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src/include/catalog/pg_cast.dat
597 строк
31 KB
Masahiko Sawada
Allow explicit casting between bytea and uuid.
19 мар 2026, 23:51
19 мар 2026, 23:51
ba21f5b
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#---------------------------------------------------------------------- # # pg_cast.dat # Initial contents of the pg_cast system catalog. # # Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group # Portions Copyright (c) 1994, Regents of the University of California # # src/include/catalog/pg_cast.dat # #---------------------------------------------------------------------- [ # Note: this table has OIDs, but we don't bother to assign them manually, # since nothing needs to know the specific OID of any built-in cast. # Numeric category: implicit casts are allowed in the direction # int2->int4->int8->numeric->float4->float8, while casts in the # reverse direction are assignment-only. { castsource => 'int8', casttarget => 'int2', castfunc => 'int2(int8)', castcontext => 'a', castmethod => 'f' }, { castsource => 'int8', casttarget => 'int4', castfunc => 'int4(int8)', castcontext => 'a', castmethod => 'f' }, { castsource => 'int8', casttarget => 'float4', castfunc => 'float4(int8)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int8', casttarget => 'float8', castfunc => 'float8(int8)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int8', casttarget => 'numeric', castfunc => 'numeric(int8)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'int8', castfunc => 'int8(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'int4', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'float4', castfunc => 'float4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'float8', castfunc => 'float8(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'numeric', castfunc => 'numeric(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'int8', castfunc => 'int8(int4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'int2', castfunc => 'int2(int4)', castcontext => 'a', castmethod => 'f' }, { castsource => 'int4', casttarget => 'float4', castfunc => 'float4(int4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'float8', castfunc => 'float8(int4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'numeric', castfunc => 'numeric(int4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'float4', casttarget => 'int8', castfunc => 'int8(float4)', castcontext => 'a', castmethod => 'f' }, { castsource => 'float4', casttarget => 'int2', castfunc => 'int2(float4)', castcontext => 'a', castmethod => 'f' }, { castsource => 'float4', casttarget => 'int4', castfunc => 'int4(float4)', castcontext => 'a', castmethod => 'f' }, { castsource => 'float4', casttarget => 'float8', castfunc => 'float8(float4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'float4', casttarget => 'numeric', castfunc => 'numeric(float4)', castcontext => 'a', castmethod => 'f' }, { castsource => 'float8', casttarget => 'int8', castfunc => 'int8(float8)', castcontext => 'a', castmethod => 'f' }, { castsource => 'float8', casttarget => 'int2', castfunc => 'int2(float8)', castcontext => 'a', castmethod => 'f' }, { castsource => 'float8', casttarget => 'int4', castfunc => 'int4(float8)', castcontext => 'a', castmethod => 'f' }, { castsource => 'float8', casttarget => 'float4', castfunc => 'float4(float8)', castcontext => 'a', castmethod => 'f' }, { castsource => 'float8', casttarget => 'numeric', castfunc => 'numeric(float8)', castcontext => 'a', castmethod => 'f' }, { castsource => 'numeric', casttarget => 'int8', castfunc => 'int8(numeric)', castcontext => 'a', castmethod => 'f' }, { castsource => 'numeric', casttarget => 'int2', castfunc => 'int2(numeric)', castcontext => 'a', castmethod => 'f' }, { castsource => 'numeric', casttarget => 'int4', castfunc => 'int4(numeric)', castcontext => 'a', castmethod => 'f' }, { castsource => 'numeric', casttarget => 'float4', castfunc => 'float4(numeric)', castcontext => 'i', castmethod => 'f' }, { castsource => 'numeric', casttarget => 'float8', castfunc => 'float8(numeric)', castcontext => 'i', castmethod => 'f' }, { castsource => 'money', casttarget => 'numeric', castfunc => 'numeric(money)', castcontext => 'a', castmethod => 'f' }, { castsource => 'numeric', casttarget => 'money', castfunc => 'money(numeric)', castcontext => 'a', castmethod => 'f' }, { castsource => 'int4', casttarget => 'money', castfunc => 'money(int4)', castcontext => 'a', castmethod => 'f' }, { castsource => 