Managed Service for PostgreSQL API, gRPC: PerformanceDiagnosticsService.ListRawStatements

Статья создана

Yandex Cloud

Обновлена 26 ноября 2024 г.

gRPC request
ListRawStatementsRequest
ListRawStatementsResponse
QueryStatement
PrimaryKey
QueryStats

Retrieves statistics on planning and execution of SQL statements (queries).

gRPC request

rpc ListRawStatements (ListRawStatementsRequest) returns (ListRawStatementsResponse)

ListRawStatementsRequest

{
  "cluster_id": "string",
  "from_time": "google.protobuf.Timestamp",
  "to_time": "google.protobuf.Timestamp",
  "page_size": "int64",
  "page_token": "string"
}

Field	Description
cluster_id	string Required field. ID of a PostgreSQL cluster to request query statistics for. To get a PostgreSQL cluster ID, use the ClusterService.List method.
from_time	google.protobuf.Timestamp Beginning of the period for which you need to request data (in the RFC3339 text format).
to_time	google.protobuf.Timestamp End of the period for which you need to request data (in the RFC3339 text format).
page_size	int64 The maximum number of results per page to return. If the number of the results is larger than `page_size`, the service returns ListRawStatementsResponse.next_page_token. You can use it to get the next page of the results in subsequent requests.
page_token	string Page token. To get the next page of results, set `page_token` to the ListRawStatementsResponse.next_page_token returned by the previous SQL statement list request.

ListRawStatementsResponse

{
  "statements": [
    {
      "key": {
        "host": "string",
        "user": "string",
        "database": "string",
        "toplevel": "bool",
        "query_id": "string",
        "plan_id": "string"
      },
      "stats": {
        "time": "google.protobuf.Timestamp",
        "query": "string",
        "normalized_plan": "string",
        "example_plan": "string",
        "plans": "int64",
        "total_plan_time": "double",
        "min_plan_time": "double",
        "max_plan_time": "double",
        "mean_plan_time": "double",
        "stddev_plan_time": "double",
        "calls": "int64",
        "total_time": "double",
        "min_time": "double",
        "max_time": "double",
        "mean_time": "double",
        "stddev_time": "double",
        "rows": "int64",
        "shared_blks_hit": "int64",
        "shared_blks_read": "int64",
        "shared_blks_dirtied": "int64",
        "shared_blks_written": "int64",
        "local_blks_hit": "int64",
        "local_blks_read": "int64",
        "local_blks_dirtied": "int64",
        "local_blks_written": "int64",
        "temp_blks_read": "int64",
        "temp_blks_written": "int64",
        "blk_read_time": "double",
        "blk_write_time": "double",
        "temp_blk_read_time": "double",
        "temp_blk_write_time": "double",
        "wal_records": "int64",
        "wal_fpi": "int64",
        "wal_bytes": "int64",
        "jit_functions": "int64",
        "jit_generation_time": "double",
        "jit_inlining_count": "int64",
        "jit_inlining_time": "double",
        "jit_optimization_count": "int64",
        "jit_optimization_time": "double",
        "jit_emission_count": "int64",
        "jit_emission_time": "double",
        "startup_cost": "int64",
        "total_cost": "int64",
        "plan_rows": "int64",
        "plan_width": "int64",
        "reads": "int64",
        "writes": "int64",
        "user_time": "double",
        "system_time": "double"
      }
    }
  ],
  "next_page_token": "string"
}

Field

Description

statements[]

QueryStatement

List of SQL statements (queries).

next_page_token

string

This token allows you to get the next page of results when requesting the PostgreSQL session list. If the number of the results is larger than ListRawStatementsRequest.page_size, use the next_page_token as the value for the ListRawStatementsRequest.page_token parameter in the next request. Each subsequent request will have its own next_page_token to continue paging through the results.

QueryStatement

Field

Description

key

PrimaryKey

Primary keys in tables with the statistics on planning and execution of queries.

stats

QueryStats

Statistics on planning and execution of queries.

PrimaryKey

Field	Description
host	string Host of the connected client.
user	string User ID.
database	string Database ID.
toplevel	bool Returns [true] if a query is executed as a top-level SQL statement or if the pg_stat_statements.track parameter is set to the value [top].
query_id	string Query ID.
plan_id	string Query planning ID.

QueryStats

Field	Description
time	google.protobuf.Timestamp Time of collecting statistics on planning and execution of queries.
query	string Statement text.
normalized_plan	string Normalized query plan.
example_plan	string Example of a query execution plan (without normalization).
plans	int64 Number of times that a query was planned. The parameter returns a non-zero value if the pg_stat_statements.track_planning parameter is enabled.
total_plan_time	double Total time taken to plan a query, in milliseconds. The parameter returns a non-zero value if the [pg_stat_statements.track_planning] parameter is enabled.
min_plan_time	double Minimum time taken to plan a query, in milliseconds. The parameter returns a non-zero value if the [pg_stat_statements.track_planning] parameter is enabled.
max_plan_time	double Maximum time taken to plan a query, in milliseconds. The parameter returns a non-zero value if the [pg_stat_statements.track_planning] parameter is enabled.
mean_plan_time	double Average time taken to plan a query, in milliseconds. The parameter returns a non-zero value if the [pg_stat_statements.track_planning] parameter is enabled.
stddev_plan_time	double Population standard deviation of the time taken to plan a query, in milliseconds. The parameter returns a non-zero value if the [pg_stat_statements.track_planning] parameter is enabled.
calls	int64 Number of times that a query was executed.
total_time	double Total time taken to execute a query, in milliseconds.
min_time	double Minimum time taken to execute a query, in milliseconds.
max_time	double Maximum time taken to execute a query, in milliseconds.
mean_time	double Average time taken to execute a query, in milliseconds.
stddev_time	double Population standard deviation of the time taken to execute a query, in milliseconds.
rows	int64 Number of retrieved or affected rows.
shared_blks_hit	int64 Number of shared blocks that are hit from cache.
shared_blks_read	int64 Number of read shared blocks.
shared_blks_dirtied	int64 Number of 'dirtied' shared blocks.
shared_blks_written	int64 Number of written shared blocks.
local_blks_hit	int64 Number of local blocks that are hit from cache.
local_blks_read	int64 Number of read local blocks.
local_blks_dirtied	int64 Number of 'dirtied' local blocks.
local_blks_written	int64 Number of written local blocks.
temp_blks_read	int64 Number of read temporary blocks.
temp_blks_written	int64 Number of written temporary blocks.
blk_read_time	double Time taken to read data blocks, in milliseconds. The parameter returns a non-zero value if the track_io_timing parameter is enabled.
blk_write_time	double Time taken to record data blocks, in milliseconds. The parameter returns a non-zero value if the [track_io_timing] parameter is enabled.
temp_blk_read_time	double Time taken to read temporary data blocks, in milliseconds. The parameter returns a non-zero value if the [track_io_timing] parameter is enabled.
temp_blk_write_time	double Time taken to record temporary data blocks, in milliseconds. The parameter returns a non-zero value if the [track_io_timing] parameter is enabled.
wal_records	int64 Number of WAL records generated during a given period.
wal_fpi	int64 Number of WAL full page images generated during a given period.
wal_bytes	int64 Number of WAL logs generated during a given period, in bytes.
jit_functions	int64 Number of JIT-compiled functions.
jit_generation_time	double Time taken to generate JIT code, in milliseconds.
jit_inlining_count	int64 Number of times that functions have been inlined.
jit_inlining_time	double Time taken to inline functions, in milliseconds.
jit_optimization_count	int64 Number of times that a query was optimized.
jit_optimization_time	double Time taken to optimize a query, in milliseconds.
jit_emission_count	int64 Number of times that code was emitted.
jit_emission_time	double Time taken to emit code.
startup_cost	int64 Cost of receiving a response to a query before the first row of the response is issued.
total_cost	int64 Cost of receiving a response to a query when all the rows of the response are issued.
plan_rows	int64 Expected number of rows that a given plan node should issue.
plan_width	int64 Expected average size of rows that a given plan node should issue.
reads	int64 Number of bytes that the filesystem layer has read.
writes	int64 Number of bytes that the filesystem layer has written.
user_time	double User CPU time used.
system_time	double System CPU time used.

Managed Service for PostgreSQL API, gRPC: PerformanceDiagnosticsService.ListRawStatements

gRPC requestgRPC request

ListRawStatementsRequestListRawStatementsRequest

ListRawStatementsResponseListRawStatementsResponse

QueryStatementQueryStatement

PrimaryKeyPrimaryKey

QueryStatsQueryStats