Commit Graph

12 Commits

Author SHA1 Message Date
Tom Lane
31edbadf4a Downgrade implicit casts to text to be assignment-only, except for the ones
from the other string-category types; this eliminates a lot of surprising
interpretations that the parser could formerly make when there was no directly
applicable operator.

Create a general mechanism that supports casts to and from the standard string
types (text,varchar,bpchar) for *every* datatype, by invoking the datatype's
I/O functions.  These new casts are assignment-only in the to-string direction,
explicit-only in the other, and therefore should create no surprising behavior.
Remove a bunch of thereby-obsoleted datatype-specific casting functions.

The "general mechanism" is a new expression node type CoerceViaIO that can
actually convert between *any* two datatypes if their external text
representations are compatible.  This is more general than needed for the
immediate feature, but might be useful in plpgsql or other places in future.

This commit does nothing about the issue that applying the concatenation
operator || to non-text types will now fail, often with strange error messages
due to misinterpreting the operator as array concatenation.  Since it often
(not always) worked before, we should either make it succeed or at least give
a more user-friendly error; but details are still under debate.

Peter Eisentraut and Tom Lane
2007-06-05 21:31:09 +00:00
Tom Lane
684ad6a92f Rename contrib contains/contained-by operators to @> and <@, per discussion. 2006-09-10 17:36:52 +00:00
Andrew Dunstan
596b858fcb fix most regression tests for new cube code. 2006-07-27 16:12:36 +00:00
Bruce Momjian
796de9c1ed /contrib/cube improvements:
Update the calling convention for all external facing functions. By
external facing, I mean all functions that are directly referenced in
cube.sql. Prior to my update, all functions used the older V0 calling
convention. They now use V1.

New Functions:

cube(float[]), which makes a zero volume cube from a float array

cube(float[], float[]), which allows the user to create a cube from
two float arrays; one for the upper right and one for the lower left
coordinate.

cube_subset(cube, int4[]), to allow you to reorder or choose a subset of
dimensions from a cube, using index values specified in the array.

Joshua Reich
2006-07-25 23:23:45 +00:00
Tom Lane
dcf2e1c8c7 Remove the << >> &< and &> operators for contrib/cube, which were
wrong, but nobody noticed because they were also useless.
2005-06-27 01:19:43 +00:00
Bruce Momjian
80b3513d57 The attached patch provides cube with 4 functions for building cubes
directly from float8 values. (As opposed to converting the values to
strings
and then parsing the strings.)
The functions are:
cube(float8) returns cube
cube(float8,float8) returns cube
cube(cube,float8) returns cube
cube(cube,float8,float8) returns cube

Bruno Wolff III
2003-02-13 05:26:50 +00:00
Bruce Momjian
e5cf1a8a26 SET autocommit no longer needed in /contrib because pg_regress.sh does
it automatically now on regression session startup.
2002-10-21 01:42:14 +00:00
Bruce Momjian
aa4c702eac Update /contrib for "autocommit TO 'on'".
Create objects in public schema.

Make spacing/capitalization consistent.

Remove transaction block use for object creation.

Remove unneeded function GRANTs.
2002-10-18 18:41:22 +00:00
Bruce Momjian
e57ab04565 This is a comprehensive set of diffs (versus current CVS) that replaces those
attached to the same message with the Earth Distance patches.
Recent changes include changing the subscript in one place I forgot
in the previous bugfix patch. A couple of added regression tests, which
should help catch this mistake if it reappears.
I also put in a limit of 100 dimensions in cube_large and cube_in to
prevent making it easy to create very large cubes. Changing one define
in cubedata.h will raise the limit if some needs more dimensions.

Bruno Wolff III
2002-09-12 00:26:00 +00:00
Bruce Momjian
32784cddf1 The changes I have made are described in CHANGES. This was based on
diffs to 7.3-devel and may not be applicable to 7.2. I have included a
change covered by a previous bugfix patch I submitted (the problem with
-.1 not being accepted by cube_in). It does not include a fix for the
potential buffer overrun issue I reported for cube_yyerror in
cubeparse.y.


Bruno Wolff III
2002-08-29 23:03:58 +00:00
Tom Lane
119fd7956a Remove test of 'inf' since it introduces a platform dependency (some
Unixen spell it 'Inf').  Not worth adding multiple expected files and
a resultmap just for this.
2001-08-23 15:10:17 +00:00
Tom Lane
9892ddf5ee Gene Selkov's CUBE datatype (GiST example code) 2000-12-11 20:39:15 +00:00