'contains' 'lexeme' 'quote' 'the' (1 row) 词条位置常量也可以放到词汇中: 1 2 3 4 5 SELECT 'a:1 fat:2 cat:3 sat:4 on:5 a:6 mat:7 and:8 ate:9 a:10 fat:11 rat:12'::tsvector;
'contains' 'lexeme' 'quote' 'the' (1 row) 词条位置常量也可以放到词汇中: 1 2 3 4 5 SELECT 'a:1 fat:2 cat:3 sat:4 on:5 a:6 mat:7 and:8 ate:9 a:10 fat:11 rat:12'::tsvector;
arrint.extend(3); gaussdb$# dbe_output.print_line(arrint.count); gaussdb$# end; gaussdb$# / 0 3 ANONYMOUS BLOCK EXECUTE 示例3:开启varray_comp
描述:替换子串。 返回值类型:bytea 示例: 1 2 3 4 5 openGauss=# SELECT overlay(E'Th\\000omas'::bytea placing E'\\002\\003'::bytea from 2 for 3) AS RESULT; result
描述:替换子串。 返回值类型:bytea 示例: 1 2 3 4 5 openGauss=# SELECT overlay(E'Th\\000omas'::bytea placing E'\\002\\003'::bytea from 2 for 3) AS RESULT; result
"api_url" : "https://d566c7efafe04a26a83d3a8475602ee3.apig.xxxxxx.com/v1/infers/456963f1-737c-4de0-8bee-5b4f6f3a8fa3", "api_path" : "/v1/infers/456
3 | 7 25 | 7 7 | 7 (19 rows) ANY/SOME ANY/SOME的语法图请参见图3。 图3 any/some::=
3 | 7 25 | 7 7 | 7 (19 rows) ANY/SOME ANY/SOME的语法图请参见图3。 图3 any/some::=
3 | 7 25 | 7 7 | 7 (19 rows) ANY/SOME ANY/SOME的语法图请参见图3。 图3 any/some::=
--创建表。 gaussdb=# CREATE TABLE t1(c1 int, c2 int, c3 int); gaussdb=# CREATE TABLE t2(c1 int, c2 int, c3 int); gaussdb=# CREATE INDEX it1 ON t1(c1,c2);
openGauss=# SELECT * FROM mv; c1 | c2 ----+---- 1 | 1 2 | 2 3 | 3 (3 rows) --插入数据。 openGauss=# INSERT INTO t1 VALUES(4, 4); INSERT 0 1
openGauss=# SELECT * FROM mv; c1 | c2 ----+---- 1 | 1 2 | 2 3 | 3 (3 rows) -- 插入数据 openGauss=# INSERT INTO t1 VALUES(4, 4); INSERT 0 1
示例: 1 2 3 4 5 SELECT lower(numrange(1.1,2.2)) AS RESULT; result -------- 1.1 (1 row) upper(anyrange) 描述:范围的上界 返回类型:范围元素类型 示例: 1 2 3 4 5 SELECT
描述:生成一系列包括给定数组的下标。 返回值类型:setof int 示例: 1 2 3 4 5 6 7 8 SELECT generate_subscripts('{NULL,1,NULL,2}'::int[], 1) AS s; s --- 1 2 3 4 (4 rows) generate_subscripts(array
gaussdb=# SELECT * FROM mv; c1 | c2 ----+---- 1 | 1 2 | 2 3 | 3 (3 rows) --插入数据。 gaussdb=# INSERT INTO t1 VALUES(4, 4); INSERT 0 1
gaussdb=# SELECT * FROM mv; c1 | c2 ----+---- 1 | 1 2 | 2 3 | 3 (3 rows) -- 插入数据 gaussdb=# INSERT INTO t1 VALUES(4, 4); INSERT 0 1
示例: 1 2 3 4 5 SELECT lower(numrange(1.1,2.2)) AS RESULT; result -------- 1.1 (1 row) upper(anyrange) 描述:范围的上界 返回类型:范围元素类型 示例: 1 2 3 4 5 SELECT
描述:生成一系列包括给定数组的下标。 返回值类型:setof int 示例: 1 2 3 4 5 6 7 8 SELECT generate_subscripts('{NULL,1,NULL,2}'::int[], 1) AS s; s --- 1 2 3 4 (4 rows) generate_subscripts(array
TABLE partitiontest ADD PARTITION p3 start(120)end(130), DROP PARTITION p2; ERROR: start value of partition "p3" NOT EQUAL up-boundary of last partition
示例: 1 2 3 4 5 SELECT lower(numrange(1.1,2.2)) AS RESULT; result -------- 1.1 (1 row) upper(anyrange) 描述:范围的上界 返回类型:范围元素类型 示例: 1 2 3 4 5 SELECT