v_table_ddl :=v_table_ddl||';'||E'\n';-- suffix create statement with all of the indexes on the tableFORv_index_recordINSELECTregexp_replace(indexdef,' "?'||schemaname||'"?\.',' ')ASindexdefFROMpg_catalog.pg_indexesWHERE(schemaname, tablename)=(in_schema_name, in_table_name...
concat(string_agg(coldef.col_create_sql, E',\n ') , (select concat(E',\n ',pg_get_constraintdef(oid)) from pg_constraint where contype='p' and conrelid = coldef.oid)) as cols_create_sql
1CREATEORREPLACEFUNCTION"public"."showcreatetable"("dbinstancename"varchar, "namespace"varchar, "tablename"varchar, "tenantid"varchar)2RETURNS"pg_catalog"."varchar"AS$BODY$3declare4tableScriptcharactervaryingdefault'';5indexScripecharactervaryingdefault'';6constraintScripecharactervaryingdefault'';7p_name...
(crontab -l2>/dev/null;echo"0 14 * * * bash /tmp/create_part.sh ")|crontab- 使用数据库内置调度器,如 pg_cron、pg_timetable 以pg_cron 为例,每天下午14点创建次日的分区表: CREATE OR REPLACE FUNCTION create_tab_part()RETURNS integer LANGUAGEplpgsql AS $$ DECLARE dateStr varchar; BEGIN S...
CREATE OR REPLACE FUNCTION "public"."f_inittables1"(arr _text)RETURNS "pg_catalog"."void" AS $BODY$DECLAREscount INTEGER;rownum integer := 1;currsnum text;strSQL text;BEGINscount:=array_length(arr,1);while rownum <= scount LOOPcurrsnum:=arr[rownum];RAISE NOTICE '这里是%', currsnum...
alter table c3 add constraint ck check (crt_time>='2018-06-04' and crt_time<'2018-07-04'); 4.对于每个分区,在关键字段上创建索引。 (可选操作,由于索引不继承,因此根据需要选择性创建索引) 5.创建触发器调用的函数。 create or replace function ins_tg() returns trigger as $$ ...
FROM table1 LEFT JOIN table2 ON table1.column_name=table2.column_name; 6.创建一个自定义函数返回物流表中的所有省数据,并调用自定义函数查询所有省数据; 说明: create or replace functionss()// 建一个名字为ss的自定义函数 returnsvarcharas// returns 理解为返回一个xxxx类型的结果;xxxx是返回的字段的...
createtabletbl (idint,infotext, crt_timetimestamp); 2、创建分区表,增加约束 do language plpgsql $$ declare partsint:= 4; begin for i in 0..parts-1 loopexecuteformat('create table tbl%s (like tbl including all) inherits (tbl)', i);executeformat('alter table tbl%saddconstraint ck check...
1. CREATE OR REPLACE VIEW 按照"CREATE OR REPLACE VIEW" 关键字搜索,这部分代码在ATExecCmd函数(tablecmds.c文件)。可以看到它对应的命令类型叫AT_AddColumnToView,对应操作为调用ATExecAddColumn函数为视图新加列。 /* * ATExecCmd: dispatch a subcommand to appropriate execution routine ...
在mysql 中show create table 可以直接查询表的create sql 语句,在postgreSQL 没有这个命令,所以通过function 来实现,代码如下: 前提 定义一个公用的函数:findattname CREATE OR REPLACE FUNCTION findattname(namespace character varying, tablename character varying, ctype character varying) ...