How Many Rows Can a Single MySQL SELECT Return? Exploring max_allowed_packet and Row Size Limits

This article investigates how many records a plain SELECT * query can return in MySQL 8 by examining max_allowed_packet, packet definitions, single‑row size limits, column count restrictions, InnoDB row formats, and practical experiments that reveal the real constraints on query result size.

InnoDBSQL query limitmax_allowed_packet

0 likes · 14 min read

How Many Rows Can a Single MySQL SELECT Return? Exploring max_allowed_packet and Row Size Limits