云数据库 GAUSSDB-案例:调整查询重写GUC参数rewrite_rule:案例环境准备
时间:2025-06-03 09:37:43
案例环境准备
为了便于规则的使用场景演示,需准备建表语句如下:
--清理环境 DROP SCHEMA IF EXISTS rewrite_rule_guc_test CASCADE; CREATE SCHEMA rewrite_rule_guc_test; SET current_schema=rewrite_rule_guc_test; --创建测试表 CREATE TABLE t(c1 INT, c2 INT, c3 INT, c4 INT); CREATE TABLE t1(c1 INT, c2 INT, c3 INT, c4 INT); CREATE TABLE t2(c1 INT, c2 INT, c3 INT, c4 INT);
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