Module plain_format

Format to store in parquet.

We store two additional internal columns at last:

• __sequence, the sequence number of a row. Type: uint64
• __op_type, the op type of the row. Type: uint8

We store other columns in the same order as RegionMetadata::field_columns().

Constants

PLAIN_FIXED_POS_COLUMN_NUM 🔒

Number of columns that have fixed positions.