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Create real array comparison functions (that use the element datatype's

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comparison functions), replacing the highly bogus bitwise array_eq.  Create
a btree index opclass for ANYARRAY --- it is now possible to create indexes
on array columns.
Arrange to cache the results of catalog lookups across multiple array
operations, instead of repeating the lookups on every call.
Add string_to_array and array_to_string functions.
Remove singleton_array, array_accum, array_assign, and array_subscript
functions, since these were for proof-of-concept and not intended to become
supported functions.
Minor adjustments to behavior in some corner cases with empty or
zero-dimensional arrays.

Joe Conway (with some editorializing by Tom Lane).
This commit is contained in:
Tom Lane
2003-06-27 00:33:26 +00:00
parent 0c985ab5a8
commit b3c0551eda
28 changed files with 1731 additions and 557 deletions
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4
src/backend/parser/parse_expr.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.150 2003/06/25 21:30:31 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.151 2003/06/27 00:33:25 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -743,7 +743,7 @@ transformExpr(ParseState *pstate, Node *expr)
ArrayExpr *e = (ArrayExpr *) lfirst(element);
if (!IsA(e, ArrayExpr))
elog(ERROR, "Multi-dimensional ARRAY[] must be built from nested array expressions");
elog(ERROR, "Multidimensional ARRAY[] must be built from nested array expressions");
if (ndims == 0)
ndims = e->ndims;
else if (e->ndims != ndims)