Interface QwpColumnBuffer

Length values had when the last row completed -- everything past it belongs to the row in progress. rollbackRow() truncates to this mark; see the failure it exists to prevent there. Maintained by QwpTableBuffer.

One entry per row; true means NULL.

Rows accounted for so far, including nulls.

Non-null values only; QWP compacts values around the null bitmap. LONG, DATE, and TIMESTAMP values accept safe integer numbers or signed int64 bigints. LONG_ARRAY applies the same rule to every element.