Struct QueryEngine 

pub struct QueryEngine { /* private fields */ }

Legacy query engine wrapper for backward compatibility.

Delegates to AdvancedQueryEngine (re-exported from engine); kept as a stable public surface used by crate::Database and the CLI’s REPL.

Implementations

impl QueryEngine

pub fn new( storage: Arc<StorageEngine>, schema: Arc<SchemaManager>, memory: Arc<MemoryManager>, config: &Config, ) -> Result<Self>

Create a new query engine.

pub async fn execute(&self, cql: &str) -> Result<QueryResult>

Execute a CQL query

pub async fn prepare(&self, cql: &str) -> Result<Arc<PreparedQuery>>

Prepare a query for repeated execution

pub fn stats(&self) -> QueryStats

Get query statistics

pub fn clear_cache(&self)

Clear prepared statement cache

pub async fn explain(&self, cql: &str) -> Result<ExplainResult>

Explain a query

pub async fn analyze(&self, cql: &str) -> Result<AnalyzeResult>

Analyze query performance

pub async fn execute_streaming( &self, cql: &str, config: StreamingConfig, ) -> Result<QueryResultIterator>

Execute a CQL query with streaming results (Issue #280)

Returns a QueryResultIterator that yields rows incrementally via a bounded channel, enabling memory-efficient processing of large result sets.

pub fn cache_stats(&self) -> CacheStats

Get cache statistics

pub async fn has_schema_for_table(&self, table: &str) -> bool

Check if schema is available for a table

pub async fn schema_status(&self, table: &str) -> SchemaStatus

Get detailed schema status for debugging

Trait Implementations

impl Debug for QueryEngine

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.