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feat: parallelism hint in grpc

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Signed-off-by: discord9 <discord9@163.com>
This commit is contained in:
discord9
2025-06-12 16:58:14 +08:00
parent 05b708ed2e
commit 0eca6333e5
2 changed files with 14 additions and 1 deletions
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11
src/query/src/datafusion.rs
View File

@@ -478,6 +478,17 @@ impl QueryEngine for DatafusionQueryEngine {
fn engine_context(&self, query_ctx: QueryContextRef) -> QueryEngineContext {
let mut state = self.state.session_state();
state.config_mut().set_extension(query_ctx.clone());
if let Some(parallelism) = query_ctx.extension("query_parallelism") {
if let Ok(n) = parallelism.parse::<u64>() {
let new_cfg = state.config().clone().with_target_partitions(n as usize);
*state.config_mut() = new_cfg;
} else {
common_telemetry::warn!(
"Failed to parse query_parallelism: {}, using default value",
parallelism
);
}
}
QueryEngineContext::new(state, query_ctx)
}

4
src/session/src/hints.rs
View File

@@ -18,7 +18,7 @@ pub const HINTS_KEY_PREFIX: &str = "x-greptime-hint-";
pub const READ_PREFERENCE_HINT: &str = "read_preference";
pub const HINT_KEYS: [&str; 7] = [
pub const HINT_KEYS: [&str; 8] = [
"x-greptime-hint-auto_create_table",
"x-greptime-hint-ttl",
"x-greptime-hint-append_mode",
@@ -26,4 +26,6 @@ pub const HINT_KEYS: [&str; 7] = [
"x-greptime-hint-physical_table",
"x-greptime-hint-skip_wal",
"x-greptime-hint-read_preference",
// same as `query.parallelism` in query options, but only for this query
"x-greptime-hint-query_parallelism",
];