common_meta::ddl::drop_table::executor

Struct DropTableExecutor

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pub struct DropTableExecutor {
    cluster_id: ClusterId,
    table: TableName,
    table_id: TableId,
    drop_if_exists: bool,
}
Expand description

DropTableExecutor performs:

  • Drops the metadata of the table.
  • Invalidates the cache on the Frontend nodes.
  • Drops the regions on the Datanode nodes.

Fields§

§cluster_id: ClusterId§table: TableName§table_id: TableId§drop_if_exists: bool

Implementations§

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impl DropTableExecutor

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pub fn new( cluster_id: ClusterId, table: TableName, table_id: TableId, drop_if_exists: bool, ) -> Self

Returns the DropTableExecutor.

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impl DropTableExecutor

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pub async fn on_prepare(&self, ctx: &DdlContext) -> Result<Control<()>>

Checks whether table exists.

  • Early returns if table not exists and drop_if_exists is true.
  • Throws an error if table not exists and drop_if_exists is false.
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pub async fn on_delete_metadata( &self, ctx: &DdlContext, table_route_value: &TableRouteValue, ) -> Result<()>

Deletes the table metadata logically.

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pub async fn on_delete_metadata_tombstone( &self, ctx: &DdlContext, table_route_value: &TableRouteValue, ) -> Result<()>

Deletes the table metadata tombstone permanently.

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pub async fn on_destroy_metadata( &self, ctx: &DdlContext, table_route_value: &TableRouteValue, ) -> Result<()>

Deletes metadata for table permanently.

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pub async fn on_restore_metadata( &self, ctx: &DdlContext, table_route_value: &TableRouteValue, ) -> Result<()>

Restores the table metadata.

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pub async fn invalidate_table_cache(&self, ctx: &DdlContext) -> Result<()>

Invalidates frontend caches

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pub async fn on_drop_regions( &self, ctx: &DdlContext, region_routes: &[RegionRoute], ) -> Result<()>

Drops region on datanode.

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