pg_catalog | = | smallint | integer | boolean | int24eq | equal pg_catalog | = | smallint | smallint | boolean | int2eq | equal pg_catalog | = | text | name | boolean | texteqname | equal pg_catalog | = | text | text | boolean | texteq | equal pg_catalog | = | ti...
> greater than <= less than or equal to >= greater than or equal to = equal <> not equal 官方文档中也有相关说明 JSON JOSNB 支持的操作符号 仅仅在JSONB中支持的操作符 关于JSONB 的 function 的可以单独写一期。
=equalARRAY[1.1,2.1,3.1]::int[] = ARRAY[1,2,3]t <>not equalARRAY[1,2,3] <> ARRAY[1,2,4]t <less thanARRAY[1,2,3] < ARRAY[1,2,4]t >greater thanARRAY[1,4,3] > ARRAY[1,2,4]t <=less than or equalARRAY[1,2,3] <= ARRAY[1,2,3]t >=greater than or equalARRAY[...
wal_buffers (integer) The amount of shared memory used for WAL data that has not yet been written to disk. The default setting of -1 selects a size equal to 1/32nd (about 3%) of shared_buffers, but not less than 64kB nor more than the size of one WAL segment, typically 16MB. Th...
aNOT a TRUE FALSE FALSE TRUE NULL NULL 比较运算 a BETWEEN x AND y a >= x AND a <= y a NOT BETWEEN x AND y a < x OR a > y 比较操作符 OperatorDescription < less than | greater than <=| less than or equal to =| greater than or equal to =| equal <> or !=| not equ...
But it’s one more reason not to expose PostgreSQL’s port to the public. There are others: You open yourself up to a DDOS attack on the database itself. PostgreSQL is not hard to do a DOS attack on, since each incoming connection forks a new process. ...
The key word ILIKE can be used instead of LIKE to make the match case-insensitive according to the active locale. This is not in the SQL standard but is a PostgreSQL The operator ~~ is equivalent to LIKE, and ~~* corresponds to ILIKE. There are al...
ssl_opts will be passed as is to ssl:connect/3. tcp_opts will be passed as is to gen_tcp:connect/3. Some options are forbidden, such as mode, packet, header, active. When tcp_opts is not provided, epgsql does some tuning (eg, sets TCP keepalive and auto-tunes buffer), but when...
NAME Ora2Pg - Oracle to PostgreSQL database schema converter DESCRIPTION Ora2Pg is a free tool used to migrate an Oracle database to a PostgreSQL compatible schema. It connects your Oracle database, scans it automatically and extracts its structure or data, then generates SQL scripts that you...
closed this asnot plannedon Apr 29, 2023 gregturn added status: invalidAn issue that we don't feel is valid on Apr 29, 2023 agorodetskaya commentedon Apr 8, 2024 agorodetskaya After a 6 hours of useless brain suffering i manage to do this (just example): ...