652 Commits

Author SHA1 Message Date
Tom Lane
393f313227 Change parse-time representation of float literals (which include oversize
integers) to be strings instead of 'double'.  We convert from string form
to internal representation only after type resolution has determined the
correct type for the constant.  This eliminates loss-of-precision worries
and gets rid of the change in behavior seen at 17 digits with the
previous kluge.
2000-02-21 18:47:12 +00:00
Tom Lane
07c495f5d8 Further cleanups for type coercion: treat the locution typename(argument)
as representing a type coercion request in more cases than we did before.
It will work now whenever no underlying function is required, ie if the
coercion is binary-compatible or if the argument is a previously untyped
string constant.  Otherwise, you still need a real function to exist.
2000-02-20 23:04:06 +00:00
Tom Lane
57b30e8e22 Create a new expression node type RelabelType, which exists solely to
represent the result of a binary-compatible type coercion.  At runtime
it just evaluates its argument --- but during type resolution, exprType
will pick up the output type of the RelabelType node instead of the type
of the argument.  This solves some longstanding problems with dropped
type coercions, an example being 'select now()::abstime::int4' which
used to produce date-formatted output, not an integer, because the
coercion to int4 was dropped on the floor.
2000-02-20 21:32:16 +00:00
Tom Lane
5253c518ae Fix broken list-slinging logic in func_select_candidate and
agg_select_candidate, which could cause them to keep more candidates
than they should and thus fail to select a single match.  I had
previously fixed the identical bug in oper_select_candidate, but
didn't realize that the same error was repeated over here.
Also, repair func_select_candidate's curious notion that it could
scribble on the input type-OID vector.  That was causing failure to
apply necessary type coercion later on, leading to malfunction of
examples such as select date('now').
2000-02-20 06:35:08 +00:00
Tom Lane
f4d108a257 Even after the great date/time consolidation, TypeCategory() was still
a few bricks shy of a load concerning knowing all the date/time types.
This is real bad because it interferes with func_select_candidate()'s
willingness to disambiguate functions --- func_select_candidate() will
punt unless all the available choices have the same type category.
I think this whole mechanism needs redesigned, but in the meantime
this is a needed patch.
2000-02-20 06:28:42 +00:00
Tom Lane
37a71f90b2 Fix SERIAL columns, which Thomas inadvertently broke parsing of.
Revised code probably accepts some silly combinations, but that's better
than not accepting valid ones.
2000-02-20 02:14:58 +00:00
Tom Lane
751a14e60c Repair longstanding violation of SQL92 semantics: GROUP BY would
interpret a column name as an output column alias (targetlist AS name),
ather than a real column name as it ought to.  According to the spec,
only ORDER BY should look at output column names.  I left in GROUP BY's
willingness to use an output column number ('GROUP BY 2'), even though
this is also contrary to the spec --- again, only ORDER BY is supposed
to accept that.  But there is no possible reason to want to GROUP BY
an integer constant, so keeping this old behavior won't break any
SQL-compliant queries.  DISTINCT ON will behave the same as GROUP BY.

