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Fix up text concatenation so that it accepts all the reasonable cases that

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were accepted by prior Postgres releases.  This takes care of the loose end
left by the preceding patch to downgrade implicit casts-to-text.  To avoid
breaking desirable behavior for array concatenation, introduce a new
polymorphic pseudo-type "anynonarray" --- the added concatenation operators
are actually text || anynonarray and anynonarray || text.
This commit is contained in:
Tom Lane
2007-06-06 23:00:50 +00:00
parent 7dab4f75ca
commit 2d4db3675f
22 changed files with 301 additions and 109 deletions
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4
src/include/utils/lsyscache.h
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@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/lsyscache.h,v 1.118 2007/04/02 03:49:41 tgl Exp $
* $PostgreSQL: pgsql/src/include/utils/lsyscache.h,v 1.119 2007/06/06 23:00:47 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -130,7 +130,7 @@ extern char *get_namespace_name(Oid nspid);
extern Oid get_roleid(const char *rolname);
extern Oid get_roleid_checked(const char *rolname);
#define is_array_type(typid) (get_element_type(typid) != InvalidOid)
#define type_is_array(typid) (get_element_type(typid) != InvalidOid)
#define TypeIsToastable(typid) (get_typstorage(typid) != 'p')