Returns MemoryPool used to allocate memory during execution. This instance is a child of the MemoryPool passed in the constructor.

Add a new not null item to the map, increasing its size by 1.

These functions can be used to check if any elements in a given row are NULL. They are not especially fast, so they should only be used when necessary

Makes 'result' writable for 'rows'. Allocates or reuses a vector from the pool of 'execCtx_' if needed.

Returns true if the decoded vector was constant.

Returns current state of execution.

If `rows` is null returns 'size_', otherwise returns rows->end().

Allocates a buffer to fit at least 'size' indices and initializes them to zero.

* @return the number of rows of data in this vector */

static

Appends the json string of the value at i to a string writer.

Returns the mapping from top-level rows to rows in the base vector or data() buffer.

Starts the task if not started yet.

* @return true if the vector has anything selected, false otherwise */