Change numerology regress test, which depended on the incorrect
behavior.
2000-02-19 23:45:07 +00:00
Tom Lane
bd43ae0ecd Accept the noise-word ALL in aggregate function invocations for SQL92
compliance.  Wish they were all that easy...
2000-02-19 19:37:21 +00:00
Thomas G. Lockhart
dfdff4e0f1 First workaround solution for Jan's column constraint attributes. 2000-02-19 08:25:49 +00:00
Tom Lane
3cfdd8fdf2 Clean up scan.l's handling of \r vs \n --- they are reliably treated as
equivalent now, which should make Windows and Mac clients happier.
Also fix failure to handle SQL comments between segments of a multiline
quoted literal.
2000-02-19 04:17:25 +00:00
Hiroshi Inoue
e3a97b370c Implement reindex command 2000-02-18 09:30:20 +00:00
Thomas G. Lockhart
41f1f5b76a Implement "date/time grand unification".
Transform datetime and timespan into timestamp and interval.
 Deprecate datetime and timespan, though translate to new types in gram.y.
 Transform all datetime and timespan catalog entries into new types.
 Make "INTERVAL" reserved word allowed as a column identifier in gram.y.
 Remove dt.h, dt.c files, and retarget datetime.h, datetime.c as utility
  routines for all date/time types.
 date.{h,c} now deals with date, time types.
 timestamp.{h,c} now deals with timestamp, interval types.
 nabstime.{h,c} now deals with abstime, reltime, tinterval types.
Make NUMERIC a known native type for purposes of type coersion. Not tested.
2000-02-16 17:26:26 +00:00
Tom Lane
90e160beff Fix missing lfirst() in ListTableAsAttrs(). This code
doesn't seem to be used at the moment, but as long as I'm looking at it...
2000-02-15 23:09:08 +00:00
Tom Lane
1204c3e964 Remove some // comments, which are not ANSI C last I heard. 2000-02-15 07:47:37 +00:00
Thomas G. Lockhart
a344a6e7b5 Carry column aliases from the parser frontend. Enables queries like
SELECT a FROM t1 tx (a);
Allow join syntax, including queries like
  SELECT * FROM t1 NATURAL JOIN t2;
Update RTE structure to hold column aliases in an Attr structure.
2000-02-15 03:38:29 +00:00
Thomas G. Lockhart
5c4b2b23af Add "DEC" as synonym for "DECIMAL".
Add "SESSION_USER" as SQL92 keyword; equivalent to CURRENT_USER for now.
Implement column aliases (aka correlation names) and more join syntax.
Fix up indenting and tabbing.
2000-02-15 03:26:38 +00:00
Bruce Momjian
4842ef8624 Mask removal of network_ops in 7.0. 2000-02-07 21:24:15 +00:00
Jan Wieck
aef647a274 Enabled MATCH <unspecified>
Jan
2000-02-07 18:12:49 +00:00
Jan Wieck
ad15560573 Enabling automatic primary key detection for self-referencing
FOREIGN KEY constraint during CREATE TABLE. Tnx to Stephan.

Jan
2000-02-05 00:20:38 +00:00
Jan Wieck
ddd596d386 Added ALTER TABLE ... ADD CONSTRAINT (provided by Stephan Szabo).
Added constraint dumping capability to pg_dump (also from Stephan)

Fixed DROP TABLE -> RelationBuildTriggers: 2 record(s) not found for rel
error.

Fixed little error in gram.y I made the last days.

Jan
2000-02-04 18:49:34 +00:00
Jan Wieck
31a8996ba4 Inconsistency in CREATE CONSTRAINT TRIGGER with the
actions performed by analyse.c when creating table constraints.

Jan
2000-02-02 20:54:17 +00:00
Peter Eisentraut
2b84cbb60f A few minor psql enhancements
Initdb help correction
Changed end/abort to commit/rollback and changed related notices
Commented out way old printing functions in libpq
Fixed a typo in alter table / alter column
2000-01-29 16:58:54 +00:00
Tom Lane
dd979f66be Redesign DISTINCT ON as discussed in pgsql-sql 1/25/00: syntax is now
SELECT DISTINCT ON (expr [, expr ...]) targetlist ...
and there is a check to make sure that the user didn't specify an ORDER BY
that's incompatible with the DISTINCT operation.
Reimplement nodeUnique and nodeGroup to use the proper datatype-specific
equality function for each column being compared --- they used to do
bitwise comparisons or convert the data to text strings and strcmp().
(To add insult to injury, they'd look up the conversion functions once
for each tuple...)  Parse/plan representation of DISTINCT is now a list
of SortClause nodes.
initdb forced by querytree change...
2000-01-27 18:11:50 +00:00
Bruce Momjian
5c25d60244 Add:
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc

to all files copyright Regents of Berkeley.  Man, that's a lot of files.
2000-01-26 05:58:53 +00:00
Peter Eisentraut
bdb41ad0e7 Made abstime/reltime use int4 instead of time_t (TODO item)
Made type equivalency apply to aggregates (TODO item)
Fixed parsing bug in psql
Reverted some stupid options changes I made to pg_dump
2000-01-24 19:34:19 +00:00
Tatsuo Ishii
2605ceb704 Fix error messages for the lack of multi-byte support.
Since --with-mb has been removed from configure, previous
messages were not appropriate.
2000-01-23 08:16:37 +00:00
Peter Eisentraut
49581f9848 updated install file
updated date/time types doc
fixed small psql bug
removed libpq code that lower-cased db names
make notice when long identifier is truncated
2000-01-23 01:27:39 +00:00
Peter Eisentraut
fa5400c0a4 added ALTER TABLE DROP COLUMN, early version 2000-01-22 14:20:56 +00:00
Tom Lane
d32cd1bb25 Forgot to handle column length defaults in ALTER TABLE ADD COLUMN. 2000-01-22 01:22:48 +00:00
Tom Lane
1c15186747 Clean up longstanding gcc warnings by adding missing extern
declarations.
2000-01-20 05:26:54 +00:00
Tom Lane
7476e3718b Assign a typmod of -1 to unadorned CHAR and NUMERIC type specs. This
allows casts without specific length requirements to continue to work
as they did before; that is, x::char will not truncate the value of x,
whereas x::char(1) will.  Likewise for NUMERIC precision/scale.
The column length defaults of char(1) and numeric(30,6) are now inserted
in analyze.c's processing of CREATE TABLE.
2000-01-20 02:24:50 +00:00
Peter Eisentraut
533d516629 Removed MBFLAGS from makefiles since it's now done in include/config.h. 2000-01-19 02:59:03 +00:00
Peter Eisentraut
f565cf41ab another set of cleanups 2000-01-18 23:30:24 +00:00
Bruce Momjian
80c5fea99d Since this patch is not big I send it here instead. I do not have the
complete source checked out so I cannot commit it myself.

Michael
2000-01-18 19:08:13 +00:00
Bruce Momjian
e1cce4d5ea This corrects an error in current gram.y for ALTER TABLE ... ADD
CONSTRAINT

Oliver Elphick
2000-01-18 06:12:03 +00:00
Tom Lane
ac4878a060 Pass atttypmod to CoerceTargetExpr, so that it can pass it on to
coerce_type, so that the right things happen when coercing a previously-
unknown constant to a destination data type.
2000-01-17 02:04:16 +00:00
Tom Lane
49528361f5 Create a new parsetree node type, TypeCast, so that transformation of
SQL cast constructs can be performed during expression transformation
instead of during parsing.  This allows constructs like x::numeric(9,2)
and x::int2::float8 to behave as one would expect.
2000-01-17 00:14:49 +00:00
Peter Eisentraut
759fba4873 Included all yacc and lex files into the distribution. 2000-01-16 20:05:00 +00:00
Tom Lane
7d715ba063 Fix broken FOR UPDATE error message. 2000-01-16 08:21:59 +00:00
Bruce Momjian
faff1b776b Fix passing of atttypmod that Tom found. 2000-01-16 05:18:19 +00:00
Peter Eisentraut
1cd4c14116 Fixed all elog related warnings, as well as a few others. 2000-01-15 02:59:43 +00:00
Peter Eisentraut
4ceb2d0cb6 * User management commands no longer user pg_exec_query_dest -> more robust
* Let unprivileged users change their own passwords.

* The password is now an Sconst in the parser, which better reflects its text datatype and also
forces users to quote them.

* If your password is NULL you won't be written to the password file, meaning you can't connect
until you have a password set up (if you use password authentication).

* When you drop a user that owns a database you get an error. The database is not gone.
2000-01-14 22:11:38 +00:00
Peter Eisentraut
46a28f1b14 Fixed everything in and surrounding createdb and dropdb to make it more
error-proof. Rearranged some old code and removed dead sections.
2000-01-13 18:26:18 +00:00
Bruce Momjian
8a093d0ae3 Make number of args to a function configurable. 2000-01-10 17:14:46 +00:00
Bruce Momjian
a040281787 Move fixes for >8 indexed fields. 2000-01-10 05:20:26 +00:00
Jan Wieck
b7b6d4bf53 Changed "triggered data change violation" detection code
in trigger manager.

Jan
2000-01-06 20:47:01 +00:00
Tom Lane
350cb386af Clean up handling of explicit NULL constants. Cases like
SELECT null::text;
	SELECT int4fac(null);
work as expected now.  In some cases a NULL must be surrounded by
parentheses:
	SELECT 2 + null;                 fails
	SELECT 2 + (null);               OK
This is a grammatical ambiguity that seems difficult to avoid.  Other
than that, NULLs seem to behave about like you'd expect.  The internal
implementation is that NULL constants are typed as UNKNOWN (like
untyped string constants) until the parser can deduce the right type.
1999-12-24 06:43:34 +00:00
Thomas G. Lockhart
aac9f5bee8 Re-enable makeAttr() if ENABLE_OUTER_JOINS is defined.
Somehow got bracketed with #ifdef NOT_USED instead.
1999-12-17 14:47:35 +00:00
Bruce Momjian
21992ed10a Reverse out nextval patch. 1999-12-17 01:25:25 +00:00
Jan Wieck
397e9b32a3 Some changes to prepare for LONG attributes.
Jan
1999-12-16 22:20:03 +00:00