{"kind": "metric", "major": "18", "item": {"slug": "pg_stat_checkpointer-num_requested", "name": "pg_stat_checkpointer.num_requested", "name_zh": "", "category": "pg_stat_checkpointer", "summary": "Number of requested checkpoints", "aliases": ["num_requested", "pg_stat_checkpointer"], "content_hash": "c4b5a4f134daa8300c7bf34f2f5bd28e1d3c5465b9510fb0c591c2b52dd3c4cb", "versions": {"17": {"view": "pg_stat_checkpointer", "facts": [{"label": "View", "value": "pg_stat_checkpointer"}, {"label": "Field", "value": "num_requested"}, {"label": "SQL type", "value": "bigint"}, {"label": "Units named in the field definition", "value": "Not specified"}, {"label": "Reset observation", "value": "Time at which these statistics were last reset"}], "field": "num_requested", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_checkpointer/?v=17", "label": "pg_stat_checkpointer columns"}, {"url": "/docs/17/monitoring-stats.html", "label": "Statistics collection and reset functions"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "17.11", "major": "17", "channel": "stable", "revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "sources": [{"url": "/docs/17/monitoring-stats.html#PG-STAT-CHECKPOINTER-VIEW", "path": "monitoring-stats.html", "label": "PostgreSQL 17 English manual", "sha256": "007af6e8ab39b925963273ec3ba7f06f8ee6fbfaad821f07a1dc78383dbb9b99"}], "sections": [{"title": "View semantics", "paragraphs": ["The pg_stat_checkpointer view will always have a single row, containing data about the checkpointer process of the cluster."]}, {"title": "Collection and reset context", "paragraphs": ["Read the same-version statistics collection and view documentation below for reset scope and visibility. No per-field reset rule is inferred from the field name."]}, {"code": "SELECT num_requested FROM pg_catalog.pg_stat_checkpointer;", "title": "Inspect this field", "paragraphs": ["Example query; no execution result or measured value is asserted."]}], "sql_type": "bigint", "signature": "SELECT num_requested FROM pg_catalog.pg_stat_checkpointer;", "documented": true, "description": ["Number of requested checkpoints that have been performed"], "manual_html": "", "manual_path": "/docs/17/monitoring-stats.html", "source_only": false, "comparison_data": {"view": "pg_stat_checkpointer", "field": "num_requested", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "99bb106d3825f50c95e68e71e6d138fe96c9bc4f5c3095aa0bc05a040b197ff3", "units_mentioned": []}, "18": {"view": "pg_stat_checkpointer", "facts": [{"label": "View", "value": "pg_stat_checkpointer"}, {"label": "Field", "value": "num_requested"}, {"label": "SQL type", "value": "bigint"}, {"label": "Units named in the field definition", "value": "Not specified"}, {"label": "Reset observation", "value": "Time at which these statistics were last reset"}], "field": "num_requested", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_checkpointer/?v=18", "label": "pg_stat_checkpointer columns"}, {"url": "/docs/18/monitoring-stats.html", "label": "Statistics collection and reset functions"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sources": [{"url": "/docs/18/monitoring-stats.html#PG-STAT-CHECKPOINTER-VIEW", "path": "monitoring-stats.html", "label": "PostgreSQL 18 English manual", "sha256": "aa979eed08627fbf715a9d792094a162a73671db5af810f3ab2aad3e073d5722"}], "sections": [{"title": "View semantics", "paragraphs": ["The pg_stat_checkpointer view will always have a single row, containing data about the checkpointer process of the cluster."]}, {"title": "Collection and reset context", "paragraphs": ["Read the same-version statistics collection and view documentation below for reset scope and visibility. No per-field reset rule is inferred from the field name."]}, {"code": "SELECT num_requested FROM pg_catalog.pg_stat_checkpointer;", "title": "Inspect this field", "paragraphs": ["Example query; no execution result or measured value is asserted."]}], "sql_type": "bigint", "signature": "SELECT num_requested FROM pg_catalog.pg_stat_checkpointer;", "documented": true, "description": ["Number of requested checkpoints"], "manual_html": "", "manual_path": "/docs/18/monitoring-stats.html", "source_only": false, "comparison_data": {"view": "pg_stat_checkpointer", "field": "num_requested", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "99bb106d3825f50c95e68e71e6d138fe96c9bc4f5c3095aa0bc05a040b197ff3", "units_mentioned": []}, "19": {"view": "pg_stat_checkpointer", "facts": [{"label": "View", "value": "pg_stat_checkpointer"}, {"label": "Field", "value": "num_requested"}, {"label": "SQL type", "value": "bigint"}, {"label": "Units named in the field definition", "value": "Not specified"}, {"label": "Reset observation", "value": "Time at which these statistics were last reset"}], "field": "num_requested", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_checkpointer/?v=19", "label": "pg_stat_checkpointer columns"}, {"url": "/docs/19/monitoring-stats.html", "label": "Statistics collection and reset functions"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v19beta4/postgresql-19beta4.tar.bz2", "label": "19beta4", "major": "19", "channel": "preview", "revision": "83157ee9c599d03b2f7a3d73ef3a56ec24e0e79cc2b3501a64d1364f56398c86"}, "sources": [{"url": "/docs/19/monitoring-stats.html#PG-STAT-CHECKPOINTER-VIEW", "path": "monitoring-stats.html", "label": "PostgreSQL 19 English manual", "sha256": "26e1b6632bdf05ebe081987cb60ab4ded526eec7db73e41316fbd69466c494fe"}], "sections": [{"title": "View semantics", "paragraphs": ["The pg_stat_checkpointer view will always have a single row, containing data about the checkpointer process of the cluster."]}, {"title": "Collection and reset context", "paragraphs": ["Read the same-version statistics collection and view documentation below for reset scope and visibility. No per-field reset rule is inferred from the field name."]}, {"code": "SELECT num_requested FROM pg_catalog.pg_stat_checkpointer;", "title": "Inspect this field", "paragraphs": ["Example query; no execution result or measured value is asserted."]}], "sql_type": "bigint", "signature": "SELECT num_requested FROM pg_catalog.pg_stat_checkpointer;", "documented": true, "description": ["Number of requested checkpoints"], "manual_html": "", "manual_path": "/docs/19/monitoring-stats.html", "source_only": false, "comparison_data": {"view": "pg_stat_checkpointer", "field": "num_requested", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "99bb106d3825f50c95e68e71e6d138fe96c9bc4f5c3095aa0bc05a040b197ff3", "units_mentioned": []}, "20": {"view": "pg_stat_checkpointer", "facts": [{"label": "View", "value": "pg_stat_checkpointer"}, {"label": "Field", "value": "num_requested"}, {"label": "SQL type", "value": "bigint"}, {"label": "Units named in the field definition", "value": "Not specified"}, {"label": "Reset observation", "value": "Time at which these statistics were last reset"}], "field": "num_requested", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_checkpointer/?v=20", "label": "pg_stat_checkpointer columns"}, {"url": "/docs/devel/monitoring-stats.html", "label": "Statistics collection and reset functions"}], "release": {"ref": "https://ftp.postgresql.org/pub/snapshot/dev/postgresql-snapshot.tar.bz2", "label": "20devel", "major": "20", "channel": "devel", "revision": "4d3346909b201ac1648232cf290462a7070c119326f56196f1f0253ed80fae41"}, "sources": [{"url": "/docs/devel/monitoring-stats.html#PG-STAT-CHECKPOINTER-VIEW", "path": "monitoring-stats.html", "label": "PostgreSQL 20 English manual", "sha256": "dfc27a108b70bdf88f310801ae3db011a8f608befd927722e5f3e9bdcc070251"}], "sections": [{"title": "View semantics", "paragraphs": ["The pg_stat_checkpointer view will always have a single row, containing data about the checkpointer process of the cluster."]}, {"title": "Collection and reset context", "paragraphs": ["Read the same-version statistics collection and view documentation below for reset scope and visibility. No per-field reset rule is inferred from the field name."]}, {"code": "SELECT num_requested FROM pg_catalog.pg_stat_checkpointer;", "title": "Inspect this field", "paragraphs": ["Example query; no execution result or measured value is asserted."]}], "sql_type": "bigint", "signature": "SELECT num_requested FROM pg_catalog.pg_stat_checkpointer;", "documented": true, "description": ["Number of requested checkpoints"], "manual_html": "", "manual_path": "/docs/devel/monitoring-stats.html", "source_only": false, "comparison_data": {"view": "pg_stat_checkpointer", "field": "num_requested", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "99bb106d3825f50c95e68e71e6d138fe96c9bc4f5c3095aa0bc05a040b197ff3", "units_mentioned": []}}}, "snapshot": {"view": "pg_stat_checkpointer", "facts": [{"label": "View", "value": "pg_stat_checkpointer"}, {"label": "Field", "value": "num_requested"}, {"label": "SQL type", "value": "bigint"}, {"label": "Units named in the field definition", "value": "Not specified"}, {"label": "Reset observation", "value": "Time at which these statistics were last reset"}], "field": "num_requested", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_checkpointer/?v=18", "label": "pg_stat_checkpointer columns"}, {"url": "/docs/18/monitoring-stats.html", "label": "Statistics collection and reset functions"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sources": [{"url": "/docs/18/monitoring-stats.html#PG-STAT-CHECKPOINTER-VIEW", "path": "monitoring-stats.html", "label": "PostgreSQL 18 English manual", "sha256": "aa979eed08627fbf715a9d792094a162a73671db5af810f3ab2aad3e073d5722"}], "sections": [{"title": "View semantics", "paragraphs": ["The pg_stat_checkpointer view will always have a single row, containing data about the checkpointer process of the cluster."]}, {"title": "Collection and reset context", "paragraphs": ["Read the same-version statistics collection and view documentation below for reset scope and visibility. No per-field reset rule is inferred from the field name."]}, {"code": "SELECT num_requested FROM pg_catalog.pg_stat_checkpointer;", "title": "Inspect this field", "paragraphs": ["Example query; no execution result or measured value is asserted."]}], "sql_type": "bigint", "signature": "SELECT num_requested FROM pg_catalog.pg_stat_checkpointer;", "documented": true, "description": ["Number of requested checkpoints"], "manual_html": "", "manual_path": "/docs/18/monitoring-stats.html", "source_only": false, "comparison_data": {"view": "pg_stat_checkpointer", "field": "num_requested", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "99bb106d3825f50c95e68e71e6d138fe96c9bc4f5c3095aa0bc05a040b197ff3", "units_mentioned": []}, "comparison": {"left": "17", "right": "18", "status": "unchanged", "diff": ""}}