PostgreSQL 12.17 DocumentationTEMPORARY T DATABASE EXECUTE X FUNCTION, PROCEDURE USAGE U DOMAIN, FOREIGN DATA WRAPPER, FOREIGN SERV- ER, LANGUAGE, SCHEMA, SE- QUENCE, TYPE Table 5.2 summarizes the privileges available for each type of proximations, so that storing and retrieving a value might show slight discrepancies. Managing these er- rors and how they propagate through calculations is the subject of an entire branch of mathematics set an element of an array constant to NULL, write NULL for the element value. (Any upper- or low- er-case variant of NULL will do.) If you want an actual string value “NULL”, you must put double quotes0 码力 | 2943 页 | 12.61 MB | 1 年前3
PostgreSQL 12.17 Documentationstarts (“forks”) a new process for each connection. From that point on, the client and the new serv- er process communicate without intervention by the original postgres process. Thus, the master server TEMPORARY T DATABASE EXECUTE X FUNCTION, PROCEDURE USAGE U DOMAIN, FOREIGN DATA WRAPPER, FOREIGN SERV- ER, LANGUAGE, SCHEMA, SE- QUENCE, TYPE Table 5.2 summarizes the privileges available for each type of Object Identifier Types Name References Description Value Example oid any numeric object identifi- er 564182 regproc pg_proc function name sum regprocedure pg_proc function with argument types sum(int4)0 码力 | 2786 页 | 12.72 MB | 1 年前3
PostgreSQL 11.22 Documentationstarts (“forks”) a new process for each connection. From that point on, the client and the new serv- er process communicate without intervention by the original postgres process. Thus, the master server Object Identifier Types Name References Description Value Example oid any numeric object identifi- er 564182 regproc pg_proc function name sum regprocedure pg_proc function with argument types sum(int4) returns a null- terminated C string. internal Indicates that a function accepts or returns a serv- er-internal data type. language_handler A procedural language call handler is declared to return language_handler0 码力 | 2732 页 | 12.44 MB | 1 年前3
PostgreSQL 10.23 Documentationproximations, so that storing and retrieving a value might show slight discrepancies. Managing these er- rors and how they propagate through calculations is the subject of an entire branch of mathematics set an element of an array constant to NULL, write NULL for the element value. (Any upper- or low- er-case variant of NULL will do.) If you want an actual string value “NULL”, you must put double quotes null. Also, null is returned if a subscript is outside the array bounds (this case does not raise an er- ror). For example, if schedule currently has the dimensions [1:3][1:2] then referencing sched- ule[3][3]0 码力 | 2727 页 | 11.93 MB | 1 年前3
PostgreSQL 10.23 Documentationstarts (“forks”) a new process for each connection. From that point on, the client and the new serv- er process communicate without intervention by the original postgres process. Thus, the master server Object Identifier Types Name References Description Value Example oid any numeric object identifi- er 564182 regproc pg_proc function name sum regprocedure pg_proc function with argument types sum(int4) returns a null- terminated C string. internal Indicates that a function accepts or returns a serv- er-internal data type. language_handler A procedural language call handler is declared to return language_handler0 码力 | 2590 页 | 12.03 MB | 1 年前3
PostgreSQL 11.22 Documentationproximations, so that storing and retrieving a value might show slight discrepancies. Managing these er- rors and how they propagate through calculations is the subject of an entire branch of mathematics set an element of an array constant to NULL, write NULL for the element value. (Any upper- or low- er-case variant of NULL will do.) If you want an actual string value “NULL”, you must put double quotes null. Also, null is returned if a subscript is outside the array bounds (this case does not raise an er- ror). For example, if schedule currently has the dimensions [1:3][1:2] then referencing sched- ule[3][3]0 码力 | 2883 页 | 12.34 MB | 1 年前3
PostgreSQL 17beta1 US Documentationproximations, so that storing and retrieving a value might show slight discrepancies. Managing these er- rors and how they propagate through calculations is the subject of an entire branch of mathematics set an element of an array constant to NULL, write NULL for the element value. (Any upper- or low- er-case variant of NULL will do.) If you want an actual string value “NULL”, you must put double quotes null. Also, null is returned if a subscript is outside the array bounds (this case does not raise an er- ror). For example, if schedule currently has the dimensions [1:3][1:2] then referencing sched- ule[3][3]0 码力 | 3188 页 | 14.32 MB | 1 年前3
PostgreSQL 16.1 Documentationproximations, so that storing and retrieving a value might show slight discrepancies. Managing these er- rors and how they propagate through calculations is the subject of an entire branch of mathematics set an element of an array constant to NULL, write NULL for the element value. (Any upper- or low- er-case variant of NULL will do.) If you want an actual string value “NULL”, you must put double quotes null. Also, null is returned if a subscript is outside the array bounds (this case does not raise an er- ror). For example, if schedule currently has the dimensions [1:3][1:2] then referencing sched- ule[3][3]0 码力 | 3133 页 | 14.10 MB | 1 年前3
PostgreSQL 15.5 Documentationproximations, so that storing and retrieving a value might show slight discrepancies. Managing these er- rors and how they propagate through calculations is the subject of an entire branch of mathematics set an element of an array constant to NULL, write NULL for the element value. (Any upper- or low- er-case variant of NULL will do.) If you want an actual string value “NULL”, you must put double quotes null. Also, null is returned if a subscript is outside the array bounds (this case does not raise an er- ror). For example, if schedule currently has the dimensions [1:3][1:2] then referencing sched- ule[3][3]0 码力 | 3073 页 | 13.49 MB | 1 年前3
PostgreSQL 14.10 Documentationproximations, so that storing and retrieving a value might show slight discrepancies. Managing these er- rors and how they propagate through calculations is the subject of an entire branch of mathematics set an element of an array constant to NULL, write NULL for the element value. (Any upper- or low- er-case variant of NULL will do.) If you want an actual string value “NULL”, you must put double quotes null. Also, null is returned if a subscript is outside the array bounds (this case does not raise an er- ror). For example, if schedule currently has the dimensions [1:3][1:2] then referencing sched- ule[3][3]0 码力 | 3032 页 | 13.27 MB | 1 年前3
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