Module planner

Structs

FunctionArgs 🔒

PromPlanner

PromPlannerContext 🔒

Enums

ScalarFunc 🔒

Represents different types of scalar functions supported in PromQL expressions. Each variant defines how the function should be processed and what arguments it expects.

Constants

DB_COLUMN_MATCHER 🔒

DEFAULT_FIELD_COLUMN 🔒

default value column name for empty metric

DEFAULT_TIME_INDEX_COLUMN 🔒

FIELD_COLUMN_MATCHER 🔒

Special modifier to project field columns under multi-field mode

INTERVAL_1H 🔒

Interval 1 hour in millisecond

LE_COLUMN_NAME 🔒

le column for conventional histogram.

MAX_SCATTER_POINTS 🔒

Threshold for scatter scan mode

SCALAR_FUNCTION 🔒

scalar() function in PromQL.

SCHEMA_COLUMN_MATCHER 🔒

Special modifier for cross schema query

SPECIAL_ABSENT_FUNCTION 🔒

absent() function in PromQL

SPECIAL_HISTOGRAM_QUANTILE 🔒

histogram_quantile function in PromQL

SPECIAL_TIME_FUNCTION 🔒

time() function in PromQL.

SPECIAL_VECTOR_FUNCTION 🔒

vector function in PromQL

Statics

LABEL_NAME_REGEX 🔒

Static regex for validating label names according to Prometheus specification. Label names must match the regex: [a-zA-Z_][a-zA-Z0-9_]*

Functions

normalize_matcher

Unescapes the value of the matcher