因为数据类型成功插入后,查询出来值可能和你插入的值不一样,原因是长度截断和四舍五入。 精确类型不会发生截断且如果超长了直接报错,主要插入成功了,查出来的一定等于插入的结果。 看下具体例子: real:【不精确类型】【定长类型】PG10:六位有效数字,会四舍五入(PG14八位有效数字) 代码语言:javascript 代码运行次...
id | integer | name | character varying(20) | gender | boolean | join_date | date | dept | character(4) | Indexes: "idx_join_date_test" btree (join_date) "idx_test" btree (id) david=# select count(1) from test; count --- 1835008 (1 row) david=# 查看david 数据库大小 david...
我们把int4和int8放在一个操作符族下,然后: ALTEROPERATORFAMILY integer_ops USING btree ADD -- 跨类型比较 int8 vs int4OPERATOR1< (int8, int4) ,OPERATOR2<= (int8, int4) ,OPERATOR3= (int8, int4) ,OPERATOR4>= (int8, int4) ,OPERATOR5> (int8, int4) ,FUNCTION1btint84cmp(int8,...
要使用此功能,请在行数据中包含一个JSONB列,该列通过在一级深度下包含多个Json对象来存储多个不同属性集。JSONB中的键和值将被编码为要素属性。...如果未指定或为NULL,则第一个有效数据类型(smallint, integer, bigint)的列将作为要素ID列,其他的列作为要素属性列。
Fixed an issue in AVG aggregates which led to the termination of the connection for some integer datatypes. The index_id and indid column for respective views now returns the same value for indexes belonging to same object and the index_id is unique only within the object. Fixed an issue ...
%if !%intdatetimes --disable-integer-datetimes \ %endif %if %disablepgfts --disable-thread-safety \ %endif %if %uuid --with-ossp-uuid \ %endif %if %xml --with-libxml \ --with-libxslt \ %endif %if %ldap --with-ldap \ %endif --with-system-tzdata=%{_datadir}/zoneinfo \ -...
pg_catalog | hashfloat4 |integer|real| normal pg_catalog | hashfloat8 |integer|doubleprecision| normal pg_catalog | hashinet |integer|inet| normal pg_catalog | hashint2 |integer|smallint| normal pg_catalog | hashint4 |integer|integer| normal ...
3. 支持的分区字段类型包括int, float, date, 以及其他常用类型,包括自定义的domain。 Support for integer, floating point, date and other types, including domains; 4. 通过CUSTOM SCAN实现了有效的分区表JOIN, 子查询过滤分区。 Effective query planning for partitioned tables (JOINs, subselects etc); ...
Type modifier should be int32 not uint32 Sep 22, 2018 pgproto3 Add SCRAM authentication Apr 17, 2019 pgtype support binding of []int type to array integer Jan 15, 2019 stdlib [stdlib] Add support for creating a DB from pgx.Pool ...
createBigintTypeParser interval Produces interval in seconds (integer). createIntervalTypeParser numeric Produces a float. createNumericTypeParser timestamp Produces a unix timestamp (in milliseconds). createTimestampTypeParser timestamptz Produces a unix timestamp (in milliseconds). createTimestampWithTi...