Struct ColumnarRules 

pub struct ColumnarRules;

Trait Implementations

impl EngineRules for ColumnarRules

fn plan_insert_select(&self, p: InsertSelectParams) -> Result<Vec<SqlPlan>>

UPSERT / INSERT ... ON CONFLICT (pk) DO UPDATE on columnar. Duplicate PK tombstones the prior row via the segment’s delete bitmap; the new row (or its merged form, when on_conflict_updates is non-empty) is appended. Sort-key semantics are unchanged.

fn plan_update_from(&self, p: UpdateFromParams) -> Result<Vec<SqlPlan>>

UPDATE ... FROM writes through the document join-update, which columnar storage does not take.

fn accepts_undeclared_columns(&self) -> bool

Every column is declared at creation and encoded per column.

fn plan_insert(&self, p: InsertParams) -> Result<Vec<SqlPlan>>

Plan an INSERT. Returns Err if the engine does not support inserts (e.g. timeseries routes to TimeseriesIngest instead).

fn plan_upsert(&self, p: UpsertParams) -> Result<Vec<SqlPlan>>

Plan an UPSERT (insert-or-merge). Returns Err for append-only or columnar engines that don’t support merge semantics.

fn plan_scan(&self, p: ScanParams) -> Result<SqlPlan>

Plan a table scan (SELECT without point-get optimization).

fn plan_point_get(&self, p: PointGetParams) -> Result<SqlPlan>

Plan a point lookup by primary key. Returns Err for engines that don’t support O(1) key lookups (e.g. timeseries).

fn plan_update(&self, p: UpdateParams) -> Result<Vec<SqlPlan>>

Plan an UPDATE. Returns Err for append-only engines.

fn plan_delete(&self, p: DeleteParams) -> Result<Vec<SqlPlan>>

Plan a DELETE (point or bulk).

fn plan_truncate(&self, p: TruncateParams) -> Result<Vec<SqlPlan>>

Plan a TRUNCATE. Returns Err(SqlError::Unsupported) for engines that carry no whole-collection clear on the SQL surface (array).

fn plan_aggregate(&self, p: AggregateParams) -> Result<SqlPlan>

Plan a GROUP BY / aggregate query.

fn plan_merge(&self, p: MergeParams) -> Result<Vec<SqlPlan>>

Plan a MERGE statement.

fn implicit_columns(&self) -> &'static [&'static str]

Columns every collection on this engine carries whether or not the DDL declares them. A reference to one resolves like a declared column.

fn value_column_name_is_free(&self) -> bool

True when the engine stores one value whose column name the statement picks. Such a collection resolves any name while it declares no value column, and closes to the declared set once it names one.