common_query/
prelude.rs

1// Copyright 2023 Greptime Team
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15pub use datafusion_common::ScalarValue;
16
17pub use crate::columnar_value::ColumnarValue;
18pub use crate::function::*;
19pub use crate::logical_plan::AggregateFunction;
20pub use crate::signature::{Signature, TypeSignature, Volatility};
21
22/// Default timestamp column name for Prometheus metrics.
23pub const GREPTIME_TIMESTAMP: &str = "greptime_timestamp";
24/// Default value column name for Prometheus metrics.
25pub const GREPTIME_VALUE: &str = "greptime_value";
26/// Default counter column name for OTLP metrics.
27pub const GREPTIME_COUNT: &str = "greptime_count";
28/// Default physical table name
29pub const GREPTIME_PHYSICAL_TABLE: &str = "greptime_physical_table";
common_query/prelude.rs

common_query/
prelude.rs
