PostgreSQL查询优化器详解（物理优化篇）
查询复制SELECT A+B FROM TEST_A WHERE A > 1; SELECT A+B FROM TEST_A WHERE A > 100000000; 1.2.
查询复制SELECT A+B FROM TEST_A WHERE A > 1; SELECT A+B FROM TEST_A WHERE A > 100000000; 1.2.
查询复制SELECT A+B FROM TEST_A WHERE A > 1; SELECT A+B FROM TEST_A WHERE A > 100000000; 1.2.