# Query performance regression case for GreptimeDB issue #7913.
# This is a case config for the generic direct-SST fixture generator. The
# generator must not hard-code PromQL/#7913 behavior; this file only supplies one
# schema/layout/query instance.

[case]
name = "promql_pushdown_7913"
description = "PromQL/TQL small-window selectors should stay fast on high-cardinality metric-like fixtures"
issue = "https://github.com/GreptimeTeam/greptimedb/issues/7913"

[scenario]
kind = "direct_readable_sst"
seed = 7913


[[scenario.tables]]
database = "public"
name = "promql_pushdown_7913"
engine = "mito"
append_mode = true
sst_format = "flat"
primary_key = ["host", "instance"]
time_index = "greptime_timestamp"

[[scenario.tables.columns]]
name = "host"
type = "STRING"
semantic = "tag"
distribution = { kind = "cardinality", values = 256, prefix = "host" }

[[scenario.tables.columns]]
name = "instance"
type = "STRING"
semantic = "tag"
distribution = { kind = "cardinality", values = 4096, prefix = "instance" }

[[scenario.tables.columns]]
name = "download_mbs"
type = "DOUBLE"
semantic = "field"
distribution = { kind = "deterministic_wave", min = 0.0, max = 1000.0 }

[[scenario.tables.columns]]
name = "greptime_timestamp"
type = "TIMESTAMP(9)"
semantic = "timestamp"

[scenario.layout]
regions = 1
sst_count = 1024
rows_per_sst = 32768
row_group_size = 8192
series_count = 4096
start_unix_nanos = 1_704_067_200_000_000_000 # 2024-01-01T00:00:00Z
step_nanos = 1_000_000_000
time_range_layout = "non_overlapping_per_sst"
series_layout = "timestamp_major"

[[scenario.queries]]
name = "selector_5m_high_cardinality"
kind = "tql"
# TQL start/end timestamps are epoch seconds. `timestamp_major` layout writes one
# sample for every series at each scrape timestamp, so short PromQL windows still
# scan millions of raw samples instead of millisecond-scale synthetic trickles.
# The default 5-minute lookback means scans start before each query window.
query = "TQL ANALYZE VERBOSE (1704069000, 1704069300, '15s') promql_pushdown_7913{host=~'host.*'}"
warmup = 3
iterations = 9

[scenario.queries.thresholds]
max_candidate_latency_regression_pct = 15

[[scenario.queries]]
name = "latest_timestamp_equality_subquery"
kind = "sql"
query = "SELECT * FROM promql_pushdown_7913 WHERE greptime_timestamp = (SELECT greptime_timestamp FROM promql_pushdown_7913 ORDER BY greptime_timestamp DESC LIMIT 1)"
warmup = 3
iterations = 9

[scenario.queries.thresholds]
max_candidate_latency_regression_pct = 15

[[scenario.queries]]
name = "selector_15m_high_cardinality"
kind = "tql"
query = "TQL ANALYZE VERBOSE (1704069000, 1704069900, '15s') promql_pushdown_7913{host=~'host.*'}"
warmup = 3
iterations = 9

[scenario.queries.thresholds]
max_candidate_latency_regression_pct = 15

[[scenario.queries]]
name = "selector_1h_high_cardinality"
kind = "tql"
query = "TQL ANALYZE VERBOSE (1704069000, 1704072600, '15s') promql_pushdown_7913{host=~'host.*'}"
warmup = 3
iterations = 9

[scenario.queries.thresholds]
max_candidate_latency_regression_pct = 15