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InMemoryCatalog

krishiv_sql::catalog

Struct InMemoryCatalog 

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pub struct InMemoryCatalog { /* private fields */ }
Expand description

An in-memory catalog backed by a sorted map.

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impl InMemoryCatalog

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pub fn new() -> Self

Create a new, empty in-memory catalog.

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pub fn register_table_with_batches( &mut self, metadata: TableMetadata, batches: Vec<RecordBatch>, ) -> CatalogResult<()>

Register a table and attach in-memory Arrow batches for SQL scans (P0-9).

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pub fn table_batches(&self, name: &str) -> Option<Arc<Vec<RecordBatch>>>

Return stored batches for a registered table, if any.

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impl CatalogProvider for InMemoryCatalog

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fn list_tables(&self) -> Vec<String>

Return the names of all tables in the catalog.
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fn get_table(&self, name: &str) -> CatalogResult<&dyn TableProvider>

Look up a table by name.
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fn register_table(&mut self, metadata: TableMetadata) -> CatalogResult<()>

Register a table in the catalog. Read more
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impl Default for InMemoryCatalog

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fn default() -> Self

Returns the “default value” for a type. Read more

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