'int8', casttarget => 'money', castfunc => 'money(int8)', castcontext => 'a', castmethod => 'f' }, # Allow explicit coercions between int4 and bool { castsource => 'int4', casttarget => 'bool', castfunc => 'bool(int4)', castcontext => 'e', castmethod => 'f' }, { castsource => 'bool', casttarget => 'int4', castfunc => 'int4(bool)', castcontext => 'e', castmethod => 'f' }, # Allow explicit coercions between xid8 and xid { castsource => 'xid8', casttarget => 'xid', castfunc => 'xid(xid8)', castcontext => 'e', castmethod => 'f' }, # OID category: allow implicit conversion from any integral type (including # int8, to support OID literals > 2G) to OID, as well as assignment coercion # from OID to int4 or int8. Similarly for each OID-alias type. Also allow # implicit coercions between OID and each OID-alias type, as well as # regproc<->regprocedure and regoper<->regoperator. (Other coercions # between alias types must pass through OID.) Lastly, there are implicit # casts from text and varchar to regclass, which exist mainly to support # legacy forms of nextval() and related functions. { castsource => 'int8', casttarget => 'oid', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'oid', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'oid', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'oid', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regproc', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regproc', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regproc', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regproc', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regproc', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regproc', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regproc', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'regproc', casttarget => 'regprocedure', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regprocedure', casttarget => 'regproc', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regprocedure', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regprocedure', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regprocedure', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regprocedure', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regprocedure', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regprocedure', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regprocedure', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regoper', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regoper', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regoper', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regoper', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regoper', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regoper', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regoper', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'regoper', casttarget => 'regoperator', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regoperator', casttarget => 'regoper', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regoperator', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regoperator', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regoperator', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regoperator', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regoperator', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regoperator', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regoperator', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regclass', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regclass', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regclass', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regclass', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regclass', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regclass', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regclass', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regcollation', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regcollation', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regcollation', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regcollation', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regcollation', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regcollation', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regcollation', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regtype', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regtype', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regtype', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regtype', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regtype', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regtype', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regtype', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regconfig', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regconfig', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regconfig', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regconfig', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regconfig', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regconfig', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regconfig', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regdictionary', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regdictionary', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regdictionary', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regdictionary', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regdictionary', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regdictionary', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regdictionary', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'text', casttarget => 'regclass', castfunc => 'regclass', castcontext => 'i', castmethod => 'f' }, { castsource => 'varchar', casttarget => 'regclass', castfunc => 'regclass', castcontext => 'i', castmethod => 'f' }, { castsource => 'oid', casttarget => 'regrole', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regrole', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regrole', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regrole', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regrole', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regrole', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regrole', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regnamespace', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regnamespace', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regnamespace', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regnamespace', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regnamespace', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regnamespace', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regnamespace', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'oid', casttarget => 'regdatabase', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regdatabase', casttarget => 'oid', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int8', casttarget => 'regdatabase', castfunc => 'oid', castcontext => 'i', castmethod => 'f' }, { castsource => 'int2', casttarget => 'regdatabase', castfunc => 'int4(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'regdatabase', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'regdatabase', casttarget => 'int8', castfunc => 'int8(oid)', castcontext => 'a', castmethod => 'f' }, { castsource => 'regdatabase', casttarget => 'int4', castfunc => '0', castcontext => 'a', castmethod => 'b' }, # OID8 category: allow implicit conversion from any integral type (including # int8), as well as assignment coercion to int8. { castsource => 'int8', casttarget => 'oid8', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'int2', casttarget => 'oid8', castfunc => 'int8(int2)', castcontext => 'i', castmethod => 'f' }, { castsource => 'int4', casttarget => 'oid8', castfunc => 'int8(int4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'oid8', casttarget => 'int8', castfunc => '0', castcontext => 'a', castmethod => 'b' }, # Assignment coercion from oid to oid8. { castsource => 'oid', casttarget => 'oid8', castfunc => 'oid8(oid)', castcontext => 'a', castmethod => 'f' }, # String category { castsource => 'text', casttarget => 'bpchar', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'text', casttarget => 'varchar', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'bpchar', casttarget => 'text', castfunc => 'text(bpchar)', castcontext => 'i', castmethod => 'f' }, { castsource => 'bpchar', casttarget => 'varchar', castfunc => 'text(bpchar)', castcontext => 'i', castmethod => 'f' }, { castsource => 'varchar', casttarget => 'text', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'varchar', casttarget => 'bpchar', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'char', casttarget => 'text', castfunc => 'text(char)', castcontext => 'i', castmethod => 'f' }, { castsource => 'char', casttarget => 'bpchar', castfunc => 'bpchar(char)', castcontext => 'a', castmethod => 'f' }, { castsource => 'char', casttarget => 'varchar', castfunc => 'text(char)', castcontext => 'a', castmethod => 'f' }, { castsource => 'name', casttarget => 'text', castfunc => 'text(name)', castcontext => 'i', castmethod => 'f' }, { castsource => 'name', casttarget => 'bpchar', castfunc => 'bpchar(name)', castcontext => 'a', castmethod => 'f' }, { castsource => 'name', casttarget => 'varchar', castfunc => 'varchar(name)', castcontext => 'a', castmethod => 'f' }, { castsource => 'text', casttarget => 'char', castfunc => 'char(text)', castcontext => 'a', castmethod => 'f' }, { castsource => 'bpchar', casttarget => 'char', castfunc => 'char(text)', castcontext => 'a', castmethod => 'f' }, { castsource => 'varchar', casttarget => 'char', castfunc => 'char(text)', castcontext => 'a', castmethod => 'f' }, { castsource => 'text', casttarget => 'name', castfunc => 'name(text)', castcontext => 'i', castmethod => 'f' }, { castsource => 'bpchar', casttarget => 'name', castfunc => 'name(bpchar)', castcontext => 'i', castmethod => 'f' }, { castsource => 'varchar', casttarget => 'name', castfunc => 'name(varchar)', castcontext => 'i', castmethod => 'f' }, # Allow explicit coercions between bytea and integer types { castsource => 'int2', casttarget => 'bytea', castfunc => 'bytea(int2)', castcontext => 'e', castmethod => 'f' }, { castsource => 'int4', casttarget => 'bytea', castfunc => 'bytea(int4)', castcontext => 'e', castmethod => 'f' }, { castsource => 'int8', casttarget => 'bytea', castfunc => 'bytea(int8)', castcontext => 'e', castmethod => 'f' }, { castsource => 'bytea', casttarget => 'int2', castfunc => 'int2(bytea)', castcontext => 'e', castmethod => 'f' }, { castsource => 'bytea', casttarget => 'int4', castfunc => 'int4(bytea)', castcontext => 'e', castmethod => 'f' }, { castsource => 'bytea', casttarget => 'int8', castfunc => 'int8(bytea)', castcontext => 'e', castmethod => 'f' }, # Allow explicit coercions between bytea and uuid type { castsource => 'bytea', casttarget => 'uuid', castfunc => 'uuid(bytea)', castcontext => 'e', castmethod => 'f' }, { castsource => 'uuid', casttarget => 'bytea', castfunc => 'bytea(uuid)', castcontext => 'e', castmethod => 'f' }, # Allow explicit coercions between int4 and "char" { castsource => 'char', casttarget => 'int4', castfunc => 'int4(char)', castcontext => 'e', castmethod => 'f' }, { castsource => 'int4', casttarget => 'char', castfunc => 'char(int4)', castcontext => 'e', castmethod => 'f' }, # pg_node_tree can be coerced to, but not from, text { castsource => 'pg_node_tree', casttarget => 'text', castfunc => '0', castcontext => 'i', castmethod => 'b' }, # pg_ndistinct can be coerced to, but not from, bytea and text { castsource => 'pg_ndistinct', casttarget => 'bytea', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'pg_ndistinct', casttarget => 'text', castfunc => '0', castcontext => 'i', castmethod => 'i' }, # pg_dependencies can be coerced to, but not from, bytea and text { castsource => 'pg_dependencies', casttarget => 'bytea', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'pg_dependencies', casttarget => 'text', castfunc => '0', castcontext => 'i', castmethod => 'i' }, # pg_mcv_list can be coerced to, but not from, bytea and text { castsource => 'pg_mcv_list', casttarget => 'bytea', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'pg_mcv_list', casttarget => 'text', castfunc => '0', castcontext => 'i', castmethod => 'i' }, # Datetime category { castsource => 'date', casttarget => 'timestamp', castfunc => 'timestamp(date)', castcontext => 'i', castmethod => 'f' }, { castsource => 'date', casttarget => 'timestamptz', castfunc => 'timestamptz(date)', castcontext => 'i', castmethod => 'f' }, { castsource => 'time', casttarget => 'interval', castfunc => 'interval(time)', castcontext => 'i', castmethod => 'f' }, { castsource => 'time', casttarget => 'timetz', castfunc => 'timetz(time)', castcontext => 'i', castmethod => 'f' }, { castsource => 'timestamp', casttarget => 'date', castfunc => 'date(timestamp)', castcontext => 'a', castmethod => 'f' }, { castsource => 'timestamp', casttarget => 'time', castfunc => 'time(timestamp)', castcontext => 'a', castmethod => 'f' }, { castsource => 'timestamp', casttarget => 'timestamptz', castfunc => 'timestamptz(timestamp)', castcontext => 'i', castmethod => 'f' }, { castsource => 'timestamptz', casttarget => 'date', castfunc => 'date(timestamptz)', castcontext => 