| Commit message (Collapse) | Author | Age |
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Still needs to be filled with more information, but it gives us a
framework to have a User's Guide with complete coverage of the basic
SQL operations. Move arrays into data type chapter, inheritance into
DDL chapter (for now).
Make <comment>s show up in the output while the version number ends in
"devel".
Allow cross-book references with entities &cite-user; etc.
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hardwired lists of index names for each catalog, use the relcache's
mechanism for caching lists of OIDs of indexes of any table. This
reduces the common case of updating system catalog indexes to a single
line, makes it much easier to add a new system index (in fact, you
can now do so on-the-fly if you want to), and as a nice side benefit
improves performance a little. Per recent pghackers discussion.
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of functions returning domain types, update documentation for typtype,
move get_typtype to lsyscache.c (actually, resurrect the old version),
add defense against creating pseudo-typed table columns, fix some
bogus list-parsing in grammar. Issues remain with respect to alias
handling and type checking; Joe is on those.
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location feature.
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in checkretval about which paths are for base or complex return type.
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types for Table Functions, as previously proposed on HACKERS. Here is a
brief explanation:
1. Creates a new pg_type typtype: 'p' for pseudo type (currently either
'b' for base or 'c' for catalog, i.e. a class).
2. Creates new builtin type of typtype='p' named RECORD. This is the
first of potentially several pseudo types.
3. Modify FROM clause grammer to accept:
SELECT * FROM my_func() AS m(colname1 type1, colname2 type1, ...)
where m is the table alias, colname1, etc are the column names, and
type1, etc are the column types.
4. When typtype == 'p' and the function return type is RECORD, a list
of column defs is required, and when typtype != 'p', it is
disallowed.
5. A check was added to ensure that the tupdesc provide via the parser
and the actual return tupdesc match in number and type of
attributes.
When creating a function you can do:
CREATE FUNCTION foo(text) RETURNS setof RECORD ...
When using it you can do:
SELECT * from foo(sqlstmt) AS (f1 int, f2 text, f3 timestamp)
or
SELECT * from foo(sqlstmt) AS f(f1 int, f2 text, f3 timestamp)
or
SELECT * from foo(sqlstmt) f(f1 int, f2 text, f3 timestamp)
Included in the patches are adjustments to the regression test sql and
expected files, and documentation.
p.s.
This potentially solves (or at least improves) the issue of builtin
Table Functions. They can be bootstrapped as returning RECORD, and
we can wrap system views around them with properly specified column
defs. For example:
CREATE VIEW pg_settings AS
SELECT s.name, s.setting
FROM show_all_settings()AS s(name text, setting text);
Then we can also add the UPDATE RULE that I previously posted to
pg_settings, and have pg_settings act like a virtual table, allowing
settings to be queried and set.
Joe Conway
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Can now do queries of the form: SELECT value IS OF (integer, float8);
Define macros for handling typmod manipulation for date/time types.
Should be more robust than all of that brute-force inline code.
Rename macros for masking and typmod manipulation to put TIMESTAMP_
or INTERVAL_ in front of the macro name, to reduce the possibility
of name space collisions.
Allow bit string constants without fully-specified length declaration.
Try implementing CREATE TABLE/OF as a mapping to inheritance.
May be appropriate, or may be replace later with something more exactly
like one might expect from databases without the feature.
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select value IS OF (integer, float8);
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strings. Should go back in and look at doing this a bit more elegantly
and (hopefully) cheaper. Probably not too bad anyway, but it seems a
shame to scan the strings twice: once for length for this buffer overrun
protection, and once to parse the line.
Remove use of pow() in date/time handling; was already gone from everything
*but* the time data types.
Define macros for handling typmod manipulation for date/time types.
Should be more robust than all of that brute-force inline code.
Rename macros for masking and typmod manipulation to put TIMESTAMP_
or INTERVAL_ in front of the macro name, to reduce the possibility
of name space collisions.
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Should be more robust than all of that brute-force inline code.
Rename macros for masking and typmod manipulation to put TIMESTAMP_
or INTERVAL_ in front of the macro name, to reduce the possibility
of name space collisions.
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May not be the long-term solution (some continuing discussion with
Peter E.) but better than the current mapping of a conversion to integer
which I'd put in years ago before we had any bit string types at all.
This is already supported in the bit string implementation elsewhere.
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Implement conversion between 8-byte integers and bit strings.
Similar to what is done for 4-byte integers.
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Which was true when he submitted it, but is so no longer.
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> please find attached patch to current CVS ( contrib/ltree)
> Version for 7.2 is distributed as separate package -
I believe that patch also intended to remove contrib/ltree/patch.72
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Please use this patch instead of my previously submitted one.
It is just remerged against HEAD for new alter_table.out stuff.
Another reason this patch is useful for _interactive_ users: imagine a
view based on a many way join. Imagine creating a complicated insert
rule that inserts into all the joined tables and when you insert you get
a check failure, but you need to know which actual table the constraint
was on that failed!
Christopher Kings-Lynne
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the statistics collector and makes a number of corrections to the
documentation for SET, SHOW, and COPY.
Neil Conway
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ERROR: ExecInsert: rejected due to CHECK constraint insert_con
To be like this:
ERROR: ExecInsert: rejected due to CHECK constraint "insert_con" on
"insert_tbl"
Updated regression tests to match.
I got sick of seeing 'rejected due to CHECK constraint "$1" in my log and
not being able to find the bug in our website code...
Christopher Kings-Lynne
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Neil Conway
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Changes:
July 31, 2002
Now works on 64-bit platforms.
Added function lca - lowest common ancestor
Version for 7.2 is distributed as separate package -
http://www.sai.msu.su/~megera/postgres/gist/ltree/ltree-7.2.tar.gz
Oleg Bartunov
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when compiling psql with GCC 3.1.
Neil Conway
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functionality of the command is basically identical to that of
BEGIN; it just accepts a few extra options (only one of which
PostgreSQL currently implements), and is standards-compliant.
The patch includes a simple regression test and documentation.
[ Regression tests removed, per Peter.]
Neil Conway
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there was a race condition between the "alter_table" and "rules"
regression tests. Depending on scheduling, sometimes an ALTER
TABLE command would operate on a relation created by the "rules"
tests, leading to unexpected results.
Neil Conway
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Neil Conway
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whitespaces in identifers of any kind(table names,attribute
names,variables ...) in Pl/pgSQL procedural language.Explicit definition
of bug can be found in Re: [HACKERS] Bug of PL/pgSQL parser
TODO item completed:
o -Fix PL/PgSQL to handle quoted mixed-case identifiers
eutm
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functions. If there are no objections, please apply.
Joe Conway
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in the relcache. It's rather silly that we have reference count leak
checks in bufmgr and in catcache, but not in relcache which will normally
have many fewer entries. Chris K-L would have caught at least one bug
in his recent DROP patch if he'd had this.
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relation being modified. In most paths of control we'd already have
such a lock, but if we were dropping the default due to a cascaded
delete of some function it depended on, maybe not.
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> o -Add ALTER TABLE DROP COLUMN feature
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> o -Add ALTER TABLE DROP COLUMN feature [drop]
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code review by Tom Lane. Remaining issues: functions that take or
return tuple types are likely to break if one drops (or adds!)
a column in the table defining the type. Need to think about what
to do here.
Along the way: some code review for recent COPY changes; mark system
columns attnotnull = true where appropriate, per discussion a month ago.
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