGG(bucket) AS bucket FROM metrics
JOIN buckets USING (datname) GROUP BY 1, 2, 3) as dd
pg_stat_bgwriter_query:
databases:
- master
metrics:
- pg_stat_bgwriter_buffers_alloc
- pg_stat_bgwriter_stats_reset
- pg_stat_bgwriter_buffers_clean
- pg_stat_bgwriter_maxwritten_clean
sql: SELECT current_database() as datname, buffers_alloc as pg_stat_bgwriter_buffers_alloc, stats_reset as pg_stat_bgwriter_stats_reset, buffers_clean as pg_stat_bgwriter_buffers_clean, maxwritten_clean as pg_stat_bgwriter_maxwritten_clean FROM pg_stat_bgwriter
pg_stat_bgwriter_checkpoint_query:
databases:
- master
metrics:
- pg_stat_bgwriter_checkpoints_timed
- pg_stat_bgwriter_checkpoints_req
- pg_stat_bgwriter_checkpoint_write_time
- pg_stat_bgwriter_checkpoint_sync_time
- pg_stat_bgwriter_buffers_checkpoint
sql: SELECT current_database() as datname, checkpoints_timed as pg_stat_bgwriter_checkpoints_timed, checkpoints_req as pg_stat_bgwriter_checkpoints_req, checkpoint_write_time as pg_stat_bgwriter_checkpoint_write_time, checkpoint_sync_time as pg_stat_bgwriter_checkpoint_sync_time, buffers_checkpoint as pg_stat_bgwriter_buffers_checkpoint FROM pg_stat_bgwriter
pg_stat_bgwriter_backend_query:
databases:
- master
metrics:
- pg_stat_bgwriter_buffers_backend
- pg_stat_bgwriter_buffers_alloc
- pg_stat_bgwriter_stats_reset
- pg_stat_bgwriter_buffers_backend_fsync
sql: SELECT current_database() as datname, buffers_backend as pg_stat_bgwriter_buffers_backend, buffers_backend_fsync as pg_stat_bgwriter_buffers_backend_fsync FROM pg_stat_bgwriter
pg_stat_checkpointer_query:
databases:
- master
metrics:
- pg_stat_bgwriter_checkpoints_timed
- pg_stat_bgwriter_checkpoints_req
- pg_stat_bgwriter_checkpoint_write_time
- pg_stat_bgwriter_checkpoint_sync_time
- pg_stat_bgwriter_buffers_checkpoint
- pg_stat_bgwriter_buffers_clean
- pg_stat_bgwriter_maxwritten_clean
sql: SELECT current_database() as datname, num_timed as pg_stat_bgwriter_checkpoints_timed, num_requested as pg_stat_bgwriter_checkpoints_req, write_time as pg_stat_bgwriter_checkpoint_write_time, sync_time as pg_stat_bgwriter_checkpoint_sync_time, buffers_written as pg_stat_bgwriter_buffers_checkpoint FROM pg_stat_checkpointer
pg_stat_io_backend_query:
databases:
- master
metrics:
- pg_stat_bgwriter_buffers_backend
- pg_stat_bgwriter_buffers_backend_fsync
sql: SELECT current_database() as datname, checkpoints_timed as pg_stat_bgwriter_checkpoints_timed, checkpoints_req as pg_stat_bgwriter_checkpoints_req,
checkpoint_write_time as pg_stat_bgwriter_checkpoint_write_time, checkpoint_sync_time as pg_stat_bgwriter_checkpoint_sync_time, buffers_checkpoint as pg_stat_bgwriter_buffers_checkpoint, buffers_clean as pg_stat_bgwriter_buffers_clean,
maxwritten_clean as pg_stat_bgwriter_maxwritten_clean, buffers_backend as pg_stat_bgwriter_buffers_backend, buffers_backend_fsync as pg_stat_bgwriter_buffers_backend_fsync, buffers_alloc as pg_stat_bgwriter_buffers_alloc, stats_reset as pg_stat_bgwriter_stats_reset
FROM pg_stat_bgwriter
sql: SELECT current_database() as datname, COALESCE(sum(writes), 0) as pg_stat_bgwriter_buffers_backend, COALESCE(sum(fsyncs), 0) as pg_stat_bgwriter_buffers_backend_fsync FROM pg_stat_io WHERE backend_type = 'client backend'
pg_stat_calls_query:
databases:
- master
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