'a', castmethod => 'f' }, { castsource => 'timestamptz', casttarget => 'time', castfunc => 'time(timestamptz)', castcontext => 'a', castmethod => 'f' }, { castsource => 'timestamptz', casttarget => 'timestamp', castfunc => 'timestamp(timestamptz)', castcontext => 'a', castmethod => 'f' }, { castsource => 'timestamptz', casttarget => 'timetz', castfunc => 'timetz(timestamptz)', castcontext => 'a', castmethod => 'f' }, { castsource => 'interval', casttarget => 'time', castfunc => 'time(interval)', castcontext => 'a', castmethod => 'f' }, { castsource => 'timetz', casttarget => 'time', castfunc => 'time(timetz)', castcontext => 'a', castmethod => 'f' }, # Geometric category { castsource => 'point', casttarget => 'box', castfunc => 'box(point)', castcontext => 'a', castmethod => 'f' }, { castsource => 'lseg', casttarget => 'point', castfunc => 'point(lseg)', castcontext => 'e', castmethod => 'f' }, { castsource => 'path', casttarget => 'polygon', castfunc => 'polygon(path)', castcontext => 'a', castmethod => 'f' }, { castsource => 'box', casttarget => 'point', castfunc => 'point(box)', castcontext => 'e', castmethod => 'f' }, { castsource => 'box', casttarget => 'lseg', castfunc => 'lseg(box)', castcontext => 'e', castmethod => 'f' }, { castsource => 'box', casttarget => 'polygon', castfunc => 'polygon(box)', castcontext => 'a', castmethod => 'f' }, { castsource => 'box', casttarget => 'circle', castfunc => 'circle(box)', castcontext => 'e', castmethod => 'f' }, { castsource => 'polygon', casttarget => 'point', castfunc => 'point(polygon)', castcontext => 'e', castmethod => 'f' }, { castsource => 'polygon', casttarget => 'path', castfunc => 'path', castcontext => 'a', castmethod => 'f' }, { castsource => 'polygon', casttarget => 'box', castfunc => 'box(polygon)', castcontext => 'e', castmethod => 'f' }, { castsource => 'polygon', casttarget => 'circle', castfunc => 'circle(polygon)', castcontext => 'e', castmethod => 'f' }, { castsource => 'circle', casttarget => 'point', castfunc => 'point(circle)', castcontext => 'e', castmethod => 'f' }, { castsource => 'circle', casttarget => 'box', castfunc => 'box(circle)', castcontext => 'e', castmethod => 'f' }, { castsource => 'circle', casttarget => 'polygon', castfunc => 'polygon(circle)', castcontext => 'e', castmethod => 'f' }, # MAC address category { castsource => 'macaddr', casttarget => 'macaddr8', castfunc => 'macaddr8', castcontext => 'i', castmethod => 'f' }, { castsource => 'macaddr8', casttarget => 'macaddr', castfunc => 'macaddr', castcontext => 'i', castmethod => 'f' }, # INET category { castsource => 'cidr', casttarget => 'inet', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'inet', casttarget => 'cidr', castfunc => 'cidr', castcontext => 'a', castmethod => 'f' }, # BitString category { castsource => 'bit', casttarget => 'varbit', castfunc => '0', castcontext => 'i', castmethod => 'b' }, { castsource => 'varbit', casttarget => 'bit', castfunc => '0', castcontext => 'i', castmethod => 'b' }, # Cross-category casts between bit and int4, int8 { castsource => 'int8', casttarget => 'bit', castfunc => 'bit(int8,int4)', castcontext => 'e', castmethod => 'f' }, { castsource => 'int4', casttarget => 'bit', castfunc => 'bit(int4,int4)', castcontext => 'e', castmethod => 'f' }, { castsource => 'bit', casttarget => 'int8', castfunc => 'int8(bit)', castcontext => 'e', castmethod => 'f' }, { castsource => 'bit', casttarget => 'int4', castfunc => 'int4(bit)', castcontext => 'e', castmethod => 'f' }, # Cross-category casts to and from TEXT # We need entries here only for a few specialized cases where the behavior # of the cast function differs from the datatype's I/O functions. Otherwise, # parse_coerce.c will generate CoerceViaIO operations without any prompting. # Note that the castcontext values specified here should be no stronger than # parse_coerce.c's automatic casts ('a' to text, 'e' from text) else odd # behavior will ensue when the automatic cast is applied instead of the # pg_cast entry! { castsource => 'cidr', casttarget => 'text', castfunc => 'text(inet)', castcontext => 'a', castmethod => 'f' }, { castsource => 'inet', casttarget => 'text', castfunc => 'text(inet)', castcontext => 'a', castmethod => 'f' }, { castsource => 'bool', casttarget => 'text', castfunc => 'text(bool)', castcontext => 'a', castmethod => 'f' }, { castsource => 'xml', casttarget => 'text', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'text', casttarget => 'xml', castfunc => 'xml', castcontext => 'e', castmethod => 'f' }, # Cross-category casts to and from VARCHAR # We support all the same casts as for TEXT. { castsource => 'cidr', casttarget => 'varchar', castfunc => 'text(inet)', castcontext => 'a', castmethod => 'f' }, { castsource => 'inet', casttarget => 'varchar', castfunc => 'text(inet)', castcontext => 'a', castmethod => 'f' }, { castsource => 'bool', casttarget => 'varchar', castfunc => 'text(bool)', castcontext => 'a', castmethod => 'f' }, { castsource => 'xml', casttarget => 'varchar', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'varchar', casttarget => 'xml', castfunc => 'xml', castcontext => 'e', castmethod => 'f' }, # Cross-category casts to and from BPCHAR # We support all the same casts as for TEXT. { castsource => 'cidr', casttarget => 'bpchar', castfunc => 'text(inet)', castcontext => 'a', castmethod => 'f' }, { castsource => 'inet', casttarget => 'bpchar', castfunc => 'text(inet)', castcontext => 'a', castmethod => 'f' }, { castsource => 'bool', casttarget => 'bpchar', castfunc => 'text(bool)', castcontext => 'a', castmethod => 'f' }, { castsource => 'xml', casttarget => 'bpchar', castfunc => '0', castcontext => 'a', castmethod => 'b' }, { castsource => 'bpchar', casttarget => 'xml', castfunc => 'xml', castcontext => 'e', castmethod => 'f' }, # Length-coercion functions { castsource => 'bpchar', casttarget => 'bpchar', castfunc => 'bpchar(bpchar,int4,bool)', castcontext => 'i', castmethod => 'f' }, { castsource => 'varchar', casttarget => 'varchar', castfunc => 'varchar(varchar,int4,bool)', castcontext => 'i', castmethod => 'f' }, { castsource => 'time', casttarget => 'time', castfunc => 'time(time,int4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'timestamp', casttarget => 'timestamp', castfunc => 'timestamp(timestamp,int4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'timestamptz', casttarget => 'timestamptz', castfunc => 'timestamptz(timestamptz,int4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'interval', casttarget => 'interval', castfunc => 'interval(interval,int4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'timetz', casttarget => 'timetz', castfunc => 'timetz(timetz,int4)', castcontext => 'i', castmethod => 'f' }, { castsource => 'bit', casttarget => 'bit', castfunc => 'bit(bit,int4,bool)', castcontext => 'i', castmethod => 'f' }, { castsource => 'varbit', casttarget => 'varbit', castfunc => 'varbit', castcontext => 'i', castmethod => 'f' }, { castsource => 'numeric', casttarget => 'numeric', castfunc => 'numeric(numeric,int4)', castcontext => 'i', castmethod => 'f' }, # json to/from jsonb { castsource => 'json', casttarget => 'jsonb', castfunc => '0', castcontext => 'a', castmethod => 'i' }, { castsource => 'jsonb', casttarget => 'json', castfunc => '0', castcontext => 'a', castmethod => 'i' }, # jsonb to numeric and bool types { castsource => 'jsonb', casttarget => 'bool', castfunc => 'bool(jsonb)', castcontext => 'e', castmethod => 'f' }, { castsource => 'jsonb', casttarget => 'numeric', castfunc => 'numeric(jsonb)', castcontext => 'e', castmethod => 'f' }, { castsource => 'jsonb', casttarget => 'int2', castfunc => 'int2(jsonb)', castcontext => 'e', castmethod => 'f' }, { castsource => 'jsonb', casttarget => 'int4', castfunc => 'int4(jsonb)', castcontext => 'e', castmethod => 'f' }, { castsource => 'jsonb', casttarget => 'int8', castfunc => 'int8(jsonb)', castcontext => 'e', castmethod => 'f' }, { castsource => 'jsonb', casttarget => 'float4', castfunc => 'float4(jsonb)', castcontext => 'e', castmethod => 'f' }, { castsource => 'jsonb', casttarget => 'float8', castfunc => 'float8(jsonb)', castcontext => 'e', castmethod => 'f' }, # range to multirange { castsource => 'int4range', casttarget => 'int4multirange', castfunc => 'int4multirange(int4range)', castcontext => 'e', castmethod => 'f' }, { castsource => 'int8range', casttarget => 'int8multirange', castfunc => 'int8multirange(int8range)', castcontext => 'e', castmethod => 'f' }, { castsource => 'numrange', casttarget => 'nummultirange', castfunc => 'nummultirange(numrange)', castcontext => 'e', castmethod => 'f' }, { castsource => 'daterange', casttarget => 'datemultirange', castfunc => 'datemultirange(daterange)', castcontext => 'e', castmethod => 'f' }, { castsource => 'tsrange', casttarget => 'tsmultirange', castfunc => 'tsmultirange(tsrange)', castcontext => 'e', castmethod => 'f' }, { castsource => 'tstzrange', casttarget => 'tstzmultirange', castfunc => 'tstzmultirange(tstzrange)', castcontext => 'e', castmethod => 'f' }, ]