EFFICIENT COMPUTATION OVER A WIDE TABLE
개요
발명자
Suraj P. Acharya; Yimeng Li; Raghavendran Ramakrishnan; Chao Tan; Yunqiao Zhang
IPC 분류
CPC 분류
Embodiments of the present disclosure provide techniques for efficient computation over a wide table. A processing device determines that a first number of columns of a first table is greater than a threshold number of columns. The processing device transforms the first table into a second table based on the determination, where the second table includes a second number of columns that is less than the first number of columns, and where the second table includes a first column that includes first fields that identify columns of the first table, a second column that includes second fields that identify data types of fields of the first table, and a third column that includes third fields that include data of the fields of the first table. The processing device executes a UDTF on the second table.
원문 (중국어)
Embodiments of the present disclosure provide techniques for efficient computation over a wide table. A processing device determines that a first number of columns of a first table is greater than a threshold number of columns. The processing device transforms the first table into a second table based on the determination, where the second table includes a second number of columns that is less than the first number of columns, and where the second table includes a first column that includes first fields that identify columns of the first table, a second column that includes second fields that identify data types of fields of the first table, and a third column that includes third fields that include data of the fields of the first table. The processing device executes a UDTF on the